JP4455865B2 - Fluoroscopic imaging system - Google Patents

Description

  The present invention relates to a fluoroscopic imaging system that has a chemical injection device and a fluoroscopic imaging device and injects a chemical into a subject who takes a fluoroscopic image.

  Currently, there are CT (Computed Tomography) scanners, MRI (Magnetic Resonance Imaging) devices, PET (Positron Emission Tomography) devices, ultrasound diagnostic devices, etc. Examples of medical devices that capture a blood vessel image that is a fluoroscopic image of a subject include a CT angio device and an MRA (MR Angio) device.

  When using the apparatus as described above, a chemical liquid such as a contrast medium or physiological saline may be injected into the subject, and a chemical liquid injection apparatus that automatically executes this injection has also been put into practical use. Such a chemical solution injection device has, for example, a drive motor and a slider mechanism, and a chemical solution syringe is detachably attached thereto.

  The drug solution syringe has a structure in which a piston member is slidably inserted into a cylinder member, and the cylinder member is filled with a contrast medium or physiological saline. When such a drug solution syringe is connected to a subject with an extension tube and attached to the drug solution injection mechanism, the drug solution injection device holds the piston member and the cylinder member separately with the drug solution injection mechanism and moves them relative to each other. A subject is injected with a contrast agent.

  In this case, when the operator inputs data on the injection speed of the contrast medium into the chemical liquid injector, the chemical liquid injector injects the contrast medium into the subject at the injection speed at which the data is input. Since the contrast level of the subject is changed by the injection of the contrast agent, a good fluoroscopic image is captured by the fluoroscopic imaging device.

In addition, the above-mentioned chemical | medical solution injection | pouring apparatus as mentioned above was invented and applied in the past by this applicant etc. (for example, refer patent document 1, 2).
JP 2002-11096 A JP 2002-102343 A

  As described above, a high-quality fluoroscopic image can be captured by injecting a contrast medium as a chemical liquid using a chemical liquid injector into a subject whose fluoroscopic image is captured by the fluoroscopic imaging apparatus. However, in order to inject a contrast medium into a subject who captures a fluoroscopic image, it is necessary to operate both the chemical liquid injector and the fluoroscopic imaging device. For example, when there is only one operator, the operation is complicated. Yes, if there are two workers, the personnel cost is doubled.

  Furthermore, since the contrast medium requires a predetermined time from the start of injection until it reaches the affected area, generally, imaging of a fluoroscopic image is started when the predetermined time has elapsed since the start of contrast medium injection. Is suitable, but to do this properly requires proficiency.

  Further, when a fluoroscopic imaging apparatus is operated after one worker starts injecting the chemical liquid injector, recognition is delayed even if a malfunction occurs in the chemical injector. Similarly, when a single operator operates the chemical injection device while causing the fluoroscopic imaging device to capture a fluoroscopic image, recognition is delayed even if a malfunction occurs in the fluoroscopic imaging device.

  Furthermore, in the above-described case, it is necessary to stop both the fluoroscopic imaging device and the chemical solution injection device, but it is difficult for one operator to execute this quickly. Also, even if the work is completed without causing malfunction, it is necessary to stop both the fluoroscopic imaging device and the chemical injection device, but it is difficult for one operator to execute this quickly. is there.

  For this reason, for example, when the medical fluid injection device is stopped after the fluoroscopic imaging device is stopped, the contrast agent is unnecessarily injected into the subject, and the physical burden on the subject increases unnecessarily and the contrast agent. The cost of consumption also increases. In addition, when the fluoroscopic imaging apparatus is stopped after the chemical solution injection apparatus is stopped, for example, if the fluoroscopic imaging apparatus is a CT scanner, the test subject is unnecessarily irradiated with X-rays. Will increase.

  The present invention has been made in view of the above-described problems, and provides a fluoroscopic imaging system capable of operating a fluoroscopic imaging device and a chemical liquid injector appropriately and easily even if one worker is alone. Objective.

The fluoroscopic imaging system of the present invention includes a fluoroscopic imaging device and a chemical solution injection device, and the fluoroscopic imaging device and the chemical solution injection device perform data communication to link at least one operation. The imaging device and the chemical solution injection device operate reliably and appropriately. Further, the device on the other side of the device including the transmission means configured to send back the completion of execution of the predetermined operation corresponding to the data reception has a detection means, and by this detection means, An abnormal operation is detected.

  Note that “interlocking” in the present invention means that a predetermined operation of one of the fluoroscopic imaging apparatus and the chemical liquid injector is performed by the other, but the operation is completely performed. For example, it is possible that the other starts operation after a predetermined time has elapsed since one started operation.

  The various means referred to in the present invention need only be formed so as to realize the function. For example, dedicated hardware that exhibits a predetermined function, a data processing apparatus provided with a predetermined function by a computer program A predetermined function realized in the data processing apparatus by a computer program, a combination thereof, or the like may be used.

  In addition, the various means referred to in the present invention do not have to be independent of each other, a plurality of means are formed as one device, and a certain means is a part of other means. It is also possible that a part of the means overlaps with a part of the other means.

  Further, the computer referred to in the present invention may be any hardware that can read a computer program and execute a corresponding processing operation. For example, a CPU (Central Processing Unit) is mainly used as a ROM (Read Only). Hardware to which various devices such as a memory (RAM), a random access memory (RAM), and an interface (I / F) unit are connected may be used.

