JP6791697B2 - X-ray diagnostic equipment - Google Patents

Description

Embodiments of the present invention relate to an X-ray diagnostic apparatus.

An X-ray diagnostic device that displays a fluoroscopic X-ray image is widely used when performing angiography or interventional treatment. This type of X-ray diagnostic apparatus can store moving images during fluoroscopy during examination and surgery in the background. The saved image will be referenced later if necessary.

Japanese Unexamined Patent Publication No. 2000-262506

The X-ray diagnostic apparatus as described above usually has no particular problem, but according to the study of the present inventor, it is considered that there is room for improvement in the following points.

That is, there is room for improvement in that when referring to a necessary image from among the saved images, the unnecessary image may become an obstacle and it may be difficult to refer to the image. In addition, there is room for improvement in that it takes time and effort to delete an unnecessary image from the saved image.

An object of the present invention is to provide an X-ray diagnostic apparatus capable of easily referencing a necessary image and reducing the trouble of deleting an unnecessary image.

The X-ray diagnostic apparatus according to the embodiment includes an X-ray generating unit, an image generating means, a first storage means, a display means, a recording instruction means, a position recording means, a reproduction means, a designation means, and a writing means.

The X-ray generating unit generates X-rays to be irradiated to the subject.

The image generating means detects X-rays that have passed through the subject, and continuously generates X-ray images as moving images based on the detection results.

The first storage means temporarily stores the generated X-ray image.

The display means displays the generated X-ray image as a moving image.

The recording instruction means instructs the X-ray image being displayed to record the position information in the first storage means.

The position recording means records the position information of a certain section in the first storage means by using the instruction as a trigger.

After stopping the generation of the X-ray, the reproducing means reproduces the X-ray image in the first storage means as a moving image based on the recorded position information.

The designation means designates a permanent storage target X-ray image among the reproduced X-ray images.

The writing means writes the designated X-ray image into the second storage means.

FIG. 1 is a schematic view showing the configuration of the X-ray diagnostic apparatus according to the first embodiment. FIG. 2 is a flowchart for explaining the operation in the same embodiment. FIG. 3 is a schematic diagram for explaining the operation in the same embodiment. FIG. 4 is a schematic diagram for explaining the operation in the same embodiment. FIG. 5 is a schematic diagram for explaining the operation in the same embodiment. FIG. 6 is a schematic diagram for explaining the operation of the X-ray diagnostic apparatus according to the second embodiment. FIG. 7 is a schematic diagram for explaining the operation of the X-ray diagnostic apparatus according to the third embodiment.

Hereinafter, the X-ray diagnostic apparatus and the like according to the embodiment will be described with reference to the drawings.

<First Embodiment>
FIG. 1 is a schematic view showing the configuration of the X-ray diagnostic apparatus according to the first embodiment. .. As shown in the figure, the X-ray diagnostic apparatus of the present embodiment includes an X-ray tube 2, a detector 4, an optical lens 6, a TV camera 8, a TV camera interface (I / F) circuit 10, an image memory 12, and an input. It is composed of an interface (I / F) circuit 13, a storage circuit 14, a processing circuit 16, an image processing circuit 18, a video signal conversion circuit 20, and a display circuit 22.

The X-ray tube 2 generates X-rays that irradiate the subject P. The generated X-rays pass through the subject P and enter the detector 4 made of an image intensifier. The detector 4 has an input fluorescence plane, and incident X-rays are converted into electrons on the input fluorescence plane. This electron is amplified in the detector 4 and converted into light on its output surface. This light is focused by the optical lens 6 and then captured by the TV camera 8 to form an electrical two-dimensional image. The intensity of light at each point on this two-dimensional image is proportional to the intensity of transmitted X-rays.

