JP6765047B2 - Injection system, data processing equipment and injection equipment - Google Patents

Description

The present invention relates to an injection system including a radiation detection device, and a data processing device and an injection device for processing radiation data.

The timing data of the exposure time in the imaging test and the injection history data of the drug solution injection are acquired, and the injection result graph in which the injection history data and the timing data of the exposure time are displayed together is created and displayed on the display unit. There is a known data processing device (Patent Document 1). This data processing device acquires the timing data of the exposure time created by the imaging device from the storage unit of the imaging device or PACS (Picture Archiving and Communication Systems).

As the timing data of the exposure time, there are data of the imaging start time and data of the imaging end time. Since the injection start time of the contrast medium and the imaging start time may not match, it is preferable that the injection result graph is created based on common time data. For example, as time data given by the imaging device, time data of an NTP (Network Time Protocol) server, time data of another time server whose time is set based on the NTP server, and time set based on these servers. There are time data of a predetermined device and time data of an imaging device whose time is set based on these servers, and these can be used.

International Publication No. 2014/16821

However, few medical institutions have introduced NTP servers, and as a result, the use of the injection result graph has been limited. On the other hand, the injection device and the imaging device each create time data. However, when the time data is not synchronized, the time difference between the injection device and the imaging device is large. Therefore, it was not possible to accurately associate and use the injection start timing and exposure timing data.

In order to solve the above problems, the injection system as an example of the present invention includes an injection device for injecting a chemical solution and a radiation detection device for detecting radiation and transmitting the first radiation data to the injection device. The injection device includes a history creation unit that creates injection history data of the drug solution, and a data creation unit that creates second radiation data in which the first radiation data is associated with time data common to the injection history data. It is characterized by.

Further, a data processing device as another example of the present invention includes a data acquisition unit that acquires injection history data of a drug solution injected into a subject and radiation data associated with time data common to the injection history data. It is characterized by including an exposure determination unit that determines the exposure timing from the radiation data and a graph creation unit that synthesizes the exposure timing with the injection history data to create an injection result graph.

Further, a data processing device as another example of the present invention includes a data acquisition unit that acquires injection history data of a drug solution injected into a subject and radiation data associated with time data common to the injection history data. It is characterized by including a graph creating unit for creating an injection result graph by synthesizing the radiation data with the injection history data.

Further, the injection device as another example of the present invention is an injection device that injects a chemical solution, and has an interface for receiving the first radiation data from the radiation detection device and a first unit in which the first radiation data is associated with time data. 2. The interface includes a data creation unit for creating radiation data, and the interface is characterized by transmitting the second radiation data to an external device.

This allows the injection device to create radiation data associated with time data and send it to an external device. Further, the injection history data and the exposure timing or radiation data can be used based on the common time data.

Further features of the present invention will become apparent from the description of the following examples exemplified by reference to the accompanying drawings.

It is a schematic overall view of the data processing system which concerns on 1st Embodiment. It is a schematic block diagram of the data processing system which concerns on 1st Embodiment. It is a graph which shows the radiation amount detected by a radiation detection apparatus. It is a flowchart for demonstrating the data processing which concerns on 1st Embodiment. It is an injection result graph created by a data processing apparatus. It is a schematic overall view of the data processing system which concerns on 2nd Embodiment. It is a schematic block diagram of the data processing system which concerns on 2nd Embodiment. It is a flowchart for demonstrating the data processing which concerns on 2nd Embodiment.

Hereinafter, exemplary embodiments for carrying out the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative positions of the components, etc. described in the following embodiments are arbitrary, and can be changed according to the configuration of the device to which the present invention is applied or various conditions. Further, unless otherwise specified, the scope of the present invention is not limited to the embodiments specifically described below.

[First Embodiment]
As shown in FIG. 1, the data processing system 1000 includes an injection system 100 and a radiation imaging device 150 that captures a fluoroscopic image of a subject. The injection system 100 includes an injection device 110 for injecting a drug solution, and a radiation detection device 190 for detecting radiation and transmitting first radiation data to the injection device 110. Examples of the radiation imaging device 150 include various medical imaging devices such as a CT (Computed Tomography) device and a CT angio device. Further, the data processing system 1000 includes an external storage device 180 such as PACS, RIS (Radiology Information System), and HIS (Hospital Information System), and a data processing device 130 such as an image generator, a computer, and a workstation. There is.

The radiation imaging device 150, the injection device 110, and the external storage device 180 are each wired or wirelessly connected via a LAN (Local Area Network) or a dedicated line, and various data can be transmitted and received to each other. This data can be created in accordance with DICOM (Digital Imaging and Communications in Medicine), which is a standard for digital medical images. The injection device 110 is wired or wirelessly connected to the radiation detection device 190. For example, the injection device 110 is wirelessly connected to the radiation detection device 190 according to the Bluetooth (registered trademark) standard. Further, the injection device 110 is connected to the data processing device 130 via a LAN cable.

[Radiation imaging device]
A CT device will be described as an example of the radiation imaging device 150. The radiation imaging device 150 includes an imaging unit 151 that exposes a patient to X-rays in order to capture a fluoroscopic image of a subject, a control device 160 connected to the imaging unit 151, and a display 159 connected to the control device 160. It has. The imaging unit 151 has a sleeper 153 on which the subject is placed, an X-ray source for irradiating the subject with X-rays (not shown), and an X-ray detector (not shown) for detecting the X-rays transmitted through the subject. There is. Then, the imaging unit 151 exposes the subject to X-rays and back-projects the inside of the subject's body based on the X-rays transmitted through the subject to capture a fluoroscopic image of the subject. The control device 160 and the display 159 can also be integrally configured.