  Note that causing the computer to execute various operations corresponding to the computer program in the present invention also means causing the computer to control the operation of various devices. For example, storing various data in a computer means that the CPU stores various data in an information storage medium such as a RAM fixed to the computer, or an FD (Flexible Disc-cartridge) that is loaded in the computer in a replaceable manner. The CPU may store various data in an information storage medium such as FDD (FD Drive).

  The information storage medium referred to in the present invention may be hardware in which a computer program for causing a computer to execute various processes is stored in advance. For example, a ROM and a HDD (Hard Disc) fixed to the computer. Drive), a CD (Compact Disc) -ROM and an FD, which are loaded in a computer in a replaceable manner, and the like.

In the fluoroscopic imaging system of the present invention, since the fluoroscopic imaging device and the chemical liquid injector are in data communication to link at least one operation, even a single operator can easily and reliably connect the fluoroscopic imaging device and the chemical injector. For example, when a predetermined time has elapsed since the injection of contrast medium has started, the imaging of a fluoroscopic image automatically starts, or one of the fluoroscopic imaging device and the chemical solution injection device malfunctions. Can be detected by the other, or when one of the fluoroscopic imaging device and the chemical liquid injector is automatically stopped due to operation completion or malfunction, the other can also be automatically stopped simultaneously.

[Configuration of the embodiment]
An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the fluoroscopic imaging system 1000 according to the present embodiment includes a chemical liquid injector 100 and a CT scanner 200 that is a fluoroscopic imaging apparatus. The chemical injector 100 and the CT scanner 200 are included. And are wired.

  As shown in FIG. 4, the chemical injection device 100 has an apparatus main body 103 attached to the upper end of a stand 102, and an operation panel 104 that is an input operation device and a liquid crystal display 105 that is a data display device. And are installed.

  An arm 106 is attached to a side portion of the apparatus main body 103, and an injection head 110 is attached to the upper end of the arm 106. As shown in FIG. 5, the injection head 110 has a recess 112 formed as a syringe holding mechanism on the upper surface of the head body 111, and the cylinder member 301 of the chemical syringe 300 is detachably held in the recess 112.

  The chemical syringe 300 includes a cylinder member 301 and a piston member 302, and the piston member 302 is slidably inserted into the cylinder member 301. The cylinder member 301 is filled with a contrast medium for CT as a chemical solution, and this contrast medium is injected into a subject (not shown).

  A syringe drive mechanism 120 is disposed behind the recess 112 of the injection head 110. The syringe drive mechanism 120 grips and slides the piston member 302 of the liquid syringe 300 held in the recess 112. As shown in FIG. 2, the syringe drive mechanism 120 has a drive motor 121 such as an ultrasonic motor as a drive source, and slides the piston member 302 by a screw mechanism (not shown) or the like. The syringe driving mechanism 120 also includes a load cell 122 that is a pressure-sensitive element, and detects the pressure with which the piston member 302 of the chemical liquid syringe 300 is pressed by the load cell 122.

  The chemical injection device 100 according to this embodiment includes a computer unit 124, and the computer unit 124 is connected to the syringe drive mechanism 120, the operation panel 104, the liquid crystal display 105, the drive motor 121, and the load cell 122.

  The computer unit 124 includes a so-called one-chip microcomputer, and includes hardware such as a CPU (Central Processing Unit) 125, a ROM (Read Only Memory) 126, a RAM (Random Access Memory) 127, and an I / F (Interface) unit 128. Have.

  In addition, as shown in FIG. 3, the chemical injection device 100 of this embodiment is arranged in the vicinity of a CT scanner 200 that is a fluoroscopic imaging device, and injects a contrast agent into a subject whose fluoroscopic image is captured by the CT scanner 200. . The CT scanner 200 includes an imaging unit 201 and a control unit 202, and the control unit 202 is also connected online to the chemical liquid injector 100 of this embodiment.

  As shown in FIG. 2, the control unit 202 includes a CPU 211 as hardware that is a main component of the computer, and an FDD 216 and a CD-ROM 217 in which a ROM 212, a RAM 213, an HDD 214, and an FD 215 are interchangeably loaded. Are connected to hardware such as a CD drive 218, a keyboard 219, a display unit 220, and I / F units 221 and 222.

  In this embodiment, one I / F unit 221 of the control unit 202 is wired to the imaging unit 201 via the connection connector 223, and the other I / F unit 222 is connected to the I / F of the chemical solution injector 100 via the communication cable 224. The unit 128 is wired.

  In the control unit 202 of this embodiment, hardware such as ROM 212, RAM 213, HDD 214, exchangeable FD 215, exchangeable CD-ROM 217, etc. corresponds to an information storage medium, and at least one of them includes a computer program for the CPU 211 and The resource is stored as software. Such software is installed in the control unit 202 in advance, and the CPU 211 executes a predetermined processing operation corresponding to the computer program.

  Further, in the computer unit 124 of the chemical solution injector 100, an appropriate computer program is mounted on an information storage medium such as the ROM 126 by firmware or the like, and the CPU 125 executes a processing operation corresponding to the computer program.

  As shown in FIG. 1, as described above, the CPU 125 of the computer unit 124 operates in accordance with the computer program, so that the chemical injection device 100 of this embodiment includes the injection operation means 131, the injection reception means 132, and the injection operation means. 133, various means such as injection transmission means 134 and injection detection means 135 are logically provided as various functions.