The X-ray image (X-ray fluoroscopic image) captured by the TV camera 8 and obtained as a real-time two-dimensional image is A / D converted and then sent to the image processing circuit 18 via the TV camera interface circuit 10. The detector 4, the optical lens 6, the TV camera 8, the TV camera interface circuit 10, and the image processing circuit 18 detect X-rays that have passed through the subject, and based on the detection results, the X-ray images are continuously generated as moving images. It constitutes an image generation means for generating an image.

The image processing circuit 18 performs predetermined image processing on the sent two-dimensional image and sends it to the video signal conversion circuit 20. The predetermined image processing includes, for example, a process of correcting an X-ray image and a process of creating screen data including the corrected X-ray image. In the process of creating screen data, for example, screen data is created by allocating a display area of an X-ray image and a GUI display area corresponding to an instruction button or the like for the X-ray image.

The image memory 12 continuously inputs an X-ray image corrected by the image processing circuit 18, and temporarily stores a series of X-ray images from the latest to a predetermined period before. The image memory 12 is made of, for example, a volatile recording medium such as a semiconductor memory that requires a storage operation by a power source. The recording time of the X-ray image during the inspection is limited by the storage capacity of the image memory 12. Such an image memory 12 constitutes a first storage means for temporarily storing the generated X-ray image.

The input interface circuit 13 includes a foot switch for instructing the start and end of X-ray fluoroscopy, a switch button, a mouse, a keyboard, a touch pad for performing an input operation by touching an operation surface, and a display screen and a touch pad. It is realized by a touch panel display or the like. The input interface circuit 13 is connected to the processing circuit 16, converts the input operation received from the operator into an electric signal, and outputs the input operation to the processing circuit 16. In this specification, the input interface circuit 13 is not limited to the one provided with physical operating parts such as a mouse and a keyboard. For example, an example of the input interface circuit 13 includes an electric signal processing circuit that receives an electric signal corresponding to an input operation from an external input device provided separately from the device and outputs the electric signal to a control circuit. .. Such an input interface circuit 13 has, for example, a recording instruction function for instructing the recording of position information in the image memory 12 for the displayed X-ray image, and a permanent X-ray image reproduced. It has a specification function to specify the X-ray image to be saved.

The storage circuit 14 includes a memory such as an HDD (Hardware Disk Drive) for recording electrical information, and peripheral circuits such as a memory controller and a memory interface associated with the memory. The storage circuit 14 stores a program executed in the processing circuit 16, a processing result by the processing circuit 16, inspection-related information, and the like. The processing result by the processing circuit 16 is, for example, position information indicating an X-ray image in the image memory 12, an image file of the X-ray image that is permanently stored, and the like. The image file may be created so as to collectively include X-ray images of a plurality of sections in one X-ray fluoroscopy. Alternatively, the image file may be created for each X-ray image of each section in one X-ray fluoroscopy. Such a storage circuit 14 constitutes a second storage means for storing an X-ray image to be permanently stored.

The processing circuit 16 is a processor that realizes the position recording function 16a, the reproduction function 16b, and the writing function 16c corresponding to the program by calling and executing the program in the storage circuit 14. Although it has been described in FIG. 1 that the position recording function 16a, the reproduction function 16b, and the writing function 16c are realized by a single processing circuit 16, a processing circuit is configured by combining a plurality of independent processors. , Each processor may realize each function by executing a program. In addition, each function 16a to 16c generally specifies a plurality of sections of interest while referring to a real-time fluoroscopic image before saving, and specifies only an arbitrary part from the plurality of designated parts. After playing back, the operation of selecting and saving a desired part is realized. Hereinafter, a specific description will be given.

Here, the position recording function 16a is a function of recording the position information of a certain section in the image memory 12 by using the instruction input from the input interface circuit 13 as a trigger. The recording destination of the position information may be either the image memory 12 or the storage circuit 14. The position information is address information indicating an address in the image memory 12. However, the position information is not limited to the address information, and any information that can instruct the image data in the image memory 12 may be used. Therefore, for example, date and time information may be used. The position information may be recorded as data in an arbitrary section in association with the information corresponding to the instruction input from the input interface circuit 13. As the information corresponding to the input instruction, for example, date and time information, inspection-related information, and the like can be appropriately used.

