WO2014168216A1 - Data processing device, medical testing system, and computer program - Google Patents

Abstract

This data processing device (500) is provided with a control unit (501a) and a display unit (502). Said control unit (501a) has the ability to: (a) acquire data (552) constituting a radiographic image taken of a patient by an imaging device; (b) acquire exposure-time data associated with an imaging test performed by the imaging device; (c) acquire injection-history data associated with the injection of a chemical into the patient; (d) create, and make the display unit display, a browsing screen (551) displaying one or more radiographic images; and (e) create, and make the display unit display, a results graph (560) that displays the injection-history data (561) and the exposure-time data (563) together, either the horizontal axis or the vertical axis of said results graph being a time axis.

Description

Data processing apparatus, medical examination system, and computer program

The present invention relates to a data processing apparatus and the like used together with an imaging system including a fluoroscopic imaging device and a chemical liquid injector, and in particular, image data obtained by fluoroscopic imaging, and history data of the chemical injection performed. The present invention relates to a data processing apparatus, a medical examination system, and a computer program capable of confirming a screen on a single screen.

Currently, CT (Computed Tomography) scanners, MRI (Magnetic Resonance Imaging) devices, PET (Positron Emission Tomography) devices, ultrasound diagnostic devices, angiographic imaging devices, etc. are known as medical diagnostic imaging devices. ing. When using such an imaging apparatus, a patient may be injected with a contrast medium, physiological saline, or the like (hereinafter also simply referred to as “medical solution”).

On the other hand, in an image diagnostic apparatus (hereinafter, also simply referred to as “imaging apparatus”), a predetermined imaging plan is determined in consideration of, for example, patient physical information and imaging techniques, and fluoroscopic imaging is performed based on the imaging plan. Is done. For example, Patent Literature 1 discloses a technique for collectively managing the imaging condition information from the imaging apparatus and the infusion conditions from the chemical solution injecting apparatus by transmitting them to a predetermined hospital management server.

WO2007 / 105725

By the way, in a medical examination system, an operator often browses (interprets) a fluoroscopic image through a workstation or the like. The present inventors have found that it is desirable to be able to confirm patient image data and history data of performed chemical injections at a workstation. That is, it is considered that such a configuration makes it easier for doctors and the like to determine, for example, how much the contrast effect of the contrast agent is, or whether the performed contrast agent injection was appropriate. It is.

Therefore, an object of the present invention is to provide a data processing device, a medical examination system, and a computer program capable of confirming image data obtained by fluoroscopic imaging and history data of performed chemical injection on one screen. It is to provide.

A data processing apparatus according to an embodiment of the present invention for solving the above problems is as follows:
A data processing device used by being directly or indirectly connected to an imaging system including at least an imaging device that captures a fluoroscopic image of a patient and a drug solution injection device that injects at least a contrast medium as a drug solution into the patient,
A control unit and a display unit;
The controller is
(A) an image data acquisition unit that acquires data of a fluoroscopic image of a patient imaged by the imaging device;
(B) an exposure time data acquisition unit that acquires exposure time data in an imaging examination performed by the imaging device;
(C) an injection history data acquisition unit that acquires data of an injection history of chemical injection performed on the patient;
(D) creating a viewing screen displaying one or more of the fluoroscopic images and displaying the viewing screen on the display unit;
(E) A graph having either the horizontal axis or the vertical axis as a time axis, and a result graph in which the injection history data and the exposure time data are displayed together is created on the display unit. A data processing apparatus comprising: a result graph creating unit to be displayed;

(Explanation of terms)
“Chemical solution” refers to, for example, a contrast agent, physiological saline, or a mixture thereof.
The “infusion protocol” indicates what kind of chemical solution is to be infused, how much, and at what rate.
“Image Data” —In this specification, “image data” may be synonymous with “image”.
“Data” —In this specification, “data” may be synonymous with “information”.
“Patient” —As used herein, “patient” may be synonymous with “subject”.
“Operator” —As used herein, “operator” may be synonymous with “user”, “doctor”, “medical worker”, and the like.
“Connection” —In this specification, when a given device is said to be connected to another device, it may be either wired or wireless.

(General description of the chemical injection device)
In one embodiment, the “chemical solution injector” includes the following components: a piston drive mechanism, a control unit (control unit), a display, and the like.
Here, these components may be provided in any device constituting the chemical liquid injector. That is, when the chemical liquid injector includes an injection head, a console, and the like, (i) the injection head may be provided with a piston drive mechanism, and the console may be provided with a control unit and a display, or (ii) the injection head A control unit may be provided on both the console and the console. (Iii) A display may be provided on both the injection head and the console. Such a control unit (control unit) may be provided as a part of an imaging apparatus such as a CT scanner, an MRI apparatus, a PET apparatus, an ultrasonic diagnostic apparatus, or an angiographic imaging apparatus.

Data receiver: The data receiver is for receiving data transmitted from the outside to the injection head or the like by wire or wireless. For example, the data receiver may receive data such as the following from the outside: any data generated by the imaging device, any data generated by the hospital system, and so on.

Data transmitter: The data transmitter is for sending predetermined data from the injection head to the outside by wire or wireless. As a communication protocol for the data receiver and the data transmitter, a suitable protocol may be adopted in consideration of a communication system with another device which is a communication partner. Note that a data transmitter or the like that communicates with an external device may be provided in a console or other device.

According to the present invention, there is provided a data processing device or the like that can confirm on one screen the image data obtained by fluoroscopic imaging and the history data of the performed chemical injection.

It is a perspective view which shows the structural example of a chemical injection device. It is a perspective view which shows an injection | pouring head and the chemical | medical solution syringe with which it is mounted | worn. It is a block diagram of a chemical injection device and an imaging device. It is a block diagram of a medical examination system. It is a block diagram which shows the function part which the control part of a workstation has. It is a block diagram which shows the function part which the control part of a chemical injection device has. It is a figure which shows an example of the physical structure of a workstation. It is a figure which shows an example of the display content of a browsing screen. It is a figure which shows an example of the result graph displayed on a browsing screen. It is a figure which shows the other example of the result graph displayed on a browsing screen. It is a figure which shows the further another example of the result graph displayed on a browsing screen. It is a perspective view which shows one Embodiment of a chemical injection device. It is a perspective view which shows the other example of a syringe. It is a perspective view which shows another example of a syringe. It is a figure which shows the other example of an extension tube. It is a figure which shows an example of a ceiling suspension type holding arm. It is a figure which shows an example of a sub display. It is a block diagram which shows DCU etc. which control the display content of a display. It is a figure which shows an example of a pressure graph. It is a figure which shows the example of the indicator in a pressure graph.

Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
As shown in FIG. 4A, a medical examination system 1000 according to this embodiment includes an imaging device 300 that captures a fluoroscopic image of a patient, a chemical solution injection device 100 that injects a chemical solution into a patient, and an RIS that is a radiology information system. (Radiology Information System) 701, PACS (Picture Archiving and Communication Systems) 702 that is an image storage communication system, and a workstation 500 that is a data processing device. A combination of the chemical solution injector 100 and the imaging device 300 may be referred to as an “imaging system”.

Note that FIG. 4A is merely an example of the present invention, and not all illustrated elements are essential to the present invention. Each device may be connected through a communication line such as a LAN (Local Area Network) or a dedicated line. The medical examination system 1000 may be compliant with DICOM (Digital Imaging and Communications in Medicine) which is a standard for digital medical images.

Hereinafter, each part of the system will be described in order. First, the chemical solution injection device 100 will be described, and then the imaging device 300, the RIS 701, the PACS 702, and the workstation 500 will be described.

[A1. Chemical injection device]
As shown in FIG. 1 as an example, the chemical liquid injector 100 includes an injection head 110 held on an upper part of a movable stand 111 and a console 150 electrically connected to the injection head 110 via a cable 102. . In this example, two syringes 200C and 200P are detachably attached to the injection head 110 in parallel as shown in FIG.

In the following description, the syringes 200C and 200P may be simply referred to as “syringe 200” without being distinguished. The “injection head” is also called an injector or an injection head. Moreover, although the following description demonstrates based on one specific form represented by drawing, about a chemical | medical solution injection device, a syringe, etc., various changes other than what is demonstrated below are possible.

(Syringe)
Examples of the chemical solution filled in the syringes 200C and 200P (see FIG. 2) include a contrast medium and physiological saline. For example, one syringe 200C may be filled with a contrast medium, and the other syringe 200P may be filled with physiological saline.

The syringe 200 has a hollow cylindrical cylinder member 221 and a piston member 222 that is slidably inserted into the cylinder member 221. The cylinder member 221 may have a cylinder flange 221a formed at the base end portion thereof and a conduit portion 221b formed at the tip end portion thereof. By pushing the piston member 222 into the cylinder member 221, the chemical solution in the syringe is pushed out through the conduit portion 221b. The syringe may be a prefilled type that is pre-filled with a chemical solution, or may be a suction type that sucks and uses a chemical solution in an empty syringe.

The extension tube 230 is connected to the conduit portion 221b of each syringe 200. The extension tube 230 may be a so-called T-shaped tube or Y-shaped tube. The tube 231a extends from the conduit portion 221b of one syringe 200C to the branch portion, and the tube extends from the conduit portion 221b of the other syringe 200P to the branch portion. It may have 231b and the tube 231c extended toward a patient from a branch part. For example, an injection needle is connected to the distal end side (not shown) of the tube 231c. This injection needle is punctured into a patient's blood vessel, and the chemical solution is injected into the blood vessel by pushing out the chemical solution in the syringe 200C and / or the syringe 200P.