  Similarly, when the CPU 211 of the control unit 202 operates according to the computer program, the CT scanner 200 of this embodiment has an imaging operation unit 231, an imaging reception unit 232, an imaging operation unit 233, an imaging transmission unit 234, an imaging detection unit. Various means such as means 235 are logically provided as various functions.

  The injection operation means 131 of the chemical solution injection device 100 corresponds to a function in which the CPU 125 recognizes data input operation to the operation panel 104 corresponding to the computer program in the ROM 126, and performs an injection start, injection end, injection stop, etc. As input operation.

  The injection receiving means 132 corresponds to the function of the CPU 125 recognizing the received data of the I / F unit 128 corresponding to the above-described computer program, and the execution operation is the start of imaging, the end of imaging, or the cancellation of imaging from the CT scanner 200. Receive data.

  The injection operation means 133 corresponds to the function of the CPU 125 controlling the operation of the drive motor 121 of the syringe drive mechanism 120 and the like, and in response to an input operation to the injection operation means 131 or data reception of the injection reception means 132, Predetermined operations for injecting a chemical solution such as the end of injection and the stop of injection are executed.

  The injection transmission unit 134 corresponds to a function in which the CPU 125 performs data communication with the CT scanner 200 using the I / F unit 128, and the CT scanner 200 performs its own execution operation corresponding to an input operation to the injection operation unit 131. Data is transmitted, and when the injection operation means 133 executes a predetermined operation in response to data reception from the CT scanner 200, execution completion is returned as data.

  The injection detection means 135 corresponds to a function of the CPU 125 recognizing the detected pressure of the load cell 122 as data, and detects an abnormal operation of the chemical liquid injection device 100. Further, when the injection receiving unit 132 does not receive the execution completion data from the CT scanner 200 even if a predetermined allowable time has elapsed from the data transmission of the execution operation by the injection transmitting unit 134, the injection detecting unit 135 Detect abnormal operation.

  As described above, when the injection detection unit 135 detects an abnormal operation of the chemical injection device 100 or the CT scanner 200, the injection operation unit 133 stops the injection operation in response to the abnormality detection, and the injection transmission unit 134. Transmits data to the CT scanner 200 to stop injection.

  In addition, since the injection operation means 133 automatically terminates the chemical liquid injection in response to the occurrence of an end condition such as timeout or sensor detection when the chemical liquid injection is being executed, the injection transmission means 134 is also executed as an execution operation. Transmits data to the CT scanner 200.

  The imaging operation means 231 of the CT scanner 200 corresponds to a function in which the CPU 211 recognizes an input operation to the keyboard 219 corresponding to a computer program such as the RAM 213 and the like. The

  The imaging receiving means 232 corresponds to the function of the CPU 211 recognizing the received data of the I / F unit 222 corresponding to the above-described computer program, and performs an operation of starting injection, ending injection, stopping injection, etc. from the chemical liquid injector 100 Receive data as

  The imaging operation unit 233 corresponds to a function for the CPU 211 to control the operation of the imaging unit 201 and the like, and in response to an input operation to the imaging operation unit 231 or data reception of the imaging reception unit 232, imaging start, imaging end, or imaging stop. A predetermined operation of image capturing such as is executed.

  Note that when the imaging receiving unit 232 receives data indicating the end of injection or the stop of injection as an execution operation from the chemical injection device 100, the imaging operation unit 233 immediately executes the end of imaging or the stop of imaging. However, when the imaging reception unit 232 receives the injection start data as the execution operation from the chemical injection device 100 in which the injection start is input, the imaging operation unit 233 executes the imaging start after a predetermined standby time has elapsed. To do.

  The imaging transmission unit 234 corresponds to a function of the CPU 211 performing data communication with the chemical solution injector 100 using the I / F unit 222, and performs its own operation corresponding to an input operation to the imaging operation unit 231. Data is transmitted to 100, and when the imaging operation means 233 executes a predetermined operation in response to data reception from the chemical injection device 100, execution completion is returned as data.

  The imaging detection unit 235 corresponds to a function of the CPU 211 that recognizes an operation error of the imaging unit 201 as data, and detects an abnormal operation of the CT scanner 200. Further, when the imaging receiving unit 232 does not receive the execution completion data from the chemical injection device 100 even after a predetermined allowable time has elapsed since the data transmission of the execution operation by the imaging transmission unit 234, the imaging detection unit 235 100 operation abnormalities are detected.

  As described above, when the imaging detection unit 235 detects an abnormal operation of the CT scanner 200 or the chemical injection device 100, the imaging operation unit 233 stops the imaging operation in response to the abnormality detection, and the imaging transmission unit 234. Transmits data to the chemical injection device 100 to stop imaging.

  Further, since the image capturing operation unit 233 automatically terminates image capturing in response to the occurrence of an end condition such as timeout or sensor detection when image capturing is being performed, the image capturing and transmitting unit 234 also performs this capturing end as an execution operation. Transmits data to the chemical injection device 100.

  Various means of the chemical injection device 100 and the CT scanner 200 as described above are realized by using various types of hardware as necessary. The main components are functions of the CPUs 125 and 211 corresponding to the computer program. It is realized by doing.