As shown in FIG. 2, which is a block diagram, the control device 160 includes an image pickup control unit 161, a storage unit 162, and an interface (I / F) 163. The image pickup control unit 161 includes a CPU (Central Processing Unit), an FPGA (Field-Programmable Gate Array), a drive circuit, and the like.

For example, the imaging control unit 161 imparts identification information (image ID) to the fluoroscopic image, imparts timing data of the exposure time to the fluoroscopic image, and externally transmits the fluoroscopic image data (injection device 110, data processing device 130). Alternatively, transmission to an external storage device 180), transmission of exposure time timing data to the outside, transmission of exposure amount data to the outside, transmission of identification information of the performed imaging to the outside, and par. It is possible to transmit the time sequence data of the imaging operation for fusion inspection to the outside. Then, the imaging control unit 161 stores the fluoroscopic image data, the exposure time data, and the like in the storage unit 162.

The storage unit 162 has a RAM (Random Access Memory) which is a system work memory for operating the CPU, a ROM (Read Only Memory) in which a control program or system software is stored, a hard disk drive, and the like.

The radiation imaging device 150 is connected to the external storage device 180 and the data processing device 130 via the interface 163. This interface may be a separate interface for each device, or may be the same interface. Further, in order to link the injection operation and the imaging operation, the radiation imaging device 150 can be connected to the injection device 110 via the interface 163. The control device 160 includes a user interface (not shown) that functions as a data input device.

The exposure time data created by the radiation imaging apparatus 150 includes, for example, exposure start time data, exposure end time data, and time elapsed time data from the start to the end of exposure. The exposure time data includes time data of the NTP server, time data of other time servers whose time is set based on the NTP server, and time data of a predetermined device whose time is set based on these servers. And it can be created based on the time data of the radiation imaging device 150 whose time is set based on these servers. When multiple imagings are performed in one inspection, time data of each exposure is created.

[Injection device]
Returning to FIG. 1, which shows the entire system, the injection device 110 will be described. The injection device 110 includes an injection head 111 on which two syringes (not shown) filled with a chemical solution (for example, a contrast medium and a physiological saline) are mounted, and a control device (console) 120 for controlling the injection head 111. Is equipped with. The console 120 includes a touch panel 129 that functions as an operation unit and a display unit that displays the injection status of the chemical solution and the like. The console 120 and the injection head 111 are wiredly connected via a metal cable, an optical cable, or the like. The console 120 and the injection head 111 may be wirelessly connected, and may be connected by, for example, a wireless method using a frequency band of 2.4 GHz to 5 GHz. Further, a remote control device (not shown) such as a hand switch can be connected to the injection head 111 or the console 120 by wire or wirelessly.

The injection head 111 is mounted on the caster stand 112 and can be moved and arranged in the vicinity of the sleeper 153 of the radiation imaging device 150. The power supply for the injection head 111 can be provided on the injection head 111 or the console 120. Further, a power source independent of the injection head 111 can be provided separately, and the power source can be replaced with a battery. A ceiling suspension member may be provided instead of the caster stand 112, and the injection head 111 may be suspended from the ceiling via the ceiling suspension member.

Further, the injection head 111 is provided with operation buttons such as a forward button, an acceleration button, a backward button, a check button, and a start button. Then, the operator can manually operate the injection head 111 by operating the operation buttons. Specifically, the pressing portion of the injection head 111 advances while the operator presses the forward button, and the pressing portion retracts while the operator presses the retract button. When the operator presses the check button, the injection head 111 stands by in a state where injection is possible. After that, when the operator presses the start button, the injection head 111 advances the pressing portion to start injection of the chemical solution. The operation buttons are also displayed on the touch panel 129 of the console 120. The operator can also operate the injection head 111 by operating the touch panel 129.

The injection head 111 has a drive mechanism (not shown). For example, the drive mechanism includes a transmission mechanism connected to the shaft of the motor, a screw shaft connected to the transmission mechanism, a trapezoidal screw nut attached to the screw shaft, and an actuator connected to the trapezoidal screw nut. The transmission mechanism includes a pinion gear connected to the shaft and a screw gear connected to the screw shaft. Then, the transmission mechanism transmits the rotation from the motor to the screw shaft. As a result, the rotation of the shaft of the motor is transmitted to the screw shaft via the pinion gear and the screw gear. Therefore, the screw shaft rotates according to the transmitted rotation, and the trapezoidal screw nut slides in the forward direction or the reverse direction with the rotation of the screw shaft. As the trapezoidal screw nut slides, the pressing portion moves forward or backward.

A piston that is slidable in the syringe is attached to the syringe mounted on the injection head 111. The syringe may be either a syringe filled with a chemical solution or an empty syringe not filled with a chemical solution. Then, when the motor rotates in the normal direction with the rear end of the piston in contact with the pressing portion, the pressing portion pushes the piston in the forward direction. When the piston advances, the chemical solution in the syringe is pushed out and injected into the subject's body via an extension tube or the like connected to the tip of the syringe. On the other hand, when the motor reverses, the pressing portion pulls the piston in the backward direction. In addition, the syringe filled with the chemical solution includes a prefilled syringe filled with the chemical solution in advance, a syringe obtained by manually filling an empty syringe with the chemical solution by the operator, and an empty syringe by the operator with an aspirator or a filler. The syringe obtained by filling the syringe with a chemical solution is included. Further, when an empty syringe is mounted on the injection device 110, the operator can fill the syringe with the drug solution by the injection device 110, the aspirator or the filler.

