JP4350460B2 - X-ray image diagnostic apparatus and control program for X-ray image diagnostic apparatus - Google Patents

Description

The present invention relates to an X-ray image diagnostic apparatus and an X-ray image diagnostic apparatus control program capable of obtaining image data based on X-rays transmitted through a subject in medical diagnosis.

The X-ray image diagnostic apparatus transmits X-rays into a subject and images the transmitted image. X-ray images can be obtained by irradiating strong X-rays in a short period of time, "imaging" to obtain a clearer image, and weak X-rays when continuously irradiating X-rays. There is “perspective” to obtain images. X-ray diagnostic imaging apparatuses have a wide range of applications, and various apparatuses have been developed for different diagnostic purposes.

For example, an X-ray diagnostic imaging apparatus for a circulatory system is an apparatus for performing an angiographic examination in which a contrast medium is injected into a blood vessel and the flow is captured by an X-ray image.

A typical angiographic examination is DSA (digital subtraction angiography). The basic principle of DSA is a technique for extracting an image of only a blood vessel by performing subtraction processing (subtraction processing) between a basic image (mask image) before injection of a contrast agent and an image (contrast image) after injection. .

Furthermore, a rotation DSA or a stepping DSA can be cited as a technique applying DSA. Rotating DSA is a technique for grasping a blood vessel three-dimensionally. In this method, X-ray imaging is performed while rotating the X-ray generation device and the X-ray detection device, which are arranged opposite to each other, around the subject. Further, after injecting the contrast agent, X-ray imaging is performed while rotating in the same manner. In this way, the blood vessel can be grasped three-dimensionally by subjecting the obtained two X-ray imaging images to subtraction processing. Furthermore, a three-dimensional image is obtained by reconstructing the obtained image.

On the other hand, stepping DSA is a technique used for lower limb angiography. In this method, before and after the contrast medium injection, X-ray imaging is performed while stepping the position of the imaging means (X-ray generation device and X-ray detection device) with respect to the subject in the direction of the lower limbs, so that images of blood vessels over the entire lower limb Is what you get.

In the X-ray image diagnosis of a blood vessel having a complicated structure, the obtained DSA image can be used as a mask image to facilitate grasping of the blood vessel position when the catheter is advanced to the target blood vessel site. is there. In such a case, a DSA image acquired in advance and a real-time fluoroscopic image during catheter insertion are displayed in a superimposed manner on the monitor device to obtain a fluoroscopic road map image. By referring to this fluoroscopic road map image, it becomes easy to grasp the position of the catheter, and it is possible to insert the catheter to the target site accurately and quickly along the blood vessel running.

However, with the development of such photographing techniques, operators have been required to perform complicated operations. As a complicated operation, for example, a fitting operation for obtaining a perspective road map image can be mentioned.

If the part of the subject displayed on the mask image and the real-time fluoroscopic image does not overlap properly, it cannot be an indicator of the exact position of the catheter. Accordingly, a function of automatically reproducing the position of the photographing mechanism at the time of photographing the mask image is provided at the time of fluoroscopic photographing. However, the relative position between the subject and the apparatus at the time of past imaging cannot be completely reproduced.

Therefore, it is necessary to manually drive the position of each part of the apparatus as the final fine adjustment. Therefore, while watching the monitor device in which both the mask image and the fluoroscopic image are superimposed and displayed, the position of the imaging mechanism with respect to the subject is adjusted via the operation unit, and the operation of combining the two images is performed. . Even when the catheter is being inserted, if the position of the subject has moved, it is necessary to adjust the posture of the apparatus each time.

For operators who are unfamiliar with the operation, this alignment work is not easy, so the time until completion is longer than that with an operator accustomed to the operation. As a result, X-ray irradiation is performed on the subject for a long time. Therefore, an operator who is unfamiliar with the operation needs practice and training for learning the operation.

In addition, with the development of user interfaces, operations with a higher degree of freedom have become possible. The items that can be set by the operator include, for example, settings such as voltage and current supplied to the X-ray generator, opening of the X-ray diaphragm and X-ray irradiation time in the X-ray detector. Further, in the above-mentioned circulatory system diagnosis, the amount of contrast medium injected and the injection speed, and various settings in the sequence operation in the above-described rotating DSA and stepping DSA can be mentioned.

On the other hand, such an increase in the number of setting items has a drawback that the operation is complicated. In other words, if there are many setting items that the operator has to set, the user interface for setting and controlling these functions has to be somewhat complicated. Therefore, it is difficult for an operator to learn the operation of the apparatus by referring to the instruction manual of the X-ray diagnostic imaging apparatus. Therefore, in order for an operator to perform a clinical diagnosis smoothly, practice and training for acquiring device operation are indispensable.