  Such a computer program of the chemical injection device 100 receives, for example, input operations to the operation panel 104 such as injection start, injection end, and injection stop, and execution of imaging start, imaging end, and imaging stop from the CT scanner 200. The operation is received by the I / F unit 128, the syringe drive mechanism 120 performs a predetermined operation of injecting a chemical solution in response to these input operations or data reception, and the execution operation of itself corresponding to the input operation is performed by CT. Sending data to the scanner 200, returning data indicating completion of execution of a predetermined operation corresponding to data reception from the CT scanner 200, detecting various operational abnormalities of the chemical injection device 100, and transmitting data of execution operation If the execution completion is not received from the CT scanner 200 even after the allowable time has elapsed, Detecting an abnormality, stopping an injection operation when an operation abnormality is detected, sending data to the CT scanner 200 also when an injection stop corresponding to the operation abnormality is performed, and automatically ending the injection operation being executed under a predetermined condition Also, the completion of the injection is stored in an information storage medium such as the ROM 126 as software for causing the CPU 125 to execute processing operations such as transmitting data to the CT scanner 200.

  The computer program of the CT scanner 200 accepts input operations to the keyboard 219 such as imaging start, imaging end, and imaging stop, and performs operations such as injection start, injection end, and injection stop from the chemical solution injector 100, for example. Receiving data by the I / F unit 222, executing a predetermined image capturing operation by the imaging unit 201 in response to these input operations or data reception, and executing the own operation corresponding to the input operation. Data transmission, return of data indicating completion of execution of a predetermined operation corresponding to data reception from the chemical injection device 100, detection of various operational abnormalities of the CT scanner 200, and predetermined allowance from data transmission of execution operation If the execution completion data is not received from the chemical injection device 100 even after time has elapsed, an abnormal operation will occur. Taking out, stopping the imaging operation when an operation abnormality is detected, sending the data to the chemical injection device 100 also in response to the imaging abnormality, automatically ending the imaging operation being executed under a predetermined condition, This imaging end is also stored in an information storage medium such as the RAM 213 as software for causing the CPU 211 or the like to perform processing operations such as transmitting data to the chemical solution injection device 100.

[Operation of the embodiment]
In the configuration as described above, the fluoroscopic imaging system 1000 of the present embodiment can capture a fluoroscopic image of a subject with the CT scanner 200, and at the same time, a contrast medium is applied to the subject whose fluoroscopic image is captured by the liquid injector 100. Can be injected.

  In addition, the start of imaging by the CT scanner 200 and the start of injection by the chemical solution injection device 100 are linked, the end of imaging by the CT scanner 200 and the end of injection by the chemical solution injection device 100 are linked, and the imaging stop by the CT scanner 200 and the chemical solution injection device are linked. The injection stop by 100 can be linked.

  More specifically, when the fluoroscopic imaging system 1000 according to the present embodiment captures a fluoroscopic image from a subject injecting a contrast agent, the operator attaches the drug solution syringe 300 to the subject located in the imaging unit 201 of the CT scanner 200 with an extension tube. The chemical solution syringe 300 is connected to and loaded into the chemical solution injection device 100.

  Next, when the operator performs a predetermined operation on the chemical injection device 100 and the CT scanner 200, the chemical injection device 100 and the CT scanner 200 respectively detect the completion of preparation, as shown in FIGS. Steps S1, T1). In this state, the operator can manually control one of the chemical liquid injector 100 and the CT scanner 200 as desired, thereby controlling the operation of both.

  For example, when the operator performs an input operation on the CT scanner 200 to start imaging using the keyboard 219 or the like (step T7), the imaging start is transmitted to the drug solution injector 100 (step T8). Then, the chemical injection device 100 that has received this imaging start data (step S2), starts the chemical injection (step S3), and returns the injection start to the CT scanner 200 (step S4).

  The CT scanner 200 that has received the data of the start of injection (step T9) waits for a predetermined time until the contrast agent reaches the imaging position and exhibits a predetermined contrast effect (steps T11 and T12), and then is shown in FIG. Thus, the imaging of a fluoroscopic image is started (step T13).

  In addition, when the CT scanner 200 transmits data to the chemical injection device 100 in response to an input operation as described above (steps T7 to T9), the injection start is not returned as a data even after a predetermined time has elapsed. (Step T10), the occurrence of abnormality is notified and output by a guidance display on the display unit 220 (Step T15).

  For this reason, the operator can immediately recognize that a defect has occurred in the interlocking of the chemical liquid injector 100 while manually operating the CT scanner 200. Furthermore, since the CT scanner 200 automatically stops the imaging of the fluoroscopic image (step T16), it is automatically prevented that the imaging is performed without the contrast agent being injected into the subject.

  At this time, since the CT scanner 200 transmits data to the chemical injection device 100 to stop imaging (step T18), as shown in FIG. 8, the chemical injection device 100 that has received the data to stop imaging (step S15) Is stopped (step S16). For this reason, even if the chemical injection device 100 starts injection of the contrast agent, even if the CT scanner 200 stops imaging due to poor communication, only the chemical injection is continued while the imaging is stopped. Is automatically prevented.

  In addition, as described above, when the image capturing and the chemical injection of the chemical injection device 100 are performed under the initiative of the CT scanner 200 (steps T13 and S3), the CT scanner 200 has an abnormality such as a malfunction of the imaging unit 201. When the occurrence is detected (step T14), the abnormality occurrence notification, the image capturing stop and the image capturing stop transmission are also executed (steps T15, T17, T18), and the chemical solution injection device 100 also stops the chemical solution injection (step S16).