The syringe may be provided with a data carrier such as an RFID (Radio Frequency Identifier) or a barcode. Information such as the filled chemical solution is recorded in this data carrier. Then, the injection device 110 can read the information recorded from the data carrier via the injection head 111 and control the injection pressure of the drug solution and the like. For example, the console 120 can calculate the optimum injection amount per body weight based on the read information (iodine amount or gadolinium content) of the drug solution and display it on the touch panel 129.

When injecting the drug solution, the operator turns on the power of the injection device 110 and mounts a syringe on the injection head 111 to complete the preparation for injection. Then, the operator operates the operation buttons of the touch panel 129 or the injection head 111 to input the data necessary for creating the injection protocol to the console 120. For example, the required data are physical data of the subject such as body weight, height, body surface area, heart rate and cardiac output, data on the type of drug solution, and the like. The operator may turn on the power of the injection device 110 after mounting the syringe. In addition, the injection protocol, drug solution data, and the like can be input to the console 120 from an external storage medium.

The console 120 stores in advance basic injection protocols such as injection rate, injection volume, injection time and maximum injection pressure (injection pressure limit value), and drug solution data. The console 120 then determines an individual injection protocol suitable for the individual subject, depending on the input data and the pre-stored data. Further, the console 120 displays predetermined data such as injection speed, injection amount and injection time on the touch panel 129. The operator can review the contents of the determined injection protocol and change the contents if necessary. The injection protocol may be locked by a password so that it cannot be changed by a third party.

The console 120 may also display the injection protocol on an external device such as a portable display or tablet computer. These devices are wirelessly connected to the injection head 111 or the console 120 according to a standard such as Bluetooth (registered trademark) or Wi-Fi, and can be used as a head display of the injection head 111.

When the operator completes the injection preparation and confirms the injection protocol, the operator presses the check button on the injection head 111 or the touch panel 129. As a result, the injection head 111 stands by in a state in which injection is possible. After that, the operator presses the injection head 111, the start button of the remote control device, or the start button displayed on the touch panel 129 to start the injection. The injection head 111 then automatically injects the drug solution according to the injection protocol. When the injection head 111 has a head display, the operator can also start injection by pressing the start button displayed on the head display.

As shown in FIG. 2, which is a block diagram, the injection device 110 is arranged on the injection control unit 121 and the storage unit 122 arranged in the housing of the console 120 and the outer surface of the housing of the console 120, and displays a predetermined image. It also has a touch panel 129 that functions as an operation panel. The injection control unit 121 includes a CPU, an FPGA, a drive circuit, and the like. Further, the storage unit 122 has a RAM, which is a system work memory for operating the CPU, a ROM for storing a control program, a system software, and the like, a hard disk drive, and the like.

The injection control unit 121 controls the entire injection device 110 based on a program or the like stored in the storage unit 122, and also comprehensively controls various processes. That is, the injection control unit 121 can execute various processing operations such as calculation, control, and discrimination according to the control program stored in the storage unit 122. The injection control unit 121 can also perform control according to a program stored in an external storage medium such as a CD (Compact Disc) or a server on the Internet.

Further, the injection control unit 121 combines the history creation unit 124 that creates the injection history data of the drug solution and the second radiation data in which the first radiation data received from the radiation detection device 190 is associated with the injection history data and the common time data. It has a data creation unit 125 to be created. The interface 123 transmits the injection history data created by the history creation unit 124 to the external storage device 180 and the data processing device 130. This injection history data includes a pressure graph showing the relationship between the elapsed time from the start of injection and the injection pressure (including estimated values), injection rate, injection amount, injection time (injection duration), injection pressure, injection time, Data such as the type of drug solution, the amount of iodine of the contrast medium, the body classification or imaging site where the drug solution was injected, the identification information for identifying the drug solution injection, the subject identification information, and the set injection protocol are included.

For example, in the pressure graph, the estimated value of the injection pressure calculated by using the load cell or the motor current of the injection head 111 is plotted in association with the elapsed time from the start of injection. The pressure graph may be numerical data or image data, and its format is not particularly limited. In addition, the identification information for identifying the drug solution injection includes the serial number of the test, the injection work ID, and the injection date and time. In addition, the subject identification information includes the name, subject ID, and date of birth. In addition, the body segment injected with the drug solution includes a part of the body such as the head, chest and abdomen, and the imaging site includes imaging sites such as the heart, liver and blood vessels in the body segment. Is done.

As the common time data, time data preset in the injection device 110 can be used. For example, the data creation unit 125 can use the injection start time data as common time data. In this case, the data creation unit 125 creates the second radiation data by associating the detection timing data indicating the timing of detecting the radiation with the elapsed time from the injection start time. Further, the data creation unit 125 may create the second radiation data by associating the hourly radiation amount data indicating the detected radiation amount with the elapsed time from the injection start time.

The injection device 110 includes an interface (I / F) 123 for connecting to an external storage device 180, a data processing device 130, and a radiation detection device 190. The interface 123 receives the first radiation data from the radiation detection device 190 and transmits the second radiation data created by the data creation unit 125 to the external devices (external storage device 180 and data processing device 130). Further, the interface may be a separate interface for each device, or may be the same interface. In order to link the injection operation and the imaging operation, the injection device 110 can be connected to the radiation imaging device 150 via the interface 123.

[Radiation detector]
The radiation detection device 190 is wired or wirelessly connected to the injection device 110, and is, for example, wirelessly connected to the injection device 110 according to the standard of Bluetooth (registered trademark). Then, the radiation detection device 190 detects the radiation (scattered rays) emitted from the radiation imaging device 150 and transmits the radiation data to the injection device 110. As the radiation detector 190, various detectors using a detector such as a GM (Geiger-Muller) counter, a scintillator, or a semiconductor detector can be used. The radiation detection device 190 may include a user interface (not shown) for inputting data such as a predetermined threshold value.