As shown in FIG. 3, an IC tag 225 may be attached to a part of the cylinder member 221. This IC tag includes information on the syringe (syringe identification information, syringe pressure resistance, cylinder member inner diameter, piston member stroke, etc.), information on the chemical solution filled in the syringe (name (for example, product name), iodine, etc. Component information such as amount, expiry date, chemical volume, etc.) are stored. The IC tag may have a unique ID unique to the tag. The IC tag may have at least one information selected from a syringe size, a syringe serial number, and a drug standardization code. As the IC tag, for example, an RFID (Radio frequency identification) tag can be used. The position where the IC tag is attached may be, for example, the outer peripheral surface of the cylinder member 221, and specifically, may be near the cylinder flange on the outer peripheral surface.

(Injection head)
As shown in FIG. 2, the injection head 110 has a casing that extends long in the front-rear direction as an example, and two recesses in which syringes 200 </ b> C and 200 </ b> P are placed on the top end side of the casing, respectively. 120a is formed. The recessed part 120a is a part that functions as a syringe holding part.

The syringe 200 may be directly attached to the recess 120a, or may be attached via a predetermined syringe adapter. In FIG. 2, syringe adapters S121 and S122 that hold the cylinder flange 221a of each syringe 200 and the vicinity thereof are illustrated as an example. The shape and function of the syringe adapter are not limited to a specific one, and may be anything.

The injection head 110 also has a piston drive mechanism 130 having at least a function of pushing the piston member 222 of the syringe 200 as shown in FIGS. Two systems of piston drive mechanisms 130 are provided, and each mechanism 130 operates independently. The piston drive mechanism 130 may have a function of retracting the piston member 222, for example, for sucking a chemical solution into the syringe. The two piston drive mechanisms 130 may be driven simultaneously, or may be driven at different timings.

Although not shown in detail, the piston drive mechanism 130 is connected to a drive motor (not shown), a motion conversion mechanism (not shown) that converts the rotational output of the drive motor into a linear motion, and the motion conversion mechanism. It may have a syringe presser (ram member) for moving the piston member 222 forward and / or backward. As such a piston drive mechanism, a known mechanism generally used in a chemical liquid injector can be used.

The piston drive mechanism 130 may have a load cell (not shown) for detecting the force with which the ram member presses the piston member 220. For example, the estimated value of the pressure of the chemical solution when the chemical solution is being injected can be obtained using the detection result of the load cell. The calculation of the estimated value is performed in consideration of the needle size, the concentration of the drug solution, the injection conditions, and the like. In addition, instead of using a load cell (not shown), the pressure may be calculated based on a motor current of a drive motor (not shown). Further, both of these pressure detection methods may be provided.

A plurality of physical buttons for causing the injection head 110 to perform various operations are also provided on the top and side surfaces of the casing of the injection head 110. For example, some of these physical buttons may be configured to emit light in order to notify the operator of predetermined information.

When an IC tag is attached to the syringe 200, the injection head 110 has a reader / writer that reads information on the IC tag and / or writes information on the IC tag, as shown in FIG. May be. This reader / writer may be provided in the recess 120a in which the syringe is mounted. Note that the reader / writer may have only a function of reading information of the IC tag. In this case, it may simply be called a reader.

As shown in FIG. 3, the injection head 110 may have a control unit 144 for controlling operations of the piston drive mechanism 130 and the reader / writer 145. In addition, for example, a storage unit 146 that temporarily stores information read from the IC tag 225 may be included. The control unit 144 can be configured as a control circuit having a processor, a memory, and the like. In one example, one or more sensors are electrically connected to the control unit 144, an input device (input interface) such as a physical button is electrically connected, and an IC tag reader / writer is electrically connected. And a connection interface for connection with an external device is electrically connected.

(console)
The console 150 may be used by being placed in an operation room adjacent to the examination room. The console 150 includes a display unit 151 that displays a predetermined image, an operation panel 159 provided on the front surface of the casing, a control circuit (detailed below) disposed in the casing, and the like. The operation panel 159 is a portion where one or a plurality of physical buttons are arranged, and is operated by an operator. The operation panel 159 functions as an input interface.

The display unit 151 may be a touch panel display or a simple display. In the case of a touch panel display, the touch panel functions as an input interface. The console 150 may include a speaker or the like (not shown) for outputting sound and / or sound.

In the block diagram of FIG. 3, the console 150 includes a control unit 153 that controls the operation of each connected unit, a storage unit 154 that stores various data, and a connection interface for connecting to a predetermined external device. It is drawn as having.

The console 150 may have a connection interface for connection with the injection head 110 and a connection interface for connection with the imaging device. The console 150 may include a hand unit 157 (see FIG. 3, not shown in FIG. 1 and the like) operated by the operator.

Although detailed illustration is omitted, the console 150 may include a reading device that reads information on a computer-readable medium, a wireless module that performs predetermined data communication with an external device in a wireless manner, and the like.

The control unit 153 may include a memory, a processor, and the like, and may perform various processes according to an installed computer program. As an example, the control unit 153 may include a setting screen display unit 153a, an injection protocol creation unit 153b, an injection control unit 153c, a history generation unit 153d, and a history output unit 153e, as shown in FIG.

The setting screen display unit 153a may correspond to a function for causing the display unit 151 to display information for setting the injection protocol.

The protocol creation unit 153b may correspond to, for example, a function of receiving an input operation on the touch panel of the display unit 151 by an operator and creating an injection protocol. The condition input by the operator as described above may be, for example, at least one selected from the type of chemical solution, the injection rate of the chemical solution, the injection amount of the chemical solution, and the patient's physical information.

The injection control unit 153c may correspond to a function of controlling the operation of the piston drive mechanism 130 according to the created injection protocol. The injection control unit 153b may operate only one of the piston drive mechanisms 130 and operate both at the same time.

The history generation unit 153d may correspond to a function for generating injection history data. The “injection history data” may include, for example, at least one of the following information:
-A graph showing the relationship between elapsed time and chemical pressure (estimated value) during chemical injection-Chemical injection speed-Chemical injection volume-Chemical injection time (infusion duration)
-Injection pressure of drug solution-Injection time-Type of drug solution-Iodine amount of contrast agent-Body segment or imaging site into which drug solution was injected-Identification information for identifying performed drug solution injection-Patient identification information-Planned drug solution Infusion protocol (ie, configured infusion protocol).

In addition, information regarding whether or not the chemical liquid leaks out of the blood vessel during the injection of the chemical liquid may be included. In this case, specifically, only the information indicating that there has been extravascular leakage may be included in the injection history data, or the relationship between the set injection protocol and the transition graph of the chemical pressure is shown. Numerical data or image data may be included. As another mode, for example, in a configuration in which leakage is detected by a leakage detection sensor or the like including a light emitting element and a light receiving element, data of a detection result of the leakage detection sensor may be included in the history data. It is also preferable that information regarding such extravasation is displayed and confirmed on a workstation as will be described later.

The “time graph” is also called a pressure graph, for example, a plot of the estimated pressure value of a chemical solution calculated using a load cell or motor current (a pressure curve is drawn as a specific example). There may be. The time graph may be, for example, numerical data or image data, and the format is not particularly limited.
The “identification information for identifying the chemical injection” may be at least one of an inspection serial number, an injection operation ID, and information indicating the date and time of the injection operation.
The “patient identification information” may be at least one of a name, a patient ID, and information indicating a date of birth.
Regarding “a body segment or an imaging region into which a chemical solution has been injected”, the body segment is a high-order item representing a body segment such as the head, chest, and abdomen, and the imaging region includes, for example, the heart and liver included in the body segment , Sub-items such as blood vessels.

The history generation unit 153d may be, for example, a unit that associates information information related to chemical injection with time data when the chemical injection is performed. For example, the time data is the time data of an NTP (Network Time Protocol) server, the time data of another time server set based on the NTP server, or the time set based on such a server. It is also possible to use time data of a predetermined device or time data in a console whose time is set based on such a server. Data from the history generation unit 153d may be stored in a predetermined storage device in the chemical liquid injector, a predetermined server on the network, or the like.

The history output unit 153e may correspond to a function of transmitting injection history data to the outside. Specifically, data may be transmitted to a predetermined external device and / or network. Of course, such data transmission can be performed via a wired or wireless transmission means (a transmitter that communicates with an external device in one example). Chemical information or syringe information obtained from an IC tag of a syringe or manually input by an operator or input from an external network or the like (for example, identification ID of a syringe, product name, manufacturer name Etc.) may be transmitted from the liquid injector to the medical information system in the hospital via the transmitting means. For example, a system configuration in which a system having an accounting processing function performs accounting processing based on the information is also possible.

Note that the functions of the units 153a to 153e may be executed by the control unit 153 by an installed computer program. The computer program may be stored in advance in predetermined storage means (for example, the storage unit 154) in the console.

The storage unit 154 may store, for example, image data displayed on the display unit 151. Further, an algorithm including a calculation formula for setting injection conditions, and data of injection protocol may be stored. The injection rate may be constant or may change with time. In the case of injecting contrast medium and physiological saline, information on the order of injecting these drug solutions is also included in the injection protocol.