  In addition, the CT scanner 200 that is performing image capturing as described above (step T13) detects the end of imaging due to the completion of the setting operation or the like (step T21), or the operator inputs an end of imaging as desired. (Step T22), the image capturing is finished (Step T23).

  Furthermore, since the CT scanner 200 transmits data of the end of imaging to the chemical injection device 100 (step T24), the chemical injection device 100 that has received the data of completion of imaging (step S21) ends the chemical injection (step S22). For this reason, it is automatically prevented that the injecting of the contrast agent is inadvertently continued to the subject even though the imaging is completed.

  In addition, as described above, when the image capturing and the chemical injection of the chemical injection device 100 are performed under the initiative of the CT scanner 200 (steps T13 and S3), the chemical injection device 100 has an abnormality such as an excessive pressure of the chemical injection. When the occurrence is detected (step S10), the occurrence of abnormality is notified and output by a guidance display on the liquid crystal display 105 (step S11).

  Further, the chemical solution injection is automatically stopped (step S13), and this injection stop is transmitted to the CT scanner 200 (step S14). The CT scanner 200 that has received the data to stop the injection (step T19) stops the image capturing (step T20), so that it is automatically prevented from continuing the image capturing without injecting the contrast medium into the subject.

  In the case as described above, for example, the display unit 220 of the CT scanner 200 displays a display indicating that the imaging has been stopped due to the stop of the chemical injection, so that the operator has a malfunction in the chemical injection device 100. Can be confirmed quickly.

  Further, as described above, when the imaging and the chemical injection of the chemical injection device 100 are performed under the initiative of the CT scanner 200 (steps T13 and S3), the chemical injection device 100 finishes the injection when the setting operation is completed. Is detected (step S17), the chemical solution injection is terminated (step S19).

  Furthermore, since this injection end is transmitted to the CT scanner 200 (step S20), the CT scanner 200 which has received this injection end data (step T25), as shown in FIG. 11, has a predetermined effective contrast agent effect. After the image capturing is continued until time (steps T26 and T27), the image capturing is terminated (step T30). For this reason, even if the injection of the contrast agent is completed, the image capturing is continued for a time when the effect is effective, and the image capturing is automatically ended at the timing when the contrast effect disappears.

  The CT scanner 200 detects the end of imaging (step T28) when the imaging is continued until a predetermined time when the effect of the contrast agent is effective (step T26, T27) as described above. Even when the end of imaging is input as desired (step T29), the imaging is ended (step T30).

  Further, as described above, when the image capturing and the chemical injection of the chemical injection device 100 are performed under the initiative of the CT scanner 200 (steps T13 and S3), the operator can move the chemical injection device 100 from the position of the CT scanner 200. It is also possible to continue to work by moving to a position.

  In that case, when the operator inputs an operation to stop the injection to the liquid injector 100 by using the operation panel 104 or the like as desired (step S12), the liquid injector 100 stops the liquid injection (step S13), and this injection stop is detected as CT. Data is transmitted to the scanner 200 (step S14). The CT scanner 200 that has received the data to stop the injection (step T19) stops the image capturing (step T20), so that it is automatically prevented from continuing the image capturing without injecting the contrast medium into the subject.

  If the operator inputs an end of injection to the chemical injection device 100 as desired (step S18), the chemical injection device 100 completes the injection of chemical liquid (step S19), and then stores this injection completion in the CT scanner 200. Transmit (step S20).

  The CT scanner 200 that has received the data on the completion of the injection (step T25) continues imaging until the predetermined time as described above (steps T26 and T27), and then terminates the imaging (step T30). Image capture is automatically terminated at the time when disappears.

  In the above description, the image capturing and the chemical injection are started by manual operation on the CT scanner 200. However, the image capturing and the chemical injection can be started by manual operation on the chemical injection apparatus 100. It is. In that case, when the operator inputs an injection start operation to the drug solution injection device 100 as desired (step S5), the drug solution injection device 100 starts injection of a contrast medium into the subject (step S6), and starts this injection. Data is transmitted to the CT scanner 200 (step S7).

  The CT scanner 200 that has received the injection start data (step T2) waits until a predetermined time for the contrast agent to reach the imaging position and exhibit a predetermined contrast effect (steps T3 and T4), and then starts image capturing. (Step T5), the start of imaging is returned to the chemical injection device 100 (Step T6).

  When the chemical injection device 100 transmits the injection start to the CT scanner 200 corresponding to the input operation as described above (steps S5 to S7), the imaging start is not returned as a data even after a predetermined time has passed ( In steps S8 and S9), the occurrence of abnormality is notified and output by guidance display on the liquid crystal display 105 (step S11).

  For this reason, the operator can immediately recognize that a defect has occurred in the interlocking of the CT scanner 200 while manually operating the chemical liquid injector 100. Furthermore, since the medicinal solution injection device 100 automatically stops the medicinal solution injection (step T13), it is automatically prevented that the contrast agent is inadvertently injected into a subject who is not imaged.

  At this time, since the chemical injection device 100 transmits data on the injection stop to the CT scanner 200 (step S14), the chemical injection device 100 that has received the injection stop data (step T19) stops imaging (step T20). . For this reason, even when the CT scanner 200 starts imaging, even when the chemical injection device 100 stops injection due to poor communication, only the image pickup is continued with the chemical injection stopped. Is prevented.