For practice and training of device operation, there are cases where operation is performed while actually performing X-ray irradiation. For example, the above-described practice of fitting is generally performed by actually acquiring an X-ray image of an arbitrary object. Such a fitting operation is performed in the examination room. At that time, even if X-ray protective clothing is worn and some protective measures are taken, X-ray exposure cannot be completely prevented. Therefore, when it is desired to mainly learn the operation of components such as the bed mechanism constituting the apparatus, there is a possibility of unnecessary exposure to X-rays.

Further, the operation practice of the rotation DSA is generally performed in accordance with the above-described operation flow. In general, alignment with a region of interest is also performed in the examination room with reference to an X-ray fluoroscopic image, so that there is a possibility of unnecessary exposure.

Further, X-ray irradiation is also performed in test imaging, determination of imaging conditions, and main imaging, and the posture of the apparatus is frequently changed. The apparatus itself is composed of various parts and components that are consumables such as an X-ray tube. Therefore, if the operation of the apparatus is repeated, the deterioration of the consumables and components progresses.

In view of such a problem, it is required to reduce the unnecessary exposure and the deterioration of consumables during the device operation practice while realizing acquisition of a complicated device operation.

For example, as a response to such a request, Patent Document 1 is configured to select a training video by an input to a diagnostic system and transmit the training video from the diagnostic system to a central service facility via a network. The system is shown. With such a configuration, online video training can be realized in many networked medical diagnosis systems.
JP 2001-229292 A

  However, since the conventional practice system shown in Patent Document 1 is training by video supplied through a network, various components are applied to an X-ray diagnostic imaging apparatus that must be operated in a plurality of steps. If it is difficult to get a practice environment close to the actual diagnosis. For example, the practice of fitting is practiced by actually changing the posture of the apparatus, which is closer to the actual diagnosis method and can be easily and quickly learned. However, the practice system shown in Patent Document 1 cannot move the actual machine. Furthermore, when practicing the operation flow such as the above-described rotation DSA, it is difficult to obtain a complicated setting input process and a simulation result reflecting the input in the conventional practice system disclosed in Patent Document 1. is there. In other words, it must be said that the operation acquisition is insufficient.

  Therefore, an object of the present invention is to provide an X-ray image diagnostic apparatus and a control program for the X-ray image diagnostic apparatus that enable operation practice under conditions close to actual diagnosis while reducing exposure and deterioration of consumables. And

In order to achieve the above object, an X-ray diagnostic imaging apparatus according to the present invention includes a placement means for placing a subject, an X-ray generation means for exposing the subject to X-rays, X-ray detection means for detecting X-rays transmitted through the subject, support means for supporting the X-ray generation means and the X-ray detection means, the placement means, the X-ray generation means, A plurality of first control means for controlling the driving of each component of the X-ray detection means and the support means; and a plurality of first control means for generating data generated when each of the components is operating. A plurality of first control means and a selection means for selectively driving the plurality of first control means and the second control means, and a part of the plurality of first control means is selectively operated. Driven by the remaining first control means. Characterized in that to drive the second control means for generating the data component occurs in a simulated manner.
The control program of the X-ray image diagnostic apparatus according to the present invention includes a placement means for placing a subject, an X-ray generation means for exposing the subject to X-rays, and the subject. A computer for controlling the X-ray diagnostic imaging apparatus, comprising: X-ray detection means for detecting transmitted X-rays; and support means for supporting the X-ray generation means and the X-ray detection means. A plurality of first control means for controlling driving of each component of the placement means, the X-ray generation means, the X-ray detection means, and the support means, and occurs when each of the components is operating. Functioning as a plurality of second control means for generating data in a pseudo manner and a selection means for selectively driving the plurality of first control means and the second control means, respectively. Select some control means Control for the X-ray diagnostic imaging apparatus for driving the second control means for pseudo-generating data generated by the remaining components driven by the first control means in the case of operation It is characterized by being a program.

According to the present invention, exposure and deterioration of consumables can be reduced, and operations can be acquired easily and quickly.

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

  FIG. 1 is a block diagram showing an X-ray image diagnostic apparatus according to the present invention.

The X-ray diagnostic imaging apparatus according to the present embodiment is suitable for, for example, a circulatory system, and supplies an X-ray tube 1 for exposing X-rays and high-voltage power to the X-ray tube 1. X-ray generation control device 2, an X-ray detector 3 for detecting X-rays transmitted through the subject 1 a, an X-ray tube 1 and an X-ray detector 3 are held at both ends, and is substantially C-shaped. And a C-arm support mechanism 4 that supports the C-curve that is curved in a rotatable and slidable manner.