Note that information regarding such an injection protocol may be input from an external device connected via a connection interface terminal 158 in a wired or wireless manner. The console 150 may have a slot (not shown) and may be input through an external storage medium inserted therein.

The following changes may be made to the configuration of the injection head, console, etc .:
(A1) The injection head 110 and the console 150 may be connected not via the cable 102 but via a wireless communication unit or the like. In this case, the communication unit may be externally attached to the injection head 110 or may be built therein. Similarly, the communication unit may be externally attached to the console 150 or may be built therein.
(A2) Although not illustrated in FIG. 3, the chemical liquid injector 100 and the imaging device 300 may be connected by wire or wirelessly. Specifically, the console 150 may be connected to the imaging device 300 by wire or wireless. Alternatively, the injection head 110 may be connected to the imaging device 300 in a wired or wireless manner.

(A3) In the above description, an injection head to which two syringes are attached is shown, but an injection head to which only one injection head is attached may be used.
(A4) The chemical injection device 100 is not limited to the CT examination, but may be an MR examination, angiography examination, ultrasonic diagnosis, or the like.
(A5) As a contrast agent injection pattern, a variable pattern in which the injection speed is linearly reduced and thereafter the injection speed is kept constant and / or the injection speed is linearly reduced and thereafter the injection speed is linearized again. It is also possible to use variable patterns that increase in number.

(A6) In the above, for example, as shown in FIG. 1, the chemical injection device in which the injection head and the console are configured separately is shown. However, a chemical injection device such as the following may be used:
-A chemical injection device in which the injection head and the console are integrated, in other words, a single device is used to set the injection protocol, display various states during chemical injection, and control the operation of the piston drive mechanism. Such as a chemical injection device.
-The above-mentioned chemical solution injection apparatus in which the injection head and the console are integrated as one casing, and further comprising a separate battery unit. Such a battery unit may be an AC power source, may be installed at any location in the examination room, or may be held in a part of a movable stand.

A chemical injection device capable of controlling a predetermined operation of the chemical injection device from the outside of the examination room using, for example, a wired or wireless remote controller. In this case, the wireless system may be a system using infrared rays, or a wireless LAN, Wi-Fi (registered trademark), Bluetooth (registered trademark), ZigBee (registered trademark), or the like. Good.
-The controlled operation may be any operation including, for example, power on / off of the apparatus. As another example, the start and / or stop of any operation of the injection head may be controlled with a remote controller.
A chemical injection device in which the injection head and the console are separate, but the injection head is provided with a sub-display. The sub-display may be provided anywhere in the system as a stand-alone or as part of other equipment.

-A chemical injection device in which a control unit like a miniaturized console is arranged near the injection head. For example, such a control unit is held on a movable stand together with an injection head. Or, for example, such a control unit is held on a ceiling-suspended arm together with an injection head.
A configuration corresponding to a console (particularly, a configuration corresponding to the control unit 153), a configuration incorporated in the imaging device, or a configuration provided as a separate device from the imaging device and connected to the imaging device. In this case, a device having such a configuration may be referred to as a chemical solution injector, but may be expressed in terms such as a system.
The console may be a common console that can control the operation of both the injection head and the imaging device. In this case, the console provides a graphical user interface for setting injection conditions and / or imaging conditions, through which the operator sets the conditions, and the set conditions are the injection head and / or Or it may be sent to an imaging device and injection operation and / or imaging operation may be performed according to the conditions.

[A2. Imaging device]
As the imaging apparatus 300, an X-ray CT scanner or the like can be used. In this example, as illustrated in FIG. 3A, the imaging apparatus 300 includes an imaging unit 303b that captures a fluoroscopic image of a patient, a bed 304 on which the patient is placed, and a control unit 303a that controls the operations thereof. May be. The imaging device may also be an MRI (Magnetic Resonance Imaging) device, a PET (Positron Emission Tomography) device, an ultrasound diagnostic device, an angiography (angiography) imaging device, or the like.

The control unit 303a may have, for example, at least one of the following functions:
-Add identification information (image ID) to the acquired image.
-Add imaging time information to the acquired image.
-Send the patient's fluoroscopic image data to the outside.
-Send the exposure time data in the fluoroscopic imaging (one examination) performed to the outside.
-Send the exposure data in the fluoroscopic imaging (one examination) performed to the outside.
-Send the identification information of the fluoroscopic imaging performed to the outside.
-Send data of the time sequence of the perfusion inspection imaging operation performed to the outside.
Send any data to the connected PACS / RIS.
-Send arbitrary data to the connected chemical injection device.
Send arbitrary data to connected workstations.

These include, for example, an identification information adding unit, an imaging time information adding unit, an image data output unit, an exposure time data output unit, an exposure amount data output unit, a fluoroscopic imaging identification information output unit, a time sequence data output unit, and a PACS. You may implement | achieve by a communication part, a chemical | medical solution injection device communication part, a workstation communication part, etc.

Examples of the “exposure time data” include imaging start time (time) data and imaging end time (time) data relating to the imaging operation. When a plurality of imaging operations are performed in one inspection, data of each imaging start time and imaging end time is included. For example, data such as imaging operation 1: a second to b seconds, imaging operation 2: c seconds to d seconds, and imaging operation 3: e seconds to f seconds may be used.

Furthermore, in imaging using a contrast agent, for example, chemical injection is started, and then imaging may be started after a predetermined delay time. In this case, the start time of medicinal solution injection and the imaging start time in a strict sense do not coincide with each other. Even in such a case, it is identified that the medicinal solution injection and the imaging are related to each other. It is preferable to be configured to be able to. For example, when the imaging device and the chemical solution injector are linked, management may be performed based on the data of the linkage start time.

As an example, the time data provided by the imaging device includes time data of an NTP (Network Time Protocol) server, time data of another time server set based on the NTP server, or based on such a server. You may utilize the time data of the predetermined | prescribed apparatus in the system by which time was set, or the time data in the imaging device by which time was set based on such a server. The time data or the image data associated with the time data may be stored in a predetermined storage device in the imaging apparatus or a predetermined server on the network. (I) Image data, data in which imaging condition data is added to image data, data in which time data is added to image data, etc., and (ii) data related to chemical injection are stored in a common storage device or database server It is also preferred that it be stored.

The “patient fluoroscopic image data” may be CT image data, for example. This CT image data is obtained by tomographic imaging of a human body, and one image may include a two-dimensional tomographic image of an observation target such as a bone, blood vessel, or organ. Usually, it is obtained for many adjacent images (slice images). Therefore, as a whole, it may be handled as three-dimensional image data. The CT image data has a different CT value for each tissue (bone, blood vessel, organ, etc.) as a subject. The CT value is an X-ray attenuation coefficient of tissue expressed with water as a reference. The type of tissue or lesion can be determined from the CT value.

(Example of injection operation)
As an example, the chemical injection device may operate as follows:
First, the operator attaches the syringes 200 </ b> P and 200 </ b> C to the injection head 110 with the power of the chemical solution injection device 100 turned on. After attaching the syringes 200P and 200C, for example, the operator connects the extension tube to the syringes 200P and 200C via the extension tube 230, and inserts an injection needle (not shown) provided at the distal end of the extension tube to the patient. Puncture.

Thereafter, as an example, when the operator operates a predetermined button of the console 150, one or more screens for setting the injection protocol are displayed on the display unit 151. In this screen, at least one of the following parameters may be entered, selected or changed:
-Body segment to be imaged-Region to be imaged (imaged region)
-Information such as patient weight-Type of medicinal solution to be injected, etc.

¡Images for selecting these parameters may be displayed sequentially or collectively. The input, selection, or change of the parameters as described above may be automatically performed according to the function of the apparatus, or may be performed by the operation of the operator. The system includes and provides a graphical user interface (also referred to simply as GUI) for selecting parameters as described above.

When the parameter input is completed, the operator presses a predetermined button (for example, confirmation button) on the screen. When creating an injection protocol, according to the GUI image for creating the injection protocol displayed on the screen, for example, (i) select one of several basic patterns prepared in advance and check its contents Or change as needed, (ii) create an arbitrary injection protocol by plotting some reference points in the injection graph displayed on the GUI screen, etc. it can. Note that pressing of the confirmation button by the operator may be performed by pressing a button provided on the injection head.

In addition, about the finished injection | pouring protocol, the control part of a chemical | medical solution injection apparatus may be comprised so that the data may be preserve | saved at a predetermined memory | storage part. In this case, the storage unit may be a storage device included in a chemical solution injection device (for example, in a console), a storage medium inserted into a slot of the console, or a chemical solution injection by wire or wirelessly. It may be an external network storage device connected to the apparatus. Further, the control unit of the chemical solution injector may be stored in a locked state so that the contents of the injection protocol are not changed or overwritten later. The lock may be released by inputting a password.

When the injection protocol is created, after a predetermined injection start button is operated by the operator, the piston drive mechanism 130 is controlled based on the injection protocol, and the medical solution is injected into the patient.

During the chemical injection, after the injection, or both, the chemical injection device calculates the estimated pressure of the chemical based on the measured value of the load cell, for example. Further, the injection start time and the injection end time are measured using a time measurement function or the like. The chemical injection device creates various data created in this way as injection history data and stores it in a storage unit (not shown).