Further, the radiation detection device 190 is configured to start detection of radiation according to a detection start command received from the injection control unit 121 of the injection device 110. By transmitting the detection start command at the same time as the injection start of the chemical solution, the injection history data and the radiation data can be synchronized with each other based on, for example, the injection start timing. As a result, the data creation unit 125 of the injection control unit 121 can create data indicating when the radiation was detected or when the radiation amount was based on the injection start timing.

Specifically, the radiation amount data transmitted by the radiation detection device 190 is shown as a graph in FIG. In FIG. 3, the vertical axis is the radiation amount (mGy / s), and the horizontal axis is the elapsed time (ms) from the start of detection. This radiation dose data was obtained by measuring under the following conditions.

First, the sensor of the radiation detection device 190 was attached to the ceiling-suspended member that suspends the injection head 111. At this time, the distance from the sensor to the imaging unit 151 of the radiation imaging apparatus 150 was 60 cm. Then, a personal computer was arranged outside the CT room in which the injection device 110 and the radiation imaging device 150 were installed. After that, the radiation (scattered light) when the radiation imaging device 150 exposed the phantom was measured under the conditions of a tube voltage of 120 KV and an exposure time of 2.45 s. The radiation amount data transmitted by the radiation detection device 190 was received by a personal computer. As the phantom, a phantom composed of 10.9 L of pure water, 21.8 g of sodium chloride and 6.0 g of copper sulfate was used.

As shown in FIG. 3, no radiation was detected immediately after the start of detection (0 mGy / s), but about 0.00445 mGy / s of radiation was detected about 1373.07 ms after the start of measurement. Then, about 0.00719 mGy / s of radiation was detected about 1525.64 ms after the start of detection (first peak). Subsequently, after detecting the second to seventh peaks, about 0.00097 mGy / s of radiation was detected when about 3830.15 ms had elapsed from the start of detection. After that, no radiation was detected (0 mGy / s).

The time from the detection of radiation to the disappearance of radiation was approximately 2457.08 ms, which was substantially the same as the exposure time (2450 ms). Therefore, it can be seen that by detecting the radiation (scattered rays) with the radiation detection device 190, the exposure start timing, the exposure end timing, and the length of the exposure time can be determined almost accurately.

As the first radiation data, the radiation detection device 190 uses radiation amount data indicating the detected radiation amount or detection timing data indicating the timing at which radiation above a predetermined threshold value is detected as the elapsed time (detection time) from the start of detection. Is transmitted to the injection device 110 in association with. When transmitting the detection timing data, in the example of FIG. 3, the radiation detection device 190 has a predetermined time interval (for example, every 8 ms) from the time when about 1373.07 ms elapses to the time when about 3803.15 ms elapses. Data indicating that radiation has been detected is transmitted to the injection device 110.

[Data processing device]
The data processing device 130 of the first embodiment is, for example, an image generation device that is wired or wirelessly connected to the console 120 of the injection device 110. The data processing device 130 acquires injection history data and second radiation data from the injection device 110. As shown in FIG. 2, which is a block diagram, the data processing device 130 is wired or wirelessly connected to a personal computer (PC) 138 having a display 139. Then, the data processing device 130 can be operated via the personal computer 138. According to the operation of the operator, the data processing device 130 transmits various data such as the acquired injection history data and the second radiation data to the personal computer 138. Then, the personal computer 138 displays various received data on the display 139. The personal computer 138 has a user interface (not shown) that functions as a data input device.

Further, the data processing device 130 has a data processing control unit 131, a storage unit 132, and an interface (I / F) 133. The data processing control unit 131 has a CPU, an FPGA, a drive circuit, and the like, and processes data received from the injection device 110. Further, the storage unit 132 has a RAM, which is a system work memory for operating the CPU, a ROM for storing a control program, a system software, and the like, a hard disk drive, and the like. Further, the data processing device 130 is connected to the injection device 110 via the interface 133.

The data processing control unit 131 includes a data acquisition unit 134, an exposure determination unit 135, and a graph creation unit 136. The data acquisition unit 134 acquires injection history data and second radiation data from the injection device 110. The exposure determination unit 135 determines the exposure timing from the second radiation data. Then, the graph creation unit 136 creates an injection result graph by synthesizing the exposure timing with the injection history data. Further, the graph creation unit 136 stores the created injection result graph in the storage unit 132.

The data processing device 130 can also be operated by the console 120 of the injection device 110. The data processing device 130 may be arranged inside the personal computer 138. Further, the personal computer 138 which functions as one data processing device 130 by a computer program is also included in the data processing device 130 of the first embodiment. In this case, the computer program is stored in, for example, a storage unit of the personal computer 138.

[Data processing]
The data processing performed by the data processing device 130 will be described with reference to the flowchart of FIG. First, when the preparation for injection is completed, the operator presses the start button of the injection head 111 to start injection. In response to the operator's operation, the injection control unit 121 causes the injection head 111 to inject the drug solution according to the injection protocol.

At the same time as the injection control unit 121 starts the injection, the injection control unit 121 transmits a radiation detection start command to the radiation detection device 190 (S101). When the detection start command is received (YES in S102), the radiation detection device 190 starts the detection of the radiation emitted from the radiation imaging device 150 (S103). At the same time as the detection, the radiation detection device 190 transmits the detected radiation as the first radiation data to the injection device 110 (S104). The injection control unit 121 stores the received first radiation data in the storage unit 122. If the detection start command is not received (NO in S102), the radiation detection device 190 waits until the detection start command is received.