The X-ray diagnostic imaging apparatus includes a bed mechanism 5 having a top plate for placing a subject 1a, an image processing apparatus 6 for performing gradation processing on a video signal obtained from the X-ray detector 3, and the like. The X-ray image monitor 7 for displaying the image, the image storage medium 8 for storing the obtained image, the X-ray generation control device 2, the X-ray detector 3, the C-arm support mechanism 4 and A system control unit 9 having an arithmetic unit (CPU) and a memory for organically controlling the bed mechanism 5 and an operation unit 10 for an operator to appropriately operate each unit are configured.

The X-ray detector 3 may be composed of a combination of an image intensifier (II), an optical system and a TV camera, or a flat panel detector (hereinafter referred to as “FPD”). Good. Note that even if the FPD is a direct conversion type in which the charge generated when the photoconductor absorbs X-rays is directly used as a signal, the X-ray is once absorbed by the phosphor and the generated light is charged by the photodiode. It may be either an indirect conversion type that converts the signal into a signal.

The operation unit 10 can include various accompanying devices such as an operation panel provided to be attached to each component for driving and controlling the component and a terminal for controlling the entire system including each component. In this case, the terminal preferably has a graphic user interface (hereinafter referred to as “GUI”) in order to simplify the operation of the operator.

FIG. 2 is a block diagram specifically showing components of the system control apparatus of FIG. 1 and system control software 9a incorporated therein. The system control software 9a includes actual control tasks 16 to 20 for actually controlling the components of the X-ray generation control device 2, the C-arm support mechanism 4, the bed mechanism 5, the X-ray detector 3, and the image processing device 6. And a virtual control task unit 12 including virtual control tasks 21 to 25 that are physically separated from each component.

The system control software 9a includes a system control task 13 for performing overall control of the system including selection and switching of these tasks, and data for controlling the system including determination of selection and switching. The system setting data 14 stored and the virtual operation data set unit 15 including virtual operation data sets 26 to 30 storing pseudo data used when the virtual control tasks 21 to 25 operate are configured. ing.

  The actual control tasks 16 to 20 are software for executing a driving mode for controlling the actual driving of each component. The actual control task 16 of the X-ray generation control device 2 and the actual operation of the C-arm support mechanism 4 corresponding to each component. The control task 17, the actual control task 18 of the bed mechanism 5, the actual control task 19 of the X-ray detector 3, and the actual control task 20 of the image processing apparatus 6, are the parts that actually communicate with and control each component. is there.

Information given from the operator to the operation unit 10 is sent to the corresponding components via the actual control tasks 16 to 20, and conversely, information regarding the operation from each component also passes through the actual control tasks 16 to 20. It is sent to the system control task 13 and other related actual control tasks.

  The virtual control tasks 21 to 25 are software for executing the virtual drive mode of each component. The virtual control task 21 of the X-ray generation control device 5, the virtual control task 22 of the C-arm support mechanism 4, and the bed corresponding to each component The virtual control task 23 of the mechanism 5, the virtual control task 24 of the X-ray detector 3, and the virtual control task 25 of the image processing apparatus 6 are included.

Although the virtual control tasks 21 to 25 do not actually control each component, virtual control information is sent to other actual control tasks that do not correspond to the component as if the corresponding component is actually operating. Have the role of sending.

Accordingly, each of the virtual control tasks 21 to 25 has a virtual operation data set unit 15 necessary for generating a virtual control task of a corresponding component in order to realize a virtual operation. In addition, virtual image data is incorporated in advance in the X-ray image diagnostic apparatus. This virtual image data may be incorporated in the X-ray detector 3 or stored in the image storage medium 8. Further, it is assumed that this image has an image matrix size in consideration of the movement amount of the C-arm support mechanism 4 and the bed mechanism 5.

The operation of the thus configured X-ray image diagnostic apparatus will be described with reference to FIGS.

FIG. 3 is a flowchart showing the flow of processing using the system control software 9a. First, in S11, when the operator selects what operation practice to perform, the system control task 13 acquires information on the setting. Here, the setting input by the operator may be selection of device operation to be practiced or selection of which component is to be virtually driven.

Next, as step S <b> 12, the system control task 13 selects data for the corresponding system setting from the system setting data 14 based on the acquired input information. That is, the system control setting for realizing the operation practice desired by the operator is determined.

In step S13, the system control task 13 performs initial control of the system. Here, the initial control includes selection or switching between a virtual control task and an actual control task, initial setting of components that operate virtually, initial operation, and the like.