[Effect of the embodiment]
In the fluoroscopic imaging system 1000 of this embodiment, the CT scanner 200 and the chemical solution injection device 100 perform data communication as described above, and the start / end / stop of the imaging and the chemical solution injection are interlocked. The scanner 200 and the chemical solution injector 100 can be operated appropriately and simply.

  For this reason, the imaging of the fluoroscopic image is automatically started when a predetermined time has elapsed from the start of the injection of the contrast agent, or one of the CT scanner 200 and the chemical solution injector 100 is completed or malfunctioned. When automatically stopped, the other can be automatically stopped at the same time.

  In addition, even when the operator manually operates one of the CT scanner 200 and the chemical injection device 100, since the malfunction that has occurred in the other is notified there, the operator is generated in the other who is not manually operated. It is possible to quickly recognize and deal with the malfunction that has occurred.

  Further, when the imaging of the CT scanner 200 and the chemical injection of the chemical injection device 100 are started in conjunction with each other, the image is waited until a predetermined time when the contrast medium reaches the imaging position and exhibits a predetermined contrast effect. Since the imaging is executed, it is possible to accurately execute the fluoroscopic image without requiring a delicate operation by the operator.

[Modification of Embodiment]
The present invention is not limited to the above embodiment, and various modifications are allowed without departing from the scope of the present invention. For example, in the above-described embodiment, it is exemplified that the chemical solution injection device 100 injects only the contrast medium from one chemical solution syringe 300 to the subject by one syringe drive mechanism 120. However, as shown in FIG. A drug solution injection device 400 that injects contrast medium and physiological saline from the two drug solution syringes 300 by the drive mechanism 120 is also possible (not shown).

  In the medical field where such a chemical solution injection device 400 is used, for the purpose of reducing the physical burden on the subject, a contrast medium is first injected and boosted with physiological saline in many cases. Therefore, when the present invention is applied to such a chemical liquid injector 400, it is possible to link the injection switching timing described above with the end timing of imaging of the CT scanner 200, and the like.

  More specifically, as described above, the start of injection of the contrast agent by the chemical solution injector 400 and the start of fluoroscopic image acquisition by the CT scanner 200 are linked, and the end of the imaging of the CT scanner 200 and the contrast agent of the chemical injector 400 are Although the end of the injection is also linked, the start of the physiological saline is also linked at this time. The imaging of the fluoroscopic image and the injection of the contrast medium are interlocked with each other, and the imaging end of the fluoroscopic image, the end of the injection of the contrast medium and the start of the physiological saline injection are also interlocked. It can be injected automatically at any timing.

  Further, in the above embodiment, when the operator manually operates the chemical injection device 100 to start the chemical injection, the CT scanner 200 that has received the data automatically waits until a predetermined time when the contrast effect is appropriate, and then the image is displayed. Illustrated starting imaging. However, it is also possible to start imaging when the CT scanner 200 that has received the start of injection data from the chemical injection device 100 starts measuring the contrast level and the contrast level becomes appropriate.

  In this case, for example, when the extension tube connecting the drug syringe 300 and the subject has dropped, the CT scanner 200 that has received the data of the start of injection from the drug injector 100 has a high contrast level even if a predetermined time has elapsed. Inappropriate injection can be detected because it is not appropriate, and the imaging and chemical injection can be stopped to notify the occurrence of abnormality.

  Furthermore, in the above embodiment, when the end of the imaging of the CT scanner 200 is linked with the end of the injection of the chemical injection device 100, the injection of the chemical is ended after the end of the imaging, so that the injection of the chemical immediately before the end of the imaging is optimal. Does not work properly. Therefore, in order to solve this, for example, the CT scanner 200 predicts the end time during image capture and transmits data to the chemical solution injector 100, and the chemical solution injector 100 injects the chemical solution a predetermined time before the end of imaging. It is also possible to end the process.

  It is also possible for the CT scanner 200 to detect the contrast level and transmit data to the drug solution injector 100, and to adjust the injection operation according to the contrast level received by the drug solution injector 100. In this case, since the contrast agent injection operation can be feedback-controlled in real time so that the contrast level is always optimal, it is possible to optimally capture a fluoroscopic image.

  Furthermore, in the above embodiment, the CT scanner 200 is illustrated as a fluoroscopic imaging device that is linked to the chemical solution injection device 100. As such a fluoroscopic imaging device, for example, an MRI apparatus, a PET apparatus, a CT angio apparatus, an MRA apparatus, and an ultrasonic wave Diagnostic devices, etc. are possible.

  Furthermore, in the above embodiment, it is assumed that the chemical injection device 100 and the CT scanner 200 perform wired communication with an electrical signal by the communication cable 224 made of an electric wire. For example, wired communication of an optical signal by an optical fiber cable or the like, optical signal Wireless communication by wireless communication, wireless communication by wireless radio waves, wireless communication by ultrasonic waves, and the like are also possible. However, in general, use of radio waves is not preferred in the medical field, and interference with a magnetic field is not preferred in the vicinity of the MRI apparatus. In such a case, wired / wireless communication of optical signals, ultrasonic Wireless communication or the like is preferable.

  Further, in this embodiment, various means are logically realized as various functions of the chemical liquid injector 100 and the CT scanner 200 by the CPUs 125 and 211 operating corresponding to the computer programs stored in the ROM 126 and the RAM 213. Exemplified that. However, each of these various means can be formed as unique hardware. A part of the various means can be stored as software in the ROM 126, the RAM 213, and the like, and a part can be formed as hardware.