The imaging control unit 161 of the radiation imaging device 150 causes the imaging unit 151 to image the imaging site of the subject according to a predetermined imaging plan set in advance. That is, the image pickup control unit 161 causes the image pickup unit 151 to take an image at the timing when the contrast medium reaches the image pickup site after a predetermined time has elapsed from the start of injection. Then, the imaging control unit 161 obtains the fluoroscopic image data of the imaging portion and stores the fluoroscopic image data in the storage unit 162. Further, the imaging control unit 161 may store the fluoroscopic image data in the external storage device 180. The imaging control unit 161 can also store the time data of the exposure start timing and the time data of the exposure end timing in the storage unit 162 or the external storage device 180.

The radiation detection device 190 continues to transmit the first radiation data to the injection device 110, and ends the detection after a predetermined time (for example, 60 s) has elapsed from the reception of the detection start command. This is because when a predetermined time elapses from the start of detection (start of injection) and the contrast medium reaches the imaging site, imaging is performed, and after that, imaging is not performed. Therefore, the predetermined time is set to a sufficient time for the contrast medium to reach the imaging site. The radiation detection device 190 may store the first radiation data and transmit the first radiation data to the injection device 110 when a predetermined time has elapsed from the reception of the detection start command.

The history creation unit 124 of the injection device 110 creates injection history data of the drug solution during drug solution injection, after drug solution injection, or both. For example, the injection history data includes time data such as injection start time, injection end time, and elapsed time from injection start, injection pressure data (pressure graph) showing injection pressure for each elapsed time from injection start, and injection start. Includes injection volume data indicating the injection volume for each elapsed time from and injection rate data indicating the injection rate for each elapsed time from the start of injection. Then, the history creation unit 124 stores the created injection history data in the storage unit 122 of the injection device 110.

The data creation unit 125 of the injection device 110 acquires the first radiation data received from the radiation detection device 190 and the injection history data created by the history creation unit 124 from the storage unit 122. Then, the data creation unit 125 creates the second radiation data in which the first radiation data is associated with the time data common to the injection history data (S105). For example, the data creation unit 125 creates the second radiation data by associating the first radiation data with the time data of the elapsed time from the start of injection among the injection history data. As a result, second radiation data showing the relationship between the elapsed time from the start of injection and the radiation detection result is created.

Upon completion of imaging, the operator operates a personal computer 138 connected to the data processing device 130 to create an injection result graph. Then, in response to the operation of the operator, the data acquisition unit 134 of the data processing device 130 transfers the injection history data of the drug solution injected into the subject and the second radiation data associated with the time data common to the injection history data. Obtained from the injection device 110 (S106). It should be noted that what is acquired as the injection history data is arbitrary. For example, in addition to the injection pressure data and the time data, the data acquisition unit 134 includes the subject ID, the subject name, the subject gender, the subject age, the test date and time, and the drug solution. Various data such as name, imaging site, injection rate, injection amount, and maximum injection pressure may be acquired.

The exposure determination unit 135 of the data processing device 130 determines the exposure timing from the second radiation data (S107). Specifically, when the second radiation data includes the radiation amount data associated with the elapsed time, the exposure determination unit 135 determines that the timing at which radiation above a predetermined threshold is detected is the exposure timing. .. For example, when the radiation amount exceeds a predetermined threshold value during the elapsed time from the start of injection from 1300 ms to 3800 ms, the exposure determination unit 135 determines that the exposure timing is in between. That is, the exposure determination unit 135 determines that 1300 ms after the start of injection is the exposure start timing, 3800 ms after the start of injection is the end of exposure, and the length of the exposure timing is 2500 ms. ..

Further, when the second radiation data includes the detection timing data associated with the elapsed time, the exposure determination unit 135 determines that the timing at which the radiation is detected is the exposure timing. For example, when radiation is constantly detected during the elapsed time from the start of injection from 1300 ms to 3800 ms, the exposure determination unit 135 determines that the exposure timing is during that period. That is, the exposure determination unit 135 determines that the exposure start timing is 1300 ms after the start of injection, the exposure end timing is 3800 ms after the injection start, and the length of the exposure timing is 2500 ms. To do.

The graph creation unit 136 of the data processing device 130 synthesizes the exposure timing obtained by the determination with the injection history data to create an injection result graph (S108). For example, the exposure determination unit 135 creates an injection result graph by synthesizing the exposure timing with the injection pressure data (pressure graph) in the injection history data. As an example, the graph creation unit 136 creates an injection result graph including the pressure graph 170 as shown in FIG. The vertical axis of the pressure graph 170 indicates the injection pressure (kg / cm ² ), and the horizontal axis indicates the elapsed time (s) with respect to the injection start timing of the drug solution (zero).

FIG. 5 shows an example in which one imaging is performed, and the first imaging is performed about 40 seconds after the start of injection. Further, as the exposure timing, the exposure start timing is indicated by a vertical bar 172 extending horizontally with the vertical axis so as to overlap the pressure graph 170. An indicator 173 is shown above the vertical bar 172. The shape of the indicator 173 may be an inverted triangle, a circle, an ellipse, an upward triangle, a rectangle, a polygon, or a star. Further, the exposure start timing may be a text indicating the time (for example, a display such as "0:30") instead of a graphic. Further, the exposure start timing may be displayed by filling the area showing the exposure time with a predetermined color different from the color scheme in the injection result graph.