Next, in step S14, a necessary task is driven by the operation of the operator. Then, according to the system setting data 14, the task corresponding to the operation of the operator among the virtual control tasks transmits the pseudo data to the predetermined task, and the task corresponding to the operation among the actual control tasks transmits the drive data to the predetermined component, or Send to task. Here, in accordance with the system setting data 14, when the other data is necessary for transmission of one of the pseudo data and the drive data, the other data is referred to.

Further, in step S15, it is also determined whether or not the operation for which the system control task 13 has been set is finished. If it is finished, the operation is finished. If it is not finished, the process returns to step S14.

Next, a first operation example in the case of practicing operation of the X-ray image diagnostic apparatus will be specifically described. FIG. 4 is a flowchart showing an example of this operation, and each step corresponds to a step in each stage described in FIG. This first operation example is an example in the case where an operator practices matching of a mask image and a fluoroscopic image.

First, in step S21, the operator uses the operation unit 10 to set what kind of operation practice is to be performed. Here, it is assumed that the practice of matching the mask image and the fluoroscopic image by operating the bed mechanism 5 and the C-arm support mechanism 4 is selected. In this operation practice, for example, X-ray irradiation is virtually performed in order to reduce exposure and prevent wear of the X-ray tube 1. That is, the X-ray generation operation control of the X-ray tube 1 and the X-ray generation control device 2 is not performed, the operation control for the X-ray detection of the X-ray detector 3 is not performed, and no X-ray irradiation is performed. Is set to operate in a virtual manner.

Next, as step S22, the system setting data 14 in the system control software 9a is selected through the system control task 13 by the above-described operator setting. By reading it out, the system control task 13 can perform control necessary for the operation of the X-ray image diagnostic apparatus in the setting input by the operator.

Next, as step S23, the system control task 13 refers to the data in the selected system setting data and selects the required virtual control task and actual control task. In this example, both tasks of the X-ray generation control device 2 and the X-ray detector 3 are switched to virtual control tasks 21 and 24.

Further, the system control task 13 extracts appropriate image data from virtual image data stored in advance in the virtual motion data sets 26 and 29 of the virtual motion data set unit 15. As an initial operation, the system control task 13 displays the image as a virtual mask image and a perspective image at an appropriate position on one X-ray image monitor 7 via the image processing device 6. For example, the positions on both X-ray image monitors 7 are shifted and displayed so as to occur in actual X-ray image diagnosis.

Next, in step S24, the operator operates the C arm support mechanism 4 and the bed mechanism 5 using the operation unit 10 in order to perform alignment of the fluoroscopic images. The actual control tasks 17 and 18 of the C-arm support mechanism 4 and the bed mechanism 5 are driven by transmitting the drive data to the respective components.

At this time, the operator drives the bed mechanism 5 so that the target fluoroscopic part comes to a position where the X-ray tube 1 and the X-ray detector 3 face each other. At the same time, the fluoroscopic direction with respect to the subject 1a is determined so as to be suitable for the mask image by rotating the C-arm support mechanism 4 about the fulcrum as an axis or sliding along the bending direction.

At the same time, the virtual setting task 24 of the X-ray detector 3 acquires the position information of the C arm support mechanism 4 and the bed mechanism 5 according to the setting in the system setting data 14. Further, the virtual setting task 24 of the X-ray detector 3 calls virtual image data from the virtual data set 29 of the X-ray detector 3 based on the acquired position information.

The virtual image data called here is set at the center position on the data matrix before the work starts, and the cutout position is changed according to the position information of the bed mechanism 5 and the C arm support mechanism 4. The cut-out position is calculated by arbitrarily setting the relationship between the pixel size of the image data and the actual position information, and converting the position information of the three orthogonal axes according to the relationship. The called image data is transmitted to the actual control task 20 of the image processing apparatus 6, and a virtual perspective image is displayed on the X-ray image monitor 7.

An operator drives the C-arm support mechanism 4 and the bed mechanism 5 while referring to the virtual perspective image and the mask image, and practice fitting. If the shapes on the two images overlap in step S25, the fitting practice ends.

Further, the virtual setting task 24 of the X-ray detector 3 may move the display of the mask image on the X-ray image monitor 7 by mimicking the variation of the subject 1a. In this case, when the operator inputs an end of practice at an arbitrary time, the matching practice is completed.

According to the above-described embodiment, it is possible to acquire operation without actually using X-rays in actual imaging (here, alignment with a mask image by X-ray fluoroscopy). That is, only by not irradiating with X-rays, other operations can be performed using the same operation unit as in actual imaging using X-rays. In addition, despite the fact that X-rays are not used, the X-ray diagnostic imaging device behaves as if actual X-ray images were collected in real time and operated in a state closer to actual imaging. Can practice. Therefore, it is possible to perform the same operation practice as in practice under conditions that do not use X-rays, so you can practice as many times as you like using actual equipment without worrying about deterioration due to X-ray irradiation such as exposure and tube exposure. It can be performed. Therefore, it is possible to easily and quickly learn the operation technique, and it is possible to suppress exposure during non-photographing and to reduce deterioration of consumables such as a tube (running cost).