In addition, as an example, the chemical solution injection device obtains an estimated pressure value of the chemical solution based on the measured value of the load cell and / or using the motor current, and creates an injection pressure graph (time graph) based on the estimated pressure value. The injection pressure graph data may be stored in a storage unit (not shown) (for example, an arbitrary database server on the network). The data method at this time may be simple numerical character information or image data. Similarly, the injection conditions and the IC tag information of the syringe may be stored as numerical character information in a storage unit (not shown) (for example, any database server on the network).

[A3. RIS and PACS]
The RIS 701 may manage imaging order data for imaging a patient, for example. This imaging order data may include at least one of the following information, for example:
-Imaging work ID which is unique identification information,
-Identification information of the fluoroscopic imaging device,
-Patient identification information,
-Date and time of image capture.

The RIS 701 may store inspection information received from the chemical liquid injector.

The PACS 702 is for storing the patient's fluoroscopic image data. The PACS 702 is an example and may be configured as a database server in which a dedicated computer program is installed. The PACS 702 may have at least one of the following functions:
-Save the image data received from the imaging device 300.
-Save the examination information received from the chemical injection device.
Save the predetermined data received from the workstation 500.
-Send the stored data to the workstation 500.
-Send the stored predetermined data to any connected image browsing device (not shown).

[A4. Work station〕
The workstation 500 is used, for example, to view a patient's fluoroscopic image acquired by the imaging apparatus 300. The workstation 500 is configured by a computer or the like as an example, and as shown in FIGS. 4A and 6, a computer main body 503, a control unit 501a provided therein, a storage unit 501b, a display unit 502, Input devices 505 and 506 may be provided.

Note that the arrangement positions of the control unit 501a and the storage unit 501b are not particularly limited, and may be arranged inside or outside the computer main body 503. In the present embodiment, it is assumed that the “data processing apparatus” is configured by one computer. However, the present invention is not limited thereto, and a computer program that causes a plurality of computers to function as a single processing apparatus as a whole is also included in the “data processing apparatus” of the present invention.

The control unit 501a may include a processor and a memory. The workstation 500 includes a computer program processed by the processor, and this computer program may be stored in, for example, a storage device (not shown) in the storage unit 501b or the control unit 501.

The display unit 502 is controlled by the control unit 501a and displays various data such as inspection data and fluoroscopic images. The display unit 502 is configured by, for example, an LCD (Liquid Crystal Display).

Examples of the input devices 505 and 506 include arbitrary devices such as a keyboard, a mouse, a trackball, and a joystick. When the display unit 502 is a touch display, the touch panel display also serves as an input device.

The storage unit 501b stores various data. The storage unit 501b may be configured to include a storage device such as a hard disk drive. The control unit 501a can be implemented by data storage processing in the storage unit 501b or a conventionally known method.

The computer program of the workstation 500 may cause one computer or a plurality of computers to function as part or all of the following functional units:
(A) An image data acquisition unit (511) that acquires data (552) of a fluoroscopic image of a patient imaged by the imaging device when a predetermined input is made by a person or a device;
(B) an exposure time data acquisition unit (512) for acquiring exposure time data in an imaging examination performed by the imaging device when a predetermined input is made by a person or an apparatus;
(C) An injection history data acquisition unit (513) for acquiring injection history data of a chemical injection performed on the patient when a predetermined input is made by a person or a device;
(D) a browsing screen creation unit (514) that creates a browsing screen (551) that displays one or more of the fluoroscopic images when a predetermined input is made by a person or a device, and displays the screen on the display unit;
(E) A graph having a time axis on either the horizontal axis or the vertical axis when a predetermined input is made by a person or device, the injection history data (561) and the exposure time data ( 563) and a result graph creation unit (515) for creating a result graph (556) to be displayed together and displaying the result graph on the display unit,
(F) When the fluoroscopic image is paged according to a predetermined input from the operator when a predetermined input is made by a person or a device, the current position indicator (563c) is moved along the time axis in conjunction with the paged image. And (g) the fluoroscopic image data (552), the injection history data (561), and the exposure when there is a predetermined input by a person or device. A data output unit (517) for outputting at least one data selected from the time data (563) to the outside.

That is, the workstation 500 of this embodiment includes an image data acquisition unit 511, an exposure time data acquisition unit 512, an injection history data acquisition unit 513, a viewing screen generation unit 514, and a result graph generation unit 515 as illustrated in FIG. 4B. The paging interlocking processing unit 516 and the data output unit 517 may be included.

Next, data processing in the workstation 500 of this embodiment will be described.

(Example of first data processing)
As a premise in the following description, a state is assumed in which chemical injection and fluoroscopic imaging are performed on a patient. For convenience of explanation, various data related to the fluoroscopic image, time, conditions, and the like will be described with reference to the data displayed on the browsing screen 551 in FIG. 7 and the result graph 560 in FIG. 8A.

Regarding the chemical injection performed by the chemical injection device 100, for example, various conventionally known injection protocols can be used for the purpose of a desired contrast effect. Various conventionally known imaging techniques can also be used for perspective imaging performed by the imaging apparatus 300. In the present embodiment, the present invention is not limited to a specific injection protocol or imaging technique.

The chemical injection device 100 creates data of the injection history performed this time during the chemical injection, after the chemical injection, or both. As described above, the chemical injection device 100 prepares at least one of the following data, for example:
-Injection start time data and injection end time data,
-Planned infusion protocol data,
-Time graph data (for example, the horizontal axis is time and the vertical axis is the pressure value of the chemical)
-Patient identification information,
-Data on extravasation,
-Data read from IC tags,
-Information on side effects of the drug solution, etc.

As an example, these data may be stored in the storage unit 154, the storage unit 146, or both of the chemical injection device 100, or stored in a storage device (not shown) such as an external database server. Also good.

The imaging apparatus 300 performs fluoroscopic imaging according to a predetermined imaging plan set in advance, and obtains fluoroscopic image data of a predetermined imaging range of the patient. The imaging apparatus 300 stores the data of these fluoroscopic images, for example, in a predetermined storage unit (not shown) therein, or stores them on the PACS 702 side after transmitting them to the PACS 702.

The imaging apparatus 300 also creates exposure time data in the fluoroscopic imaging performed this time. Similarly to the image data, the exposure time data is also stored on the PACS side after being transmitted to a predetermined storage device (not shown) of the imaging apparatus 300 or PACS.

In such a state, the operator turns on the power of the workstation 500 and starts image browsing. As a specific example, the workstation 500 receives fluoroscopic image data 552a to 552c (with a distinction between them) by the image data acquisition unit 511 in response to a predetermined input from the operator or at a predetermined timing set in advance. And may be simply indicated as “552”). Note that this data may be acquired from the imaging apparatus 300 or may be acquired from the PACS 702 or the like. Any data format may be used for acquisition, such as numerical character information.

The workstation 500 also acquires exposure time data 563a and 563b (see FIG. 8A) by the exposure time data acquisition unit 512. Specifically, in the example as illustrated in FIG. 8A, data 563a of imaging start time and data 563b of imaging end time by the imaging apparatus 300 are acquired. This data may also be acquired from a storage unit (not shown) in the imaging apparatus 300, may be acquired from the PACS 702, or a combination thereof.

The workstation 500 also acquires the injection history data 561, 562a, 562b, and 562c (details below) regarding the drug injection performed on the patient by the injection history data acquisition unit 513. Specifically, in the example as shown in FIG. 8A, injection start time data 562a and injection end data 562b are acquired and displayed. In addition, data of the time graph 561 is acquired and displayed. These data can be acquired from, for example, a predetermined storage unit in the chemical liquid injector 100. The above operation may be performed in response to a predetermined input from the operator, or may be automatically performed at a predetermined timing set in advance. What is displayed as the injection history is arbitrary, and is not limited to that illustrated in FIG. 8A. For example, a mode in which only data of a time-dependent graph is displayed is also possible.

The time graph 561 may be such that the time is represented on the horizontal axis and the estimated value of the chemical pressure during the chemical injection is represented on the vertical axis. There is no particular limitation as to which device creates such a time-lapse graph. The chemical injection device 100 may create such a graph in advance, and the workstation 500 may acquire it as image data. Alternatively, the workstation 500 may acquire numerical information and character information for creating a time-dependent graph, and the workstation 500 may create a time-dependent graph as described above using the information.

Next, the workstation 500 creates and displays a browsing screen 551 as shown in FIG. 7 as an example by the browsing image creation unit 514. In the browsing screen 551, perspective images 552a, 552b, and 552c are displayed on three display portions. The workstation 500 has a so-called paging function, and the fluoroscopic image 552a (one example) changes according to the operation of the mouse by the operator, for example.

The workstation 500 also creates and displays a result graph 560 (see, for example, FIG. 7 and FIG. 8A) by the result graph section creation unit 515 when there is a predetermined input from the operator. Specifically, as shown in FIG. 8A, in the graph whose horizontal axis is the time axis, (i) a time graph 561, an indicator 562a indicating the injection start time, and an indicator 562b indicating the injection end time are displayed. (Ii) A graph including an imaging timing display unit 563 that is exposure time data is displayed.

The details of the chemical injection performed may be displayed in the history information window 562c. For example, regarding the chemical injection, information on the set injection speed, injection volume, and injection time may be displayed, and in addition, information on the injection speed, injection volume, and injection time that have been performed may be displayed. Information regarding extravasation (for example, extravasation) may be displayed. Data read from an IC tag, for example, a product name of a chemical solution, a manufacturer name, a trademark of a brand name, a trademark of a manufacturer, a logo mark related to a product, and the like may be displayed.