When the injection result graph is created, the graph creation unit 136 stores the injection result graph in the storage unit 132, and the data processing is completed. Further, the data processing control unit 131 displays the injection result graph on the display 139 of the personal computer 138. Further, when the personal computer 138 is connected to the external storage device 180, the operator can also store the injection result graph in the external storage device 180, if necessary. Further, the data processing device 130 may read the fluoroscopic image from the external storage device 180, associate the fluoroscopic image with the injection result graph, and store both data in the external storage device 180. The graph creation unit 136 can create an injection result graph using various data formats such as an image data format, a text data format, a CSV (Comma Separated Value) format, and a DICOM data format.

The injection result graph allows the operator to accurately grasp the imaging start timing based on the injection start. Therefore, the operator can grasp the time from the start of injection until the contrast medium reaches the imaging site by evaluating the fluoroscopic image. In particular, since the arrival time of the contrast medium varies greatly depending on the subject, it is possible to capture an image in an excellent state by grasping the arrival time of each subject. Further, since the injection history data and the exposure timing are displayed in one injection result graph, the operator can confirm the correlation between the actual injection result and the exposure timing for the subject and the fluoroscopic image. Therefore, even if the desired fluoroscopic image is not obtained, the operator can determine the cause (for example, the arrival time of the contrast medium is early).

[program]
A program for data processing is implemented in the data processing device 130 of the first embodiment. When the data processing control unit 131 (computer) executes various processes in response to this program, the data processing control unit 131 includes the data acquisition unit 134, the exposure determination unit 135, and the graph creation unit 136 as various functions. Realized logically. This program uses a computer to determine the exposure timing from the radiation data and the data acquisition unit that acquires the injection history data of the drug solution injected into the subject and the radiation data associated with the injection history data and the common time data. It functions as an exposure determination unit and a graph creation unit that creates an injection result graph by synthesizing the exposure timing with injection history data. The program can be recorded on a computer-readable internal storage or external recording medium.

According to the first embodiment described above, the injection device 110 can create radiation data associated with time data and transmit it to an external device. Further, the injection device 110 and the data processing device 130 can use the injection history data and the exposure timing based on the common time data. Therefore, the injection device 110 can create the second radiation data in which the radiation data is associated with the injection history data and the common time data without acquiring the time data from the radiation imaging device 150 or the external storage device 180. As a result, the exposure timing synchronized with the time data of the injection device 110 can be combined with the injection history data to create an injection result graph. According to this injection result graph, the time from the start of injection to the start of imaging can be visually understood.

In addition, when imaging is performed with a predetermined delay time after the start of injection, the imaging start timing can be set with reference to the injection result graph and the fluoroscopic image at the time of imaging performed earlier. As a result, the imaging start timing can be optimized according to the individual differences of the subjects. Further, by starting the imaging at an appropriate timing, the required amount of contrast medium can be reduced. This can reduce the risk and cost of side effects. In addition, since it is not necessary to perform so-called real prep, the exposure dose can be reduced.

In the injection result graph of FIG. 5, the image is taken once, but the injection result graph can be similarly created even when the image is taken a plurality of times (for example, twice) in one inspection. Further, the data processing device 130 and / or the radiation detection device 190 can be built in the injection device 110 and can be attached to the injection head 111.

Further, the pressure graph 170 can also be created by the graph creation unit 136 of the data processing device 130. In this case, the data acquisition unit 134 acquires the injection pressure data associated with the elapsed time from the start of injection as injection history data from the injection device 110. Then, the graph creation unit 136 creates a pressure graph 170 as shown in FIG. 5 based on the acquired injection pressure data. After that, the graph creation unit 136 creates an injection result graph by synthesizing the exposure timing obtained by the determination with the created pressure graph 170.

Further, the data processing device 130 may perform data processing at a predetermined timing set in advance. For example, the data processing device 130 may receive an injection start signal from the injection device 110 and automatically start data processing at a timing when a predetermined time has elapsed from the start of injection. Further, when the injection history data or the second radiation data is stored in the external storage device 180, the data acquisition unit 134 of the data processing device 130 may acquire the data from the external storage device 180.

[Second Embodiment]
Subsequently, the second embodiment will be described with reference to FIG. 6 showing the data processing system 2000 according to the second embodiment and FIG. 7 which is a block diagram thereof. In the description of the second embodiment, the differences from the first embodiment will be described, and the description of the components described in the first embodiment will be omitted. Unless otherwise specified, the components with the same reference numerals perform substantially the same operations and functions, and the effects thereof are also substantially the same.

The data processing system 2000 includes an injection system 200 and a radiation imaging device 150 that captures a fluoroscopic image of a subject. The injection system 200 includes an injection device 110 for injecting a drug solution, and a radiation detection device 290 for detecting radiation and transmitting the first radiation data to the injection device 110. The radiation detection device 290 of the second embodiment is attached to the sleeper 153 of the radiation imaging device 150. Further, the radiation imaging device 150, the injection device 110, the external storage device 180, and the data processing device 230 are each wired or wirelessly connected via a LAN or a dedicated line, and various data can be transmitted and received to each other.

[Radiation detector]
The radiation detection device 290 is wirelessly connected to the injection device 110 in accordance with the standard of Bluetooth (registered trademark), detects the radiation emitted from the radiation imaging device 150, and transmits the radiation data to the injection device 110. Further, the radiation detection device 290 is configured to start detection of radiation when pairing with the injection device 110 is established. The radiation detection device 290 of the second embodiment has a sensor extending in the longitudinal direction of the sleeper 153, and the sensor is installed on the sleeper 153. As a result, radiation can be detected in the vicinity of the subject, so that the exposure dose of the subject can also be detected.