Next, a second operation example will be described using the rotation DSA as an example. Rotating DSA is a technique for grasping a blood vessel three-dimensionally. In this method, first, the X-ray tube 1 and the X-ray detector 3 are opposed to each other, and X-ray imaging is performed while rotating around the subject 1a. Further, after injecting the contrast agent, X-ray imaging is performed while rotating in the same manner. In this way, the blood vessel is three-dimensionally grasped by subjecting the obtained two X-ray imaging images to subtraction processing. In the rotation DSA, there are various setting items such as settings related to rotation of the C-arm support mechanism 4 in addition to the imaging conditions. For this reason, the operator generally performs various settings and imaging of the rotation DSA according to an operation sequence incorporated in the system control device 9. First, an operation sequence for actual diagnosis will be described with reference to FIG.

6. First, in step S31, an imaging position is adjusted by adjusting the positions of the C arm support mechanism 4 and the bed mechanism 5 including the X-ray tube 1 and the X-ray detector 3 with respect to the subject 1a while performing X-ray fluoroscopy. To decide.

In step S32, a shooting program is selected. The imaging program here includes, for example, a rotational DSA image collection form, and there are image collection forms such as MC, MCC, MRC, and MRCC. Here, M represents mask collection, R represents return operation for returning the posture of the apparatus to the rotation start position, and C represents contrast collection. For example, when the MRC image acquisition form is selected, after the mask acquisition, a return operation is performed, and then the operation of contrast acquisition is performed.

In step S33, the C-arm support mechanism 4 and the bed mechanism 5 are operated to align the imaging region with the isocenter. Here, the isocenter corresponds to the intersection of the rotation axis center of the C-arm support mechanism 4 and the X-ray beam. If this operation is mistaken, it will be difficult to reconstruct an X-ray image collected later.

In step S34, the photographing conditions are determined. The imaging region is moved to a portion where the body thickness of the subject is thin, and imaging conditions are determined so that X-rays are transmitted while irradiating X-rays.

Next, as step S35, test photographing is performed. After imaging, the obtained X-ray image is confirmed on the X-ray image monitor 7. If an appropriate image is not obtained, the shooting conditions are manually determined again.

In step S36, the rotation start position and end position of the C-arm support mechanism 4 are set. At this time, for example, the rotation start position and the end position may be preset in the system in advance, or may be determined manually by the operator.

In step S37, all the settings are confirmed again. If there is no problem, the main photographing is started based on the set conditions.

As described above, when photographing a rotating DSA, an operator must follow a complicated operation sequence including a number of steps. Therefore, in order to realize a smooth operation in actual shooting, it is very important to acquire an operation technique through prior operation practice using an actual machine.

A case where such a rotating DSA photographing operation practice is performed will be described. First, the operator selects what kind of operation to practice. Here, practice of operating the rotating DSA is selected. Furthermore, a setting is selected for whether the control task corresponding to each component is to be virtual control or actual control. This setting is built in the system setting data 14 so that the operator can select it. Here, it is assumed that the user can select from three preset practice menus (virtual mode selection menu) shown in FIG. The first to third settings in FIG. 5 indicate which component is actually controlled by the actual control task and which component is virtually controlled by the virtual control task.

Here, a case will be described in which the operator selects the first setting from the practice menu of FIG. 5 to practice the rotation DSA shooting. When this setting is selected, the system control task 13 starts up the virtual control task 21 of the X-ray generation control device 2 and the virtual control task 24 of the X-ray detector 3, and the X-ray generation control device 2 and the X-ray detector 3. Becomes a virtual control state (that is, a control state without X-ray irradiation), and other components are actually controlled by the actual control task.

The operation of the X-ray image diagnostic apparatus when the first setting is selected (that is, practice mode) will be described with reference to FIG. Each step in FIG. 7 corresponds to each step in FIG.

First, in step S41, a virtual perspective image is displayed on the X-ray image monitor 7. The operator refers to this image and virtually determines the shooting position. At this time, it is assumed that the displayed image simulates the shape of a human body.

Next, an imaging program is selected in step S42, and in step S43, the operator operates the C arm support mechanism 4 and the bed mechanism 5 to align the imaging region with the isocenter. In step S42 and step S43 in FIG. 6, since X-rays are not necessary, the X-ray diagnostic imaging apparatus operates in the same manner as in actual imaging.