The imaging timing display unit 563 includes a display unit 563a indicating the imaging start time and a display unit 563b indicating the imaging end time. In the imaging timing display unit 563, a current position indicator 563c indicating the imaging timing of the current tomographic image (described later in detail) is displayed. As shown in the figure, the display units 563a and 563b relating to time may be lines displayed in a graph, or simple text data (for example, display such as “0:15”).
It may be a combination thereof. In FIG. 8A, the area 563 is hatched. In this manner, the area 563 may be displayed with a predetermined color different from the color scheme in the graph. Alternatively, the imaging start time and imaging end time may be simply displayed as lines.

The “predetermined input from the operator” for displaying the result graph 560 may be, for example, pressing an image button (not shown) displayed on the screen of the workstation 500. .

Although not limited, the result graph 560 may be displayed in the result display window 555 as shown in FIG. In this case, a history information window 560 ′ showing the injection history data as text data may be displayed in the window 555.

When the operator performs a paging operation while viewing a fluoroscopic image, the workstation 500 moves the current position indicator 563c in the timing display unit 563 along the time axis in conjunction with the paging operation by the paging linkage processing unit 516. Let Specifically, in this example, the current position indicator 563c moves in the right direction or the left direction in conjunction with the paging operation.

As another function of the workstation 500, when the current position indicator 563c in the timing display unit 563 is moved to the left and right, the perspective image is also paged in conjunction with the movement, and at the time indicated by the current position indicator 563c. A function of displaying a corresponding fluoroscopic image may be provided.

The workstation 500 also transmits the created data to an external network or a predetermined device by a function of the data output unit 517 when there is a predetermined input from the operator or at a predetermined timing set in advance. To do. As an example, data corresponding to the result display window 555 or data corresponding to the result graph 560 is output. The data output format may be image data or text data. Moreover, you may output as DICOM data. Text data can also be output in, for example, CSV (Comma Separated Value) format. As an example of the output destination device, PACS may be used.

According to the configuration of the present embodiment configured as described above, the injection history data and the exposure time data are displayed in one viewing screen (specifically, the result graph 560). Image diagnosis can be performed while confirming the correlation between the actual injection result (561) and exposure time (563a, 563b) and the obtained fluoroscopic image (552). Therefore, even if a desired fluoroscopic image is not obtained, it is possible to make a good determination as to what cause it is based on.

In the example shown in FIG. 8A, the time-dependent graph 561 and the timing display unit 563 are displayed on the graph as images, so that the operator can grasp these contents visually.

Moreover, accurate time data based on a time server or the like is given to the injection history data, while accurate time data based on the time server or the like is given to the exposure condition data. By creating a graph corresponding to the time data, it is possible to prevent a deviation between the injection graph and the exposure timing. According to the graph shown in FIG. 8A, for example, the time from the start of injection to the start of imaging can be understood at a glance.

Also, there are the following effects from the viewpoint of setting the imaging plan. That is, in the imaging apparatus 300, imaging is normally started after a predetermined delay time after the start of injection, but this delay time (in other words, at what timing imaging is started) is basically determined. Is predetermined as a default value of the imaging plan. On the other hand, the timing at which a good contrast effect appears after injection of a contrast agent may vary greatly depending on individual differences among patients. In this regard, according to the configuration of the present embodiment, it is possible to reset the next imaging start timing while viewing the result graph 560 as shown in FIG. 8A (an example). Can be further optimized. The ability to optimize the imaging timing in this way means that, for example, useless injection of contrast medium can be reduced, and it is meaningful from the viewpoint of reducing the risk of side effects caused by contrast medium and reducing costs. I can say that.

(Example 1 of other data processing)
The workstation 500 according to an embodiment of the present invention may display a result graph 560 as shown in FIG. 8B. This result graph is obtained when a plurality of (three in this case) imaging operations are performed in one inspection, and three timing display units 563-1 to 563-3 are provided for each imaging operation. It is displayed.

Similarly to the graph of FIG. 8A, each of the timing display units 563-1 to 563-3 shows a display unit 563a indicating the imaging start time, a display unit 563b indicating the imaging end time, and the imaging timing of the current tomographic image. A current position indicator 563c is displayed.

When a plurality of timing display portions 563-1 to 563-3 are displayed in this way, only one timing display portion corresponding to the currently viewed tomographic image is active display, and the others are inactive display. It is also preferable to be configured as described above. Note that as the inactive display, for example, grayout processing that temporarily darkens the brightness of an image may be performed. The active display is a mode in which the target is active when others are grayed out, or a mode in which the target is active by highlighting the target, etc. Also good.

(Example 2 of other data processing)
Further, the workstation 500 may display a result graph 560 as shown in FIG. This graph reflects a history of imaging operations performed in an inspection (detailed below) called a perfusion inspection.

Here, the perfusion inspection will be described below. Conventionally, myocardial blood flow dynamics (perfusion) and perfusion tests on organs in the brain have been performed using an X-ray CT apparatus. In the perfusion examination, dynamic imaging is performed by bolus injection in which a contrast medium is injected in a short time, and a perfusion image is generated by analyzing the obtained dynamic contrast CT data. As a background of such a perfusion inspection, in recent years, X-ray CT capable of taking a four-dimensional image obtained by adding one dimension of time to three dimensions of a space with the increase in the number of rows of X-ray detectors. Devices may have been developed. That is, such an X-ray CT apparatus is capable of observing organ movements and blood flow trends over time. Therefore, in addition to examinations aimed at conventional morphological diagnosis, shaping for morphological diagnosis is also possible. It can also be used for perfusion examination of regions and various organs.

Usually, in an X-ray CT apparatus, imaging is performed after a plurality of imaging plans including various imaging conditions (for example, X-ray irradiation interval, imaging time, tube current supplied to the X-ray tube, etc.) are set in advance. Done. Further, in the case of the perfusion examination, in order to reduce the exposure dose to the patient, the X-ray irradiation interval differs depending on the concentration of the contrast agent in the bloodstream, rather than taking the image at the final interval. It is desirable to set each shooting plan as described above, and the shooting plans with different irradiation intervals are used in combination. For example, when an image for perfusion analysis of 60 seconds is taken, there is a method of scanning continuously for 60 seconds. However, from the viewpoint of exposure dose, shooting may be performed by combining two or three shooting plans. Specifically, since fine data is required from the start of imaging until the peak of contrast agent concentration, continuous scanning or fine intermittent scanning (for example, at intervals of 1 second) is performed. In the middle stage where the concentration of the contrast agent gradually decreases beyond the peak, an intermediate intermittent scan (for example, every 2 seconds) is performed with a small interval. At the end of the period when there is almost no change in contrast agent, intermittent scanning (for example, every 3 seconds) is performed with a large interval. Such a shooting plan is often set.

However, the speed at which the contrast agent circulates in the body varies from patient to patient, and in order to scan without missing a period in which the concentration of the contrast agent changes drastically, it is necessary to set a longer imaging time for each imaging plan. I do not get. On the other hand, in view of the problem of exposure dose, it is desirable to set an appropriate imaging plan according to the patient.

Referring to FIG. 9 again, in the result graph 560, a time-dependent graph 561 is displayed as in the above-described embodiment, and the time sequence data 572 of the perfusion inspection (in other words, the imaging plan) is displayed as the exposure time data. Information) is displayed. Further, a time density curve (TDC) 571 is displayed so as to overlap the data 572 of the time sequence.

According to such a configuration, referring to the result graph 560, while confirming the time sequence data 572 of the current perfusion test and the actual time density curve (TDC) 571, the next imaging plan is more patient-specific. It can be suitable for.

[C: Specific configuration of each part of chemical injection device]
(Chemical injection device)
Specifically, the chemical injection device 100 may be configured as shown in FIG. The chemical injection device 100 includes a two-tube injection head 110 that is rotatably held on an upper portion of a movable stand 111. In this injection head 110, as an example, a syringe is attached to each recess 120 a via syringe adapters S 121 and S 122 that hold the cylinder flange of the syringe and the vicinity thereof.

The console 150 is connected to the injection head 110 by a cable 102 as an example. The display unit 151 is a touch panel display. A plurality of physical buttons are arranged as the operation panel 159. For example, a home button (physical button) may be provided on the front of the console, and when the home button is pressed, a home screen on which a plurality of icons are arranged may be displayed on the screen. The hand unit 157 is wired to the console 150 and used on a work table. Of course, the hand unit 157 may be connected in a wireless manner.

The chemical injection device 100 includes a PACS (Picture Archiving and Communication Systems), a HIS (Hospital Information System), a RIS (Radiology Information System), a workstation, an image interpretation device, or a part of the network. A wired or wireless connection may be used. here,
(P1) The chemical injection device may be connected to a medical expense accounting system, or may be connected to such a medical expense accounting system via a network.
(P2) The sensor unit for detecting extravasation of the drug solution may be connected to the injection head (in its example, the control unit) by wire or wirelessly.
(P3) The sensor unit for detecting extravasation of the chemical solution may be connected to a console (in its example, a control unit thereof) by wire or wirelessly.
(P4) Information such as a creatinine value indicating renal function is sent to the injector from a fixed or portable hematology analyzer device in the medical network (that is, the drug solution injector receives such information). When the value is high due to GFR, the injection is stopped. If a side effect occurs after injection at the physician's discretion in the gray zone, the presence or absence of the side effect is also sent to the workstation as a record, similar to the record for leakage. Such a configuration may be adopted.