[Data processing device]
The data processing device 230 of the second embodiment is, for example, a workstation (computer) that receives image data of a fluoroscopic image from a radiation imaging device 150. The data processing device 230 is wired or wirelessly connected to the control device 160 of the radiation imaging device 150, the console 120 of the injection device 110, and the external storage device 180. Further, the data processing device 230 acquires the injection history data and the second radiation data from the injection device 110.

As shown in FIG. 7, the data processing device 230 has a data processing control unit 231 and a storage unit 232. The data processing control unit 231 is a data acquisition unit 234 that acquires injection history data and a second radiation data from the injection device 110, and a graph creation unit that synthesizes the second radiation data with the injection history data to create an injection result graph. It has 236 and. The graph creation unit 236 stores the created injection result graph in the storage unit 232.

Further, the data processing device 230 has an interface 233 for connecting to the radiation imaging device 150, the injection device 110, and the external storage device 180. This interface may be a separate interface for each device, or may be the same interface. The data processing device 230 has a display 239 controlled by the data processing control unit 231. The display 239 can display a fluoroscopic image of the subject acquired from the radiation imaging device 150. In addition, the display 239 can display the injection result graph created by the graph creation unit 236 and the injection history data acquired by the data acquisition unit 234. The data processing device 230 includes a user interface (not shown) that functions as a data input device.

[Data processing]
The data processing of the second embodiment will be described with reference to the flowchart of FIG. First, when the preparation for injection is completed, the operator presses the start button of the injection head 111 to start injection. The injection control unit 121 starts injection in response to the operation of the operator, but the radiation detection device 290 of the second embodiment is configured to start detection of radiation when pairing with the injection device 110 is established. .. That is, when the power of the radiation detection device 290 is turned on, the radiation detection device 290 issues a pairing request to the injection device 110 (S201). Then, when the injection device 110 responds to the pairing request of the radiation detection device 290 and the pairing is established (YES in S202), the radiation detection device 290 starts the detection of radiation (S203).

At the same time that the radiation detection device 290 detects the radiation, the detected radiation is transmitted to the injection device 110 as the first radiation data (S204). Then, the data creation unit 125 of the injection device 110 creates the second radiation data in which the received first radiation data is associated with the time data (S205), and stores it in the storage unit 122. If the pairing is not established (NO in S202), the radiation detection device 290 waits until the pairing is established. Further, the radiation detection device 290 may start the detection of radiation at the timing when the power of the radiation detection device 290 is turned on instead of the timing when the pairing is established.

The imaging control unit 161 of the radiation imaging device 150 causes the imaging unit 151 to image the imaging site of the subject according to a predetermined imaging plan set in advance. The radiation detection device 290 continues to transmit the first radiation data to the injection device 110, and ends the detection after a predetermined time has elapsed from the start of the detection.

The history creation unit 124 of the injection device 110 creates injection history data of the drug solution during drug solution injection, after drug solution injection, or both. At this time, the history creation unit 124 creates injection history data based on the time data common to the time data of the second radiation data. Then, the history creation unit 124 stores the created injection history data in the storage unit 122 of the injection device 110.

When the imaging is complete, the operator operates the data processing device 230 to create the injection result graph. Then, in response to the operation of the operator, the data acquisition unit 234 of the data processing device 230 obtains the injection history data of the drug solution injected into the subject and the second radiation data associated with the time data common to the injection history data. Obtained from the injection device 110 (S206).

The graph creation unit 236 of the data processing device 230 synthesizes the second radiation data with the injection history data to create an injection result graph (S207). Specifically, when the second radiation data includes the radiation dose data associated with the elapsed time, the graph creation unit 236 synthesizes the radiation dose data with the injection history data. For example, the graph creation unit 236 displays a graph showing the elapsed time from the start of injection in association with the radiation amount over from 2300 ms to 3800 ms, which is the elapsed time from the start of injection, among the injection history data (pressure graph). ).

When the second radiation data includes the detection timing data associated with the elapsed time, the graph creation unit 236 synthesizes the detection timing at which the radiation is detected into the injection history data. For example, when radiation is always detected during the elapsed time from the start of injection from 2300 ms to 3800 ms, the graph creation unit 236 synthesizes the detection timing during that period into the injection history data. The detection timing can be displayed by filling a vertical bar extending horizontally with the vertical axis of the pressure graph or an area indicating the detection timing with a predetermined color.

In these cases, the injection result graph does not include the exposure timing. However, the operator said that the exposure start timing is 2300 ms after the start of injection, the exposure end timing is 3800 ms after the start of injection, and the length of the exposure timing is 2500 ms. Alternatively, it can be visually understood from the detection timing.

When the injection result graph is created, the graph creation unit 236 stores the injection result graph in the storage unit 232, and the data processing is completed. Further, the data processing control unit 231 of the data processing device 230 displays the injection result graph on the display 239. Further, the operator can also store the displayed injection result graph in the external storage device 180 as needed.

[program]
A program for data processing is implemented in the data processing device 230 of the second embodiment. When the data processing control unit 231 (computer) executes various processes in response to this program, the data processing control unit 231 logically realizes the data acquisition unit 234 and the graph creation unit 236 as various functions. .. This program uses a computer to synthesize the injection history data of the drug solution injected into the subject and the data acquisition unit that acquires the radiation data associated with the injection history data and the common time data, and the radiation data into the injection history data. It functions as a graph creation unit that creates an injection result graph. The program can be recorded on a computer-readable internal storage or external recording medium.