In step S44, since the X-ray generation control device 2 is set to the virtual mode, the X-ray is not actually used for fluoroscopy, but instead the imaging condition corresponding to the position on the virtual image data is set on the device. 2 and the system control software 9a in FIG. 2 calls up the shooting conditions corresponding to the determined position on the virtual image data.

In step S45, as in step S44, since the X-ray generation control device 2 is set to the virtual mode, test imaging using X-rays is not actually performed. Instead, the system control software 9a performs step S44. A virtual captured image based on the acquired imaging conditions is displayed on the X-ray image monitor 7. Then, the operator examines whether or not the photographing condition set based on the displayed virtual image (test image) is appropriate (whether there is no abnormality on the test image). If, as a result of examining the virtual image, it is determined that the imaging condition is not appropriate, the imaging condition is changed and adjusted manually, and the virtual image based on the imaging condition adjusted again using the system control software 9a is X-rayed. It is examined whether or not the photographing conditions displayed on the image monitor 7 and set again are appropriate. If it is determined that the shooting conditions are appropriate, the shooting conditions are determined, and the process proceeds to the next step S46.

In step S46, the rotation start position and end position of the C-arm support mechanism 4 are set. Next, in step S47, virtual main imaging of rotation DSA is performed based on the rotation start position and end position of the C-arm support mechanism 4 set in step S46 and the imaging conditions determined in step S44. In step S47, since the X-ray generation control device 2 is now set to the virtual mode, the test imaging using the X-ray is not actually performed, but instead, the system control software 9a acquires the imaging obtained in step S44. A virtual captured image (DSA image) based on the conditions is displayed on the X-ray image monitor 7.

According to the above-described embodiment, based on a preset practice mode, it is possible to acquire operation along an imaging flow during actual imaging (here, imaging with a rotating DSA) without using X-rays. . That is, only by not irradiating with X-rays, other operations can be performed with the same steps as in actual imaging using X-rays. Even though X-rays are not used, the X-ray diagnostic imaging apparatus behaves as if X-ray images are collected in real time by taking an actual rotational DSA, so it is closer to actual imaging. You can practice operation in the state. Therefore, it is possible to perform the same operation practice as in practice under conditions that do not use X-rays, so you can practice as many times as you like using actual equipment without worrying about deterioration due to X-ray irradiation such as exposure and tube exposure. It can be performed. Therefore, it is possible to easily and quickly learn operation techniques and shooting procedures according to the type of shooting, and to reduce exposure during non-shooting and to reduce deterioration of consumables such as tubes (running cost). be able to.

Next, a case will be described in which the operator selects the second setting from the practice menu of FIG. The second setting is a setting for performing the rotation DSA imaging practice by performing virtual control of the rotation of the C-arm support mechanism 4 when performing virtual main imaging without performing X-ray irradiation. When this second setting is selected, the C-arm support mechanism 4 does not rotate in the main photographing step. However, since the photographing condition and the posture condition are determined, a virtual photographed image can be obtained in the same manner as in the first setting.

According to such an embodiment, based on a preset practice mode, operation acquisition along an imaging flow in actual imaging can be performed without rotating the X-ray radiation and the C-arm support mechanism 4. it can. That is, the operation can be performed with the same steps as in actual imaging except for the X-ray irradiation and the rotation of the C-arm support mechanism 4. Even in this case, the X-ray diagnostic imaging apparatus behaves as if the actual rotation DSA imaging is performed even though the C-arm support mechanism 4 is not rotated in the virtual main imaging step. The operation practice can be carried out in a state closer to actual shooting. Therefore, since the operation practice similar to the practice can be performed under the condition where the C-arm support mechanism 4 is not rotated, in addition to the effect of not performing the X-ray emission in the first setting, the rotation of the C-arm support mechanism. There is an effect that the operation can be practiced as many times as possible using the actual machine, without worrying about exhaustion of the mechanism part due to the above, or securing the space around the apparatus accompanying the rotation of the C-arm support mechanism 4. Therefore, it is possible to easily and quickly learn operation techniques and shooting procedures according to the type of shooting, and it is possible to reduce the consumption of the apparatus during non-shooting (reduce running cost).

Furthermore, a case will be described in which the operator selects the third setting from the practice menu of FIG. This third setting is a setting for performing rotational DSA imaging practice in a state where all components of the C-arm support mechanism 4, the bed mechanism 5, the X-ray generation control device 2, and the X-ray detector 3 are in a virtual control state. It is.