1 is a schematic block diagram showing a logical structure of a fluoroscopic imaging system according to an embodiment of the present invention. It is a block diagram which shows the physical structure of a fluoroscopic imaging system. It is a perspective view which shows the external appearance of a fluoroscopic imaging system. It is a perspective view which shows the external appearance of a chemical injection device. It is a perspective view which shows the state which equips the injection | pouring head of a chemical | medical solution injection device with a chemical | medical solution syringe. It is a perspective view which shows the external appearance of the control unit of CT scanner which is a fluoroscopic imaging device. It is a flowchart which shows a part of processing operation of a chemical injection device. It is a flowchart which shows a part of processing operation of a chemical injection device. It is a flowchart which shows a part of processing operation of CT scanner. It is a flowchart which shows a part of processing operation of CT scanner. It is a flowchart which shows a part of processing operation of CT scanner. It is a perspective view which shows the principal part of the chemical | medical solution injection device of one modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100,400 Chemical injection apparatus 131 Injection operation means 132 Injection receiving means 133 Injection operation means 134 Injection transmission means 135 Injection detection means 200 CT scanner which is a fluoroscopic imaging device 231 Imaging operation means 232 Imaging reception means 233 Imaging operation means 234 Imaging transmission means 235 Imaging detection means 300 Chemical syringe

Claims (21)