According to the second embodiment, the injection device 110 and the data processing device 230 can use the injection history data and the radiation data based on the common time data. Therefore, the injection device 110 can create the second radiation data in which the radiation data is associated with the injection history data and the common time data without acquiring the time data from the radiation imaging device 150 or the external storage device 180. As a result, the radiation data synchronized with the time data of the injection device 110 can be combined with the injection history data to create an injection result graph. According to this injection result graph, the time from the start of injection to the start of imaging can be visually understood. Further, according to the radiation detection device 290 of the second embodiment, since radiation can be detected in the vicinity of the subject, the exposure dose of the subject can also be detected.

Although the present invention has been described above with reference to each embodiment, the present invention is not limited to the above embodiment. The present invention also includes inventions modified to the extent not contrary to the present invention, and inventions equivalent to the present invention. In addition, each embodiment and each modification can be appropriately combined within a range not contrary to the present invention.

[Transformed form]
The injection device 110 may include a sub-display provided in the vicinity of the injection head 111 or the injection head 111. Further, the injection device 110 may display the radiation amount received from the radiation detection devices 190 and 290 on the sub-display during and / or after the inspection. This allows the operator or subject to confirm the radiation dose during and / or after the examination. In this case, the radiation dose may be displayed as a numerical value in a text format or as a graph.

The radiation detection device 190 and the injection head 111 can be integrally configured. Further, the injection device 110 and the data processing device 130 can be integrally configured. Further, the personal computer 138 and the data processing device 130 can be integrally configured. Further, the radiation detection device 190 may be configured to start the radiation detection at the timing when the power is turned on and to end the radiation detection at the timing when the power is turned off. In this case, the radiation detection device 190 can transmit the radiation detected after the timing of receiving the detection start command to the injection device 110 as the first radiation data.

Some or all of the above embodiments may also be described, but not limited to:

(Appendix 1)
Detects the radiation emitted from the radiation imaging device that captures the fluoroscopic image,
The detected radiation is used as the first radiation data and transmitted to the injection device that injects the drug solution.
Create injection history data of the drug solution and
The second radiation data in which the first radiation data is associated with the time data common to the injection history data is created.
The exposure timing is determined from the second radiation data,
A data processing method for creating an injection result graph by synthesizing the exposure timing with the injection history data.

(Appendix 2)
Detects the radiation emitted from the radiation imaging device that captures the fluoroscopic image,
The detected radiation is used as the first radiation data and transmitted to the injection device that injects the drug solution.
Create injection history data of the drug solution and
The second radiation data in which the first radiation data is associated with the time data common to the injection history data is created.
A data processing method for creating an injection result graph by synthesizing the second radiation data with the injection history data.

(Appendix 3)
Computer,
A data acquisition unit that acquires injection history data of the drug solution injected into the subject and radiation data associated with the injection history data and common time data.
A data processing program that functions as a graph creation unit that creates an injection result graph by synthesizing the radiation data with the injection history data.

(Appendix 4)
Computer,
A data acquisition unit that acquires injection history data of the drug solution injected into the subject and radiation data associated with the injection history data and common time data.
A data processing program that functions as a graph creation unit that creates an injection result graph by synthesizing the radiation data with the injection history data.

100: Injection system, 110: Injection device, 123: Interface, 124: History creation unit, 125: Data creation unit, 130: Data processing device, 134: Data acquisition unit, 135: Exposure determination unit, 136: Graph creation unit , 190: Radiation detector, 200: Injection system, 234: Data acquisition unit, 236: Graph creation unit

Claims (7)

An injection device that injects chemicals and
Radiation is detected, and the first radiation data including the radiation amount data indicating the detected radiation amount or the detection timing data indicating the timing at which the radiation is detected, which is associated with the elapsed time from the start of detection , is transmitted to the injection device . Equipped with a radiation detector
The injection device has a history creation unit that creates injection history data of the drug solution, and a data creation unit that creates second radiation data in which the first radiation data is associated with time data common to the injection history data. , Injection system. A data acquisition unit that acquires the injection history data and the second radiation data, an exposure determination unit that determines the exposure timing from the second radiation data, and an injection that combines the exposure timing with the injection history data for injection. The injection system according to claim 1, further comprising a data processing apparatus having a graph creating unit for creating a result graph. A data processing apparatus further comprising a data acquisition unit for acquiring the injection history data and the second radiation data, and a graph creation unit for synthesizing the second radiation data with the injection history data to create an injection result graph. The injection system according to claim 1. The injection system according to any one of claims 1 to 3, wherein the injection history data includes injection pressure data for each elapsed time from the start of injection of the drug solution. Acquisition of injection history data of the drug solution injected into the subject and radiation data including radiation dose data indicating the radiation dose or detection timing data indicating the timing of detecting the radiation, which is associated with the time data common to the injection history data. Data acquisition department and
An exposure determination unit that determines the exposure timing from the radiation data,
And a graph creation unit for creating an injection effect graph by combining the irradiation timing in the injection history data, the data processing device. Acquisition of injection history data of the drug solution injected into the subject and radiation data including radiation dose data indicating the radiation dose or detection timing data indicating the timing of detecting the radiation, which is associated with the time data common to the injection history data. Data acquisition department and
And a graph creation unit for creating an injection effect graph by combining the radiation data to the injection history data, the data processing device. An injection device that injects chemicals
An interface that receives first radiation data, including radiation dose data indicating the radiation dose or detection timing data indicating the timing at which the radiation was detected, associated with the elapsed time from the start of detection .
And a data creation unit that creates a second radiation data associated with said first radiation data on time data,
The interface is an injection device that transmits the second radiation data to an external device.