When this setting is selected, all of the virtual control tasks 21 to 25 in FIG. At this time, in the step that requires the operation of the bed mechanism 5 and the C-arm support mechanism 4 in the actual diagnosis, a virtual model that imitates the configuration (for example, shape) and operation of the actual operation unit 10 on the GUI of the terminal of the operation unit 10. An operation unit is provided. The virtual control task 23 of the bed mechanism 5 and the virtual control task 22 of the C-arm support mechanism virtual 4 calculate a virtual device attitude based on the operation information input to the virtual operation unit.

The virtual device attitude data is notified to the operator by the above-described GUI.

The operator performs an operation while referring to the notified information, and the X-ray image displayed on the X-ray image monitor 7 in each step of FIG. 6 is calculated using the data of the posture condition. All operations in this setting are performed via a GUI on the terminal of the operation unit 10.

Here, the operation shown as the third setting can be realized without driving components other than the control computer in the operation unit 10. Therefore, it goes without saying that such operation practice operation can be performed without a computer related to the medical diagnostic apparatus.

According to such an embodiment, based on a preset practice mode, operation acquisition along the shooting flow at the time of actual shooting can be performed without driving all the components. Even in this case, the X-ray diagnostic imaging apparatus behaves as if the actual rotational DSA imaging is performed, even though each component is not driven. Easy operation practice. Therefore, it is possible to practice without worrying about exhaustion of the entire apparatus and securing of space around the apparatus due to driving of the C arm support mechanism 4 and the bed mechanism 5. Therefore, it is possible to easily and quickly learn operation techniques and shooting procedures according to the type of shooting, and it is possible to reduce wear of the entire apparatus during non-shooting (reducing running costs).

Here, the setting as to whether the control task corresponding to each component is to be virtual control or actual control is not limited to these three types. Further, it may be possible to determine whether the control task is virtual control or actual control for each component.

Furthermore, it is needless to say that such an operation setting can be made not only in the rotation DSA in the circulatory system diagnosis but also in any X-ray image diagnosis apparatus using a computer as the control unit.

By the way, it is preferable that each data set 26-30 of the virtual motion data set unit 15 of FIG. If a certain component is upgraded, the virtual operation data set unit 15 needs to be updated.

In addition, there are various types of components, and it is necessary to replace data according to the configuration according to the configuration of the component. These data may be updated at the time of installation or shipment of a newly installed component, or a virtual operation data set regarding all components that may constitute the apparatus may be held in advance.

Therefore, an example of correspondence to component update or change will be described with reference to FIG. It is assumed that there are variations of the bed mechanism A, the bed mechanism B, and the bed mechanism C as the bed mechanism 5 constituting the X-ray image diagnostic apparatus. The user can select or change which bed mechanism is used as necessary, at the time of purchase or after purchase.

The system controller 9 holds a virtual motion data set A, a virtual motion data set B, and a virtual motion data set C in order to cope with such variations.

Here, a bed mechanism newly attached by update is assumed to be a bed mechanism A. First, the user inputs information about which bed mechanism is connected from the operation unit 10, and stores this information in the system setting data 14. The system control task 13 refers to this, and instructs the virtual control task 23 of the bed mechanism 5 to use the virtual movement data set A that is appropriate virtual movement data for the bed mechanism A. The virtual control task 23 of the bed mechanism 5 reads the virtual motion data set A, and the update is completed by changing the control motion.

Here, it goes without saying that such a system can also be applied to the update of components other than the bed mechanism.

  In addition, data for management and control may be damaged by any chance. For that case, it is preferable that the system control device 9 has a system that can be repaired by re-downloading using the terminal of the operation unit 10 through a network. Assuming that it is impossible, it is possible to provide means for ignoring data setting contents and for only the actual control task to operate on all components.

For this means, such a function may be set in the system control software 9a, or a means for forcibly switching with a switch or the like installed in each component may be provided from the viewpoint of a separate system. .

According to the above-described embodiment, the X-ray diagnostic imaging apparatus behaves as if X-ray images are collected in real time in practice for learning operations. Therefore, while using the X-ray image diagnostic apparatus main body, exposure and deterioration of consumables such as a tube can be reduced, and operation practice close to actual diagnosis can be performed.