(Syringe)
Specifically, the syringe may be as shown in FIGS. 11A (a) and (b), and this syringe is for 100 ml, for example. This syringe includes a cylinder member S501 and a piston member S502, and the cylinder flange S501a of the cylinder member S501 has an I-cut contour shape in which both sides of the flange are cut straight, and is formed on the outer periphery of the flange S501a. Has two notches S505 (only one is shown). The conduit portion S501b at the tip of the cylinder member S501 may be for luer lock connection having two cylindrical portions on the inner side and the outer side that are arranged coaxially. As shown in FIG. 11A (b), a ring-shaped protrusion S501c may be formed on the rear surface of the cylinder flange S501a.

The other of the two syringes may be a syringe as shown in FIGS. 11B (a) and (b), and this syringe is for 200 ml, for example. Similarly to the above syringe, this syringe also includes a cylinder member S501 and a piston member S502, and the cylinder flange S501a of the cylinder member S501 may have an I-cut contour. Two notches S505 (only one is shown) are formed on the outer peripheral portion of the cylinder flange S501a. The conduit portion S501b at the tip of the cylinder member S501 may be for luer lock connection having two cylindrical portions on the inner side and the outer side that are arranged coaxially. As shown in FIG. 11B (b), a ring-shaped protrusion S501c and a plurality of ribs S501d extending outward from the protrusion S501c may be formed on the rear surface of the cylinder flange S501a.

In FIG. 11B, the cylinder flange S501a is shown with both the notch S505 and the rib S501d formed, but only one of them is formed (for example, the notch S505 is formed). May not be). Further, the rib S501d may have a shape in which only two upper and lower ribs are left out of the plurality of ribs arranged in the vertical direction in the figure, and the other ribs are omitted. Such rib groups are formed on the left and right sides of the flange portion in the illustrated example (FIG. 11B (b)), but only one of them may be provided.

An example of the extension tube S508 may be as shown in FIG. 11C. The extension tube S508 has three tubes connected via a T-shaped connector. Connection connectors S509 and 509 are attached to the end of the tube connected to each syringe, and another form of connection connector S510 is attached to the end of the tube toward the patient. Each connection connector S509 may have a cylindrical portion S509a having a screw portion S509b formed at the tip, and may be connected to a syringe conduit portion S501b by a luer lock method. Further, the connection connector S509 may have a function as a one-way valve, in particular, as disclosed in WO2012 / 060365. The connection connector S510 may be connected to a catheter or an indwelling needle (not shown), for example.

(Extension tube)
An example of the extension tube S508 may be as shown in FIG. 11C. The extension tube S508 has three tubes connected via a T-shaped connector. Connection connectors S509 and S509 are attached to the end of the tube connected to each syringe, and another form of connection connector S510 is attached to the end of the tube toward the patient. Each connection connector S509 may have a cylindrical portion S509a having a screw portion S509b formed at the tip, and may be connected to a syringe conduit portion S501b by a luer lock method. Further, the connection connector S509 may have a function as a one-way valve, in particular, as disclosed in WO2012 / 060365. The connection connector S510 may be connected to a catheter or an indwelling needle (not shown), for example.

(Ceiling suspension type holding arm)
The ceiling-suspended holding arm 111 ′ may be one that allows a combination of horizontal rotation and vertical movement as shown in FIG. 12A. In this example, it has a base part attached to the ceiling and a plurality of articulated arm parts extending therefrom, and the injection head 110 is provided with a support bar (in one example, in the vertical direction) on the terminal side of the arm part. It is held by the extending rod-shaped member.

(Sub display)
As shown in FIG. 12B, a chemical liquid injector may be provided in which a sub-display 149 is attached to a part of the holding arm 111 ′, specifically, in the vicinity of a portion holding the injection head 110. This sub-display 149 is electrically connected to the injection head 110, or is electrically connected to the console 150, or is electrically connected to the imaging device 300, and can display various types of information related to drug injection. It may be possible. The sub display 149 may be a touch panel display, or may be a simple display without a touch panel function.

Note that such a sub-display 149 may be provided directly on a part of the injection head 110. For example, such a sub display 149 may be provided on the side or rear of the casing of the injection head 110. Alternatively, the sub display 149 may be attached to a part of the movable stand 111. Note that a control unit (not shown) may be mounted on the movable stand 111 separately from the injection head 110.

As mentioned above, although this invention was demonstrated with reference to some forms, this invention is not limited to the said content, A various change is possible.
(B1) In the above description, an example has been described in which the time-dependent graph 561 (for example, FIG. 8A) based on the data measured during the chemical solution injection is displayed. The time graph 561 is not expressed in a curved line shape, but may be expressed as a plot of estimated pressure values measured at predetermined time intervals.
(B2) Regarding the imaging timing display unit 563, the time display units 563a and 563b are displayed as broken lines in FIG. Further, “a” sec, “b” sec, or the like may be given on the time axis corresponding to each time display portion 563a, 563b. The current position indicator 563c may not be displayed in the timing display unit 563. Further, the current position indicator 563c may be configured not to be interlocked with the paging operation.

(B3) In the above description, the X-ray CT scanner has been mainly described as an example. However, the workstation may display one or more medical images selected from MRI image data, PET image data, MRA image data, and the like.
(B4) Although the PACS 702 is provided in the system of FIG. 4A, a configuration without the PACS 702 may be used.
The workstation 500 may have a time synchronization function with an NTP (Network Time Protocol) server.
(B5) Naturally, the various forms described above can be combined in various ways as long as the contents do not conflict.

(D7-1) As an operation for releasing air from the extension tube, the piston drive mechanism on the A syringe (contrast medium) side is operated, and then the piston drive mechanism on the B syringe (saline) side is operated. You may let them. Alternatively, the piston drive mechanism on the A syringe (contrast medium) side and the piston drive mechanism on the B syringe (physiological saline) side may be operated simultaneously.
(D7-2) In the case of a configuration like the extension tube of FIG. 11C, a liquid pool cap may be provided on the connector S510 at the end of the tube. The liquid storage cap receives the chemical solution from the tube and prevents the chemical solution from dripping on the floor or other medical devices. When the chemical liquid enters the gaps between the devices, it may cause a failure of the device or an erroneous operation by the operator. However, according to such a configuration, occurrence of such a problem can be reduced.
(D7-3) When the T tube portion of the extension tube is an extension tube having a member as disclosed in Japanese Patent Application Laid-Open No. 2011-217796, the mixing of the chemicals when performing the chemical injection is more effective. It can be carried out and an excellent contrast effect can be obtained.

(Display control with display controller unit)
As shown in FIG. 13, this system may include a display control unit (DCU) 1201 that is operatively connected to the control unit 501a and controls display contents in accordance with a command signal from the control unit. The DCU 1201 is operably connected to the display 1203 and controls display contents. The DCU 1201 may be a display control IC unit or the like prepared separately from the control unit 501a. The DCU 1201 displays various images including a graphical user interface (GUI) on the display 1203. The DCU 1201 may cause the display 1203 to display the remaining amount of the chemical solution, the injection speed, the injection pressure, the programmed injection amount, and the like. The DCU 1201 may have GUI data. The DCU 1201 can cause the display 1203 to display all or part of the various images described above. There may be one or a plurality of displays, and the display can be arranged at any position in the system. The DCU 1201 may be provided as one or a plurality of components selected from the imaging device 300, the workstation 500, the chemical solution injector 100, and other computers.

(About the injection result screen)
FIG. 14 is a pressure graph (time is on the horizontal axis and pressure is on the vertical axis) when a certain time has elapsed after the start of the insertion. For example, when the contrast medium is injected in the first phase from 0:00 sec to 0:30 sec and the physiological saline is injected in the second phase thereafter, the current position is shown in the pressure graph as shown in the figure. Indicators 581 and 582 for displaying may be displayed.

In the example of this figure, since the first phase is over and the second phase is entered, the indicator 582 indicates the current position. As time passes, the indicator 582 moves to the right, and the pressure graph expands accordingly. Thus, when the indicator 582 indicating the current position is displayed on the pressure curve, the operator can easily visually grasp the current pressure.

Similarly, the indicator 581 is displayed for the first-phase contrast medium injection. The indicator 581 stops at the position where the first phase is finished (0:30), that is, the position where the pressure curve and the vertical axis passing through the time 0:30 intersect, and remains displayed. . It may be configured such that the colors of the indicators 581 and 582 are different between the injection of the contrast agent (first drug solution) and the injection of the physiological saline (second drug solution) (including the case of the same color but different shades). . FIG. 15 shows a display example of the indicator, where (a) is an indicator 581 for contrast medium injection, and (b) is an indicator 582 for physiological saline injection. Although simultaneous injection is not performed in FIG. 14, if simultaneous injection is performed, for example, as shown by indicator 583, one of the indicators divided in half may be displayed in the same manner as indicator 581, and the other may be displayed in the same manner as indicator 582. Good.

14 and 15 illustrate an inverted triangular indicator, but the shape of the indicator is not limited to this. Various forms such as a circle, an ellipse, an upward triangle, a rectangle, a polygon, and a star can be used. Also, the indicator in the case of simultaneous injection is not necessarily limited to the display mode as shown in FIG. 15C, and any indicator that can be distinguished from the indicators 581 and 582 can be used. Also good. For example, the color or density may be differentiated from that of the indicators 581 and 582.