A fluoroscopic imaging device that captures a fluoroscopic image of the subject, and a chemical solution injection device that injects a chemical solution into the subject to be imaged, and at least one of the fluoroscopic imaging device and the chemical solution injection device communicates data. In a fluoroscopic imaging system that links operations ,
Each of the fluoroscopic imaging device and the chemical injection device has an operation means for inputting and operating at least one of an operation start, an operation end and an operation stop, a receiving means for receiving an execution operation from a counterpart device, An operation means for executing its own predetermined operation corresponding to at least one of the input operation and the data reception; and a transmission means for transmitting data of at least its own execution operation corresponding to the input operation to the counterpart device. Have
At least one of the fluoroscopic imaging device and the chemical solution injection device is configured such that when the transmission unit further executes the predetermined operation in response to the data reception, execution completion is returned to the other device when the operation unit executes the predetermined operation. Has been
The device on the other side of the device configured so that the transmission means returns the execution completion data even if a predetermined time elapses from the data transmission of the execution operation by the transmission means. A fluoroscopic imaging system comprising detecting means for detecting an operation abnormality of the counterpart device when no execution completion data is received from the counterpart device . The transmission means of the fluoroscopic imaging device is configured to return data indicating the completion of execution,
The fluoroscopic imaging system according to claim 1, wherein the chemical liquid injector includes the detection unit. The transmission means of the chemical injection device is configured to return data indicating the completion of execution,
The fluoroscopic imaging system according to claim 1, wherein the fluoroscopic imaging apparatus includes the detection unit. The drug solution injection device individually injects a contrast medium and a physiological saline for contrasting the fluoroscopic image as the drug solution to the subject,
The imaging start by the fluoroscopic imaging device and the injection start of the contrast agent by the chemical solution injection device are interlocked,
2. The fluoroscopic imaging system according to claim 1 , wherein the end of imaging by the fluoroscopic imaging device, the end of injection of the contrast agent by the chemical solution injector and the start of injection of the physiological saline are linked. The diagnostic imaging apparatus, said has an imaging detector as the detection means, the image pickup detecting means, fluoroscopic imaging system according to 請 Motomeko 1 you still detecting abnormal operation of the image capturing. The liquid injector has a has an injection detector as detecting means, infusion detecting means, fluoroscopic imaging system according to 請 Motomeko 1 you still detecting abnormal operation of the liquid injection. The chemical solution injection device is configured to inject a contrast agent for contrasting the fluoroscopic image as the chemical solution to the subject, and the transmission means returns the execution completion to the fluoroscopic imaging device,
The fluoroscopic imaging apparatus further includes a contrast detection unit that detects a contrast degree of the fluoroscopic image to be captured by the contrast agent , and has an imaging detection unit as the detection unit, and the imaging detection unit starts the imaging fluoroscopic imaging system according to 請 Motomeko 1 that runs abnormality further detection of a predetermined even imaging time has elapsed the contrast level does not satisfy the predetermined tolerance with the diagnostic imaging device from. It said operating means liquid injector stops the injection operation in response to the detection of the operation abnormality,
The transmission means of the chemical injection device transmits the suspension of the injection operation to the fluoroscopic imaging device,
The receiving means of the fluoroscopic imaging device receives the injection stop data from the chemical liquid injector,
It said operating means fluoroscopic imaging apparatus, fluoroscopic imaging system according to claim 2 to stop correspondingly IMAGING operation data reception of the infusion discontinuation. The operating means of the fluoroscopic imaging device stops the imaging operation in response to the abnormality detection,
The transmission means of the fluoroscopic imaging device transmits data to the chemical injection device to stop the imaging operation ,
The receiving means of the chemical liquid injector receives data from the fluoroscopic imaging device to stop imaging,
It said operating means of the liquid medicine injection apparatus, fluoroscopic imaging system according to claim 2 to stop the note ON operation in response to data reception of the imaging stop. The imaging operation means is Note starts the receiving means of the diagnostic imaging apparatus from the liquid injector to start is input operation input operation is data receives the execution operation after a predetermined waiting time has elapsed the imaging operation The fluoroscopic imaging system according to claim 1 to be executed. The medicinal solution injection device injects a contrast agent for imaging the fluoroscopic image as the medicinal solution into the subject,
The fluoroscopic imaging apparatus has a contrast detection means for detecting a contrast level of the fluoroscopic image to be captured by the contrast agent,
The transmission means of the fluoroscopic imaging device transmits the detected contrast level to the drug solution injector,
The receiving means of the chemical injection device receives the contrast level from the fluoroscopic imaging device,
Fluoroscopic imaging system of claim 1 wherein the operating means of the liquid injector is to adjust the note ON operation in response to the contrast level. 2. The fluoroscopic imaging system according to claim 1 , wherein the transmission unit of the fluoroscopic imaging device is configured to return execution completion data when executing a predetermined operation in response to data reception of the execution operation from the chemical injection device . A chemical injection device,
Injection operation means for inputting at least one of injection start, injection end, and injection stop;
Injection receiving means for receiving execution operation data from the fluoroscopic imaging device;
Injection operation means for performing a predetermined operation of injecting a chemical solution in response to at least one of the input operation and the data reception;
Injection transmission means for transmitting data to the fluoroscopic imaging apparatus at least for the execution operation corresponding to the input operation;
Injection detection for detecting an abnormal operation of the fluoroscopic imaging device if the injection receiving unit does not receive execution completion data from the fluoroscopic imaging device even after a predetermined time has elapsed since the transmission of data of the execution operation by the injection transmitting unit. Means,
A chemical injection device. The injected chemical is a contrast agent that contrasts fluoroscopic images,
Said injection receiving means, said contrast index from the imaging diagnostic apparatus and the data receiving with a contrast detecting means for detecting a contrast level by said contrast agent fluoroscopic image captured,
It said injection operation means, liquid injector according to claim 12 for adjusting a note ON operation in response to the contrast level. 2. The fluoroscopic imaging system according to claim 1 , wherein the transmission unit of the chemical injection device is configured to return execution completion data when a predetermined operation is executed in response to data reception of the execution operation from the fluoroscopic imaging device . A fluoroscopic imaging device,
An imaging operation means in which at least one of imaging start, imaging end, and imaging stop is input;
Imaging receiving means for receiving execution operation data from the chemical injection device;
Imaging operation means for executing a predetermined operation of imaging in response to at least one of the input operation and the data reception;
Imaging transmission means for transmitting data to the chemical injection device at least for the execution operation corresponding to the input operation;
Imaging detection for detecting an abnormal operation of the chemical liquid injector if the imaging receiver does not receive execution completion data from the chemical injector even after a predetermined time has elapsed since the transmission of data of the execution operation by the imaging transmitter Means,
A fluoroscopic imaging apparatus. The injected chemical is a contrast agent that contrasts fluoroscopic images,
Further comprising a contrast detecting means for detecting a degree of contrast by the contrast medium of the fluoroscopic image shooting image,
The fluoroscopic imaging apparatus according to claim 14, wherein the imaging transmission unit transmits data of the detected contrast level to the chemical solution injector. A computer program for the chemical injection device according to claim 12 ,
Receiving at least one input operation of injection start, injection end, and injection stop;
Receiving an execution operation from the fluoroscopic imaging device;
Performing a predetermined liquid injection operation corresponding to at least one of the input operation and the data reception;
Transmitting at least its own execution operation corresponding to the input operation to the fluoroscopic imaging device;
Detecting an abnormal operation of the fluoroscopic imaging device if the injection receiving unit does not receive execution completion data from the fluoroscopic imaging device even after a predetermined time has elapsed since data transmission of the execution operation by the injection transmitting unit;
Is a computer program for causing the medicinal solution injection device to execute. The injected chemical is a contrast agent that contrasts fluoroscopic images,
Receiving the contrast level from the fluoroscopic imaging device having a contrast detection means for detecting a contrast level of the contrast agent in the fluoroscopic image to be captured ;
Adjusting the note ON operation in response to the contrast level,
The computer program according to claim 16, further comprising causing the medicinal-solution injecting device to execute. A computer program for the fluoroscopic imaging device according to claim 14 ,
Receiving at least one input operation of imaging start, imaging end, and imaging stop,
Receiving data of an execution operation from the chemical injection device;
Executing a predetermined operation of imaging in response to at least one of the input operation and the data reception;
Transmitting at least the own operation corresponding to the input operation to the chemical injection device,
Detecting an abnormal operation of the chemical injection device if the imaging reception means does not receive execution completion data from the chemical injection device even after a predetermined time has elapsed since data transmission of the execution operation by the imaging transmission means;
A computer program for causing the fluoroscopic imaging apparatus to execute. The injected chemical is a contrast agent that contrasts fluoroscopic images,
Detecting the degree of contrast by the contrast agent of the fluoroscopic image to be imaged,
Transmitting the detected contrast level to the chemical injection device;
The computer program according to claim 18, further comprising causing the fluoroscopic imaging apparatus to execute. An information storage medium storing a computer program for a chemical injection device that injects a chemical into a subject whose fluoroscopic image is captured by the fluoroscopic imaging device,
An information storage medium storing the computer program according to claim 16 or 17 . An information storage medium storing a computer program for a fluoroscopic imaging device that captures a fluoroscopic image of a subject into which a chemical solution is injected by the chemical injection device,
An information storage medium in which the computer program according to claim 18 or 19 is stored.

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