The apparatus block diagram which shows the X-ray image diagnostic apparatus which concerns on this invention. The block diagram of the component of the system control apparatus 9 shown in FIG. 1, and the system control software integrated in it. The flowchart which shows the flow of the process by the system control software of FIG. The flowchart which shows the 1st operation example in the case of practicing operation of an X-ray-image diagnostic apparatus. The figure which shows the example of the setting conditions of an X-ray image diagnostic apparatus. The flowchart which shows an example of the operation procedure for imaging | photography of rotation DSA. The flowchart which shows an example of the operation procedure for performing the practice of apparatus operation at the time of imaging | photography of rotation DSA. FIG. 3 is an explanatory diagram illustrating a correspondence example when the system control software in FIG. 2 is updated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 X-ray tube 1a Subject 2 X-ray generation control apparatus 3 X-ray detector 4 C arm support mechanism 5 Bed mechanism 6 Image processing apparatus 7 X-ray image monitor 8 Image storage medium 9 System control apparatus 9a System control software 10 Operation Unit 11 Actual control task unit 12 Virtual control task unit 13 System control task 14 System setting data 15 Virtual motion data set unit 16 Actual control task 17 of X-ray generation control device 2 Actual control task 18 of C-arm support mechanism 4 Sleeper mechanism 5 real control task 19 real control task 20 of X-ray detector 3 real control task 21 of image processing device 6 virtual control task 22 of X-ray generation control device 2 virtual control task 23 of C arm support mechanism 4 of bed mechanism 5 Virtual control task 24 Virtual control task 25 of X-ray detector 3 Virtual control task 26 of image processing device 6 Temporary control of X-ray generation control device 2 Virtual motion data set 27 Virtual motion data set 28 of the C-arm support mechanism 4 Virtual motion data set 29 of the bed mechanism 5 Virtual motion data set 30 of the X-ray detector 3 Virtual motion data set of the image processing apparatus 6

Claims (11)

Mounting means for mounting the subject;
X-ray generation means for exposing the subject to X-rays;
X-ray detection means for detecting X-rays transmitted through the subject;
A support means for supporting the X-ray generation means and the X-ray detection means;
A plurality of first control means for controlling driving of each component of the placing means, the X-ray generation means, the X-ray detection means, and the support means;
A plurality of second control means for artificially generating data generated when each of the components is operating;
Selection means for selectively driving the plurality of first control means and second control means,
The second control means for artificially generating data generated by a component driven by the remaining first control means when a part of the plurality of first control means is selectively operated; An X-ray diagnostic imaging apparatus characterized by being driven. Image processing means as the component, image display means driven by the means, means for driving and controlling the image processing means as the first control means, and pseudo data of image processing as the second control means The X-ray diagnostic imaging apparatus according to claim 1, further comprising: First storage means for storing image data corresponding to each of a plurality of positional relationships of the placement means and the X-ray generation means and the X-ray detection means;
Means for reading out corresponding image data from the first storage means based on the positional relationship of the placing means, the X-ray generation means and the X-ray detection means, and outputting the image data to the image display means;
The X-ray diagnostic imaging apparatus according to claim 1, comprising: A setting condition storage means for preliminarily storing setting conditions for selection of the means when the plurality of first control means and second control means are selectively driven;
The selection means selectively drives the first control means and the second control means based on the setting condition.

The X-ray image diagnostic apparatus according to any one of claims 1 to 3, wherein The setting condition is a plurality of combinations of the first control unit to be driven and the second control unit to be driven, and the selection unit is configured to select the first control unit and the second control unit based on the combination. 5. The X-ray image diagnostic apparatus according to claim 4, wherein the control means is selectively driven. Second storage means for storing drive data for the plurality of first control means to drive and control the components;
Third storage means for storing pseudo data generated from the plurality of second control means;
The X-ray image diagnostic apparatus according to claim 1, comprising: 7. The X-ray image diagnostic apparatus according to claim 6, further comprising means for customizing the pseudo data stored in the third storage means. An operation unit for causing each component to perform a desired operation;
The X-ray image diagnostic apparatus according to claim 1, further comprising: a simulation operation unit that displays at least a part of the configuration and operation of the operation unit in a simulated manner. . The X-ray image diagnosis apparatus according to claim 8, wherein the operation unit is a graphic user interface. A placement means for placing the subject, an X-ray generation means for exposing the subject to X-rays, an X-ray detection means for detecting X-rays transmitted through the subject, A computer for controlling the X-ray diagnostic imaging apparatus, comprising: support means for supporting the X-ray generation means and the X-ray detection means;
A plurality of first control means for controlling driving of each component of the placing means, the X-ray generation means, the X-ray detection means, and the support means;
A plurality of second control means for generating, in a pseudo manner, data generated when each of the components is operating;
And selection means for selectively driving the plurality of first control means and second control means,
Function as
The second control means for artificially generating data generated by a component driven by the remaining first control means when a part of the plurality of first control means is selectively operated; A control program for an X-ray diagnostic imaging apparatus for driving. The computer,
Setting conditions for selection of driving of the plurality of first control means and second control means when the plurality of first control means and second control means are selectively driven are stored in advance. Further function as setting condition storage means,
The control program for an X-ray diagnostic imaging apparatus according to claim 10, wherein the first control unit and the second control unit are selectively driven based on the setting condition.

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