Such pressure graph data is transmitted from the chemical injection device 300 to an external server or workstation, and the workstation 500 is configured to display the pressure graph together with a fluoroscopic image captured by the imaging device. Is also preferable. In this case as well, the pressure graph and the fluoroscopic image are associated with each other as described above.

The technical matters disclosed as the predetermined embodiments of the present specification can be combined with other embodiments without departing from the spirit of the present invention.

(Appendix)
This application discloses the following invention. In the following, the reference numerals of the drawings are attached for easy understanding of the description, but these do not limit the present invention.
1. Data processing used by being directly or indirectly connected to an imaging system including at least an imaging device (300) for capturing a fluoroscopic image of a patient and a chemical solution injection device (100) for injecting at least a contrast medium as a chemical solution into the patient An apparatus (500) comprising:
A control unit (501a) and a display unit (502);
The control unit (501a)
(A) an image data acquisition unit (511) for acquiring data (552) of a fluoroscopic image of a patient imaged by the imaging device;
(B) an exposure time data acquisition unit (512) for acquiring exposure time data in an imaging examination performed by the imaging device;
(C) an injection history data acquisition unit (513) that acquires data of an injection history of a chemical injection performed on the patient;
(D) creating a viewing screen (551) displaying one or more of the fluoroscopic images and displaying the viewing screen on the display unit;
(E) a graph with either the horizontal axis or the vertical axis as the time axis, the injection history data (561) and the exposure time data (563; specifically, the injection history data A result graph (560) displayed together with the corresponding corresponding exposure time data) and displayed on the display unit, a result graph creation unit (506);
A data processing apparatus (500) comprising:

2. In the result graph (560),
As the injection history data, a time-dependent graph (561) in which the horizontal axis is time and the vertical axis is the injection pressure or injection speed of the chemical measured in the chemical injection is displayed.
Data processing device.

3. In the result graph (560),
A data processing apparatus in which an imaging timing display section (563) that is a range from an imaging start time (563a) to an imaging end time (563b) is displayed as the exposure time data (563).

3-1. In the result graph,
As the data of the injection history, the horizontal axis is time, and the vertical axis is a time-course graph indicating the injection pressure or injection speed of the chemical solution measured in the chemical injection (the time axis and the axis indicating the injection pressure or injection speed of the chemical solution) Graph)
As the exposure time data, an imaging timing display section that is a range from the imaging start time to the imaging end time is displayed,
A data processing device in which time information included in the injection history data is synchronized with time information included in the exposure time data.

3-2. The synchronization is a data processing apparatus implemented using an NTP (Network Time Protocol) server.

According to such a configuration, since the time information of the injection history data and the exposure time data is synchronized, it is possible to prevent, for example, a shift between the time graph and the exposure time data. Giving accurate time information based on an NTP server or the like may be performed by a device or function that generates injection history data and a device or function that generates exposure time data, respectively.

4). A data processing apparatus in which a plurality of imaging operations are performed in a single examination, and a plurality of the imaging timing display units (563-1 to 563-3) are displayed corresponding to each imaging operation.

5. A data processing apparatus in which only one selected from the plurality of imaging timing display units is active display, and the other is inactive display.

6). A data processing apparatus in which a current position indicator (563c) indicating the imaging time of the currently displayed fluoroscopic image is displayed in the imaging timing display unit (563).

7). further,
(F) A paging interlocking processing unit (516) that moves the current position indicator (563c) along the time axis when the fluoroscopic image is paged according to a predetermined input from an operator. , Data processing equipment.

8-1. A data processing apparatus, wherein data of a time sequence of a perfusion inspection performed by an imaging apparatus is displayed as the exposure time data in the result graph.
8-2. The data processing apparatus according to any one of the above, wherein a time density curve indicating a contrast effect is displayed in the result graph together with or independently of a time sequence data of a perfusion examination.

The perfusion inspection time sequence data may be displayed outside the result graph in the interpretation screen, and the time sequence data is displayed as numerical information, as a visualized image, or as a combination thereof. May be.

9. At least a part of the browsing screen (551)
A data processing apparatus, wherein at least one selected from a chemical solution injection speed, a chemical solution injection amount, and a chemical solution injection time is displayed as text data as the injection history data. At least part of the browsing screen (551), as information on the injection history, information on the used chemicals, for example, the name of the contrast agent, the manufacturer of the contrast agent, the iodine concentration of the contrast agent, and the presence or absence of extravasation A data processing device in which information relating to the above is displayed as text data or image data.

10. At least a part of the browsing screen (551)
A data processing apparatus in which at least one of an imaging start time and an imaging end time is displayed as text data as the exposure time data.

11. further,
(G) a data output unit (517) for outputting at least one data selected from the fluoroscopic image data (552), the injection history data (561), and the exposure time data (563) to the outside; A data processing apparatus.

12 The data output unit (517) is a data processing device that outputs the data to the outside as DICOM (Digital Imaging and Communication in Medicine) data.

13. A data processing device;
An imaging device (300) for imaging fluoroscopic image data of a patient;
A liquid injector (100) for injecting at least a contrast medium as a liquid into a patient;
A medical examination system (1000) comprising:

14 Furthermore, a medical examination system provided with PACS (Picture Archiving and Communication Systems) which is an image storage communication system.

15. Data processing used by being directly or indirectly connected to an imaging system including at least an imaging device (300) for capturing a fluoroscopic image of a patient and a chemical solution injection device (100) for injecting at least a contrast medium as a chemical solution into the patient A computer program for an apparatus (500) comprising:
One computer or multiple computers
(A) an image data acquisition unit (511) for acquiring data (552) of a fluoroscopic image of a patient imaged by the imaging device;
(B) an exposure time data acquisition unit (512) for acquiring exposure time data in an imaging examination performed by the imaging device;
(C) an injection history data acquisition unit (513) that acquires data of an injection history of a chemical injection performed on the patient;
(D) creating a viewing screen (551) displaying one or more of the fluoroscopic images and displaying the viewing screen on the display unit;
(E) A graph having either the horizontal axis or the vertical axis as a time axis, and a result graph (556) in which the injection history data (561) and the exposure time data (563) are displayed together. ) And a result graph creating unit (506) for displaying on the display unit;
A computer program that makes it work.

16. One computer or a plurality of computers
(F) When the fluoroscopic image is paged according to a predetermined input from the operator, a paging interlocking processing unit (516) that moves the current position indicator (563c) along the time axis in conjunction with it,
A computer program that makes it work.

17. One computer or a plurality of computers
(G) a data output unit (517) for outputting at least one data selected from the fluoroscopic image data (552), the injection history data (561), and the exposure time data (563) to the outside; ,
A computer program that makes it work.

18. 13. above. In the medical examination system described,
The medical examination system in which the syringe mounted on the chemical solution injector is a prefilled type of syringe filled with a chemical solution in advance.

19. The medical examination system according to the above, wherein the syringe is a syringe with an IC tag.

20. The syringe is
It has a hollow cylinder member and a piston member slidably inserted in it,
The medical examination system according to the above, wherein at least one notch is formed in a cylinder flange at an end of the cylinder member.

21. The medical examination system according to the above, wherein the drug solution in the syringe is a contrast medium.

This application also discloses the following inventions:
A1. An imaging device (300) for capturing a fluoroscopic image of a patient;
A liquid injector (100) for injecting at least a contrast medium as a liquid into a patient;
A system comprising at least
One or a plurality of control units provided in an imaging device, a chemical solution injection device, or other equipment, and one or a plurality of display units present in a predetermined arbitrary manner in the system,
The controller is
(A) an image data acquisition unit (511) for acquiring data (552) of a fluoroscopic image of a patient imaged by the imaging device;
(B) an exposure time data acquisition unit (512) for acquiring exposure time data in an imaging examination performed by the imaging device;
(C) an injection history data acquisition unit (513) that acquires data of an injection history of a chemical injection performed on the patient;
(D) creating a viewing screen (551) displaying one or more of the fluoroscopic images and displaying the viewing screen on the display unit;
(E) A graph having either the horizontal axis or the vertical axis as a time axis, and a result graph (560) in which the injection history data (561) and the exposure time data (563) are displayed together. ) And a result graph creating unit (506) for displaying on the display unit;
Having a system.

A2. An imaging device (300) for capturing a fluoroscopic image of a patient;
A liquid injector (100) for injecting at least a contrast medium as a liquid into a patient;
A system comprising at least
One or a plurality of control units provided in an imaging device, a chemical solution injection device, or other equipment, and a display unit (502),
The controller is
Obtaining patient perspective image data (552) imaged by the imaging device;
-Obtaining exposure time data in an imaging examination carried out by the imaging device;
-Obtaining infusion history data of medicinal fluid infusions performed on the patient;
-Creating a viewing screen (551) displaying one or more of the fluoroscopic images and displaying on the display unit;
A result graph (560) in which either the horizontal axis or the vertical axis is a time axis, and the injection history data (561) and the exposure time data (563) are displayed together; A system configured (programmed) to be created and displayed on the display unit.

A3. A data processing method in a medical system,
(A) obtaining data of a fluoroscopic image of a patient imaged by an imaging device;
(B) obtaining exposure time data in an imaging examination performed by the imaging device;
(C) obtaining data of an injection history of a chemical injection performed on the patient;
(D) creating a browsing screen (551) displaying one or more of the fluoroscopic images and displaying the browsing screen on the display unit;
(E) A graph having either the horizontal axis or the vertical axis as a time axis, and a result graph (556) in which the injection history data (561) and the exposure time data (563) are displayed together. ) And displaying on the display unit;
Having a method.

A4. A computer program for causing a computer to perform the above method.

A5-1. An imaging device (300) for capturing a fluoroscopic image of a patient;
A liquid injector (100) for injecting at least a contrast medium as a liquid into a patient;
A system comprising at least
A system having a graphical image including a result graph (560) in which the injection history data (561) and the exposure time data (563) are displayed together;
A5-2. The system, wherein the graphical image further comprises a tomographic image of one or more views.
A5-2. A system in which the graphical image is displayed on a display unit.
A5-3. A system in which a part or all of the injection history data (561), the exposure time data (563), and the tomographic image are associated with each other.

Here, the association may be performed when, for example, they match each other based on the imaging time of the imaging device and the injection time of the injection device. Further, a test identifier for uniquely identifying a test and a patient identifier for uniquely identifying a patient (for example, a patient name, date of birth, sex, patient number, etc.) may be used. For a perspective image, a DICOM tag may be used. Two or all of the associated fluoroscopic image data, drug solution injection information data, injection result data, and the like may be stored in a storage device in the system.

In the present invention expressed as described above, the above-described 2. Needless to say, the following inventions can be appropriately combined.

A6. A method for generating an interpretation screen for interpreting a fluoroscopic image of a patient obtained by performing contrast imaging and performing fluoroscopic imaging,
a: acquiring data of a fluoroscopic image of a patient;
b: creating data of contrast medium injection conditions;
c: (i) acquiring exposure condition data of the imaging apparatus or injection result data (for example, a pressure graph or TDC) corresponding to the actually performed chemical injection;
d: generating a radiogram interpretation screen including fluoroscopic image data and corresponding exposure condition data or injection result data (eg, association by time, association by ID, etc.);
A method for generating a screen for interpretation.

A7.1 on one or more computers
a: acquiring data of a fluoroscopic image of a patient;
b: creating data of contrast medium injection conditions;
c: (i) acquiring exposure condition data of the imaging apparatus or injection result data corresponding to the actual chemical injection;
d: generating a radiogram interpretation screen including fluoroscopic image data and corresponding exposure condition data or injection result data (eg, association by time, association by ID, etc.);
A program for generating a screen for interpretation.

DESCRIPTION OF SYMBOLS 100 Chemical injection device 102 Cable 110 Injection head 120a Recessed part (syringe holding part)
111 Movable stand 130 Piston drive mechanism (pressure rising mechanism)
144 Control unit 145 Reader / writer (may be a reader only)
146 Storage unit 150 Console (injection control unit)
151 Display unit (display device)
153 Control unit 154 Storage unit 157 Hand unit 159 Operation panel 200 Syringe 221 Cylinder member 222 Piston member 225 IC tag 230 Extension tube 231a to 231c Tube 300 Imaging device 303a Control unit 300b Imaging unit 304 Bed 500 Workstation (data processing device)
501a Control unit 501b Storage unit 502 Display unit 503 Computer main body 505, 506 Input device 551 Viewing screen 552 Perspective image 555 Result display window 560 Result graph 561 Time graph 562a, 563b Indicator 562c History information windows 563, 563-1 to 563-3 Imaging timing display unit 563a Display unit 563b indicating imaging start time Display unit 563c indicating imaging end time Current position indicator 571 TDC
581, 582, 583 Indicator S121, S122 Syringe adapter 1201 Display control unit (DCU)
1203 display

Claims (24)

1. A data processing device used by being directly or indirectly connected to an imaging system including at least an imaging device that captures a fluoroscopic image of a patient and a drug solution injection device that injects at least a contrast medium as a drug solution into the patient,
   A control unit and a display unit;
   The controller is
   (A) an image data acquisition unit that acquires data of a fluoroscopic image of a patient imaged by the imaging device;
   (B) an exposure time data acquisition unit that acquires exposure time data in an imaging examination performed by the imaging device;
   (C) an injection history data acquisition unit that acquires data of an injection history of chemical injection performed on the patient;
   (D) creating a viewing screen displaying one or more of the fluoroscopic images and displaying the viewing screen on the display unit;
   (E) A graph having either the horizontal axis or the vertical axis as a time axis, and a result graph in which the injection history data and the exposure time data are displayed together is created on the display unit. A result graph creation section to be displayed;
   A data processing apparatus.
2. In the result graph,
   As the injection history data, a time axis is displayed in which the horizontal axis is time, and the vertical axis is the injection pressure or injection rate of the chemical measured in the chemical injection.
   The data processing apparatus according to claim 1.
3. In the result graph,
   As the exposure time data, an imaging timing display section that is a range from an imaging start time to an imaging end time is displayed.
   The data processing apparatus according to claim 1 or 2.
4. In the result graph,
   As the data of the injection history, a time axis having a time axis and an axis indicating the injection pressure or injection speed of the chemical solution measured in the chemical solution injection,
   As the exposure time data, an imaging timing display section that is a range from the imaging start time to the imaging end time is displayed,
   The time information included in the injection history data and the time information included in the exposure time data are synchronized,
   The data processing apparatus according to claim 1.
5. The data processing apparatus according to claim 4, wherein the synchronization is performed using an NTP (Network Time Protocol) server.
6. A plurality of imaging operations are performed in one inspection, and a plurality of the imaging timing display units are displayed corresponding to each imaging operation.
   The data processing apparatus according to claim 3.
7. The data processing apparatus according to claim 6, wherein only one selected from the plurality of imaging timing display units is active display, and the other is inactive display.
8. The data processing apparatus according to any one of claims 3 to 7, wherein a current position indicator indicating an imaging time of a currently displayed fluoroscopic image is displayed in the imaging timing display unit.
9. further,
   (F) When the fluoroscopic image is paged in accordance with a predetermined input from an operator, the paging linkage processing unit moves the current position indicator along the time axis in conjunction with the paging image.
   The data processing apparatus according to claim 8.
10. In the result graph,
    As the exposure time data, data of the time sequence of the perfusion inspection performed by the imaging device is displayed.
    The data processing apparatus according to any one of claims 1 to 9.
11. The data processing device according to any one of claims 1 to 10, wherein a time density curve indicating a contrast effect is displayed in the result graph.
12. At least part of the browsing screen,
    As the injection history data, at least one selected from the injection rate of the chemical solution, the injection amount of the chemical solution, information on the used chemical solution, and the injection time of the chemical solution is displayed as text data.
    The data processing apparatus according to any one of claims 1 to 11.
13. At least part of the browsing screen,
    As the exposure time data, at least one of an imaging start time and an imaging end time is displayed as text data.
    The data processing apparatus according to any one of claims 1 to 12.
14. further,
    (G) a data output unit that outputs at least one data selected from the fluoroscopic image data, the injection history data, and the exposure time data to the outside;
    The data processing apparatus according to any one of claims 1 to 13.
15. The data output unit outputs the data to the outside as DICOM (Digital Imaging and Communication in Medicine) data.
    The data processing apparatus according to claim 14.
16. A data processing device according to any one of claims 1 to 15;
    An imaging device for imaging fluoroscopic image data of a patient;
    A chemical injection device for injecting at least a contrast medium as a chemical into a patient;
    A medical examination system comprising:
17. The medical examination system according to claim 16, further comprising a PACS (Picture Archiving and Communication Systems) which is an image storage communication system.
18. A computer program for a data processing apparatus used directly or indirectly connected to an imaging system including at least an imaging apparatus for capturing a fluoroscopic image of a patient and a chemical liquid injection apparatus for injecting at least a contrast medium as a chemical liquid into the patient Because
    One computer or multiple computers
    (A) an image data acquisition unit that acquires data of a fluoroscopic image of a patient imaged by the imaging device;
    (B) an exposure time data acquisition unit that acquires exposure time data in an imaging examination performed by the imaging device;
    (C) an injection history data acquisition unit that acquires data of an injection history of chemical injection performed on the patient;
    (D) creating a viewing screen displaying one or more of the fluoroscopic images and displaying the viewing screen on the display unit;
    (E) A graph having either the horizontal axis or the vertical axis as a time axis, and a result graph in which the injection history data and the exposure time data are displayed together is created on the display unit. A result graph creation section to be displayed;
    A computer program that makes it work.
19. One computer or a plurality of computers,
    (F) When the fluoroscopic image is paged according to a predetermined input from the operator, a paging interlocking processing unit that moves the current position indicator along the time axis in conjunction with the paged image,
    The computer program according to claim 18, wherein the computer program causes the program to function.
20. One computer or a plurality of computers,
    (G) a data output unit that outputs at least one data selected from the fluoroscopic image data, the injection history data, and the exposure time data to the outside;
    The computer program according to claim 18 or 19, which causes the program to function.
21. The medical examination system according to claim 16,
    The medical examination system in which the syringe mounted on the chemical solution injector is a prefilled type of syringe filled with a chemical solution in advance.
22. The medical examination system according to claim 21, wherein the syringe is a syringe with an IC tag.
23. The syringe is
    It has a hollow cylinder member and a piston member slidably inserted in it,
    The medical examination system according to claim 21 or 22, wherein at least one notch is formed in a cylinder flange at an end of the cylinder member.
24. The medical examination system according to any one of claims 21 to 23, wherein the drug solution in the syringe is a contrast agent.
    
    

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