The reproduction function 16b is a function of playing back an X-ray image in the image memory 12 as a moving image based on the position information recorded by the position recording function 16a after stopping the generation of X-rays. The reproduced X-ray image is displayed by the display circuit 22.

The writing function 16c is a function of writing the X-ray image designated by the input interface circuit 13 to the storage circuit 14 among the X-ray images reproduced by the reproduction function 16b. The X-ray image written in the storage circuit 14 is permanently stored. The writing function 16c may include a function of writing the X-ray image designated by the input interface circuit 13 to the storage circuit 14 as an individual image file. Alternatively, the writing function 16c may include a function of writing a plurality of X-ray images designated by the input interface circuit 13 to the storage circuit 14 as one image file.

The video signal conversion circuit 20 converts the screen data image-processed by the image processing circuit 18 into a video signal, and sends the video signal to the display circuit 22.

The display circuit 22 includes a display (TV monitor) that displays medical images and the like, and peripheral circuits such as connectors and cables that connect the display and the video signal conversion circuit 20, and displays a video signal received from the video signal conversion circuit 20. To do.

Next, the operation of the X-ray diagnostic apparatus configured as described above will be described with reference to the flowchart of FIG. 2 and the schematic views of FIGS. 3 to 5.

Now, in the X-ray diagnostic apparatus, as shown in FIGS. 2 and 3, the X-ray tube 2 starts irradiating the subject P with X-rays by operating the foot switch 13a (step ST1).

The X-rays transmitted through the subject P are detected by the detector 4 and converted into light. After being condensed by the optical lens 6, this light is captured by the TV camera 8 and converted into an X-ray image of a real-time moving image. After A / D conversion, the X-ray image is sent to the image processing circuit 18 via the TV camera interface circuit 10 and subjected to predetermined processing. The screen data including the real-time X-ray image is transmitted from the image processing circuit 18 and displayed by the display circuit 22 via the video signal conversion circuit 20 (step ST2).

On the other hand, the X-ray image processed by the image processing circuit 18 is continuously input to the image memory 12. In the image memory 12, images are written in order from the first address, and when the images are written up to the last address and the free space is exhausted, the image returns to the first address and the next image is written. That is, the image memory 12 is used as a so-called ring buffer. By operating the image memory 12 as such a ring buffer, a series of X-ray images from the latest to a predetermined period before are temporarily stored (step ST3). For example, a series of X-ray images includes all X-ray images obtained by one or more fluoroscopy.

During execution of the real-time display of the X-ray image and the temporary storage, the processing circuit 16 shifts to step ST6 unless instructed by the input interface circuit 13 (step ST4: No). Further, if an instruction is input from the input interface circuit 13 by the position recording function 16a (step ST4: Yes), the processing circuit 16 uses the input instruction as a trigger to generate position information of a certain section in the image memory 12. Record (step ST5).

For example, as shown in FIG. 3, the operator operates the button 13b while positioning the stent while looking at the real-time X-ray image grt to obtain an image of the displayed X-ray image. It suffices to instruct the recording of the position information in the memory 12. In this way, for example, the position information of a certain section corresponding to the X-ray image g1 is recorded. The instruction for recording the position information is not limited to the operation of the button 13b, and may be input from any of the voice input to the voice input function 13c by the operator and the injector interlocking function 13d linked to the injection of the contrast medium. Further, the input interface circuit 13 can specify a section of several seconds (eg, 3 seconds) from the trigger timing as position information. Alternatively, the input interface circuit 13 may receive two instructions to specify a start position and an end position.

As an actual screen during X-ray fluoroscopy, for example, as shown on the left side of FIG. 4, a real-time X-ray image grt is displayed, and a temporary storage is shown in the upper left corner of the X-ray image grt. The recording marker r1 is displayed. Further, for example, below the X-ray image grt, a progress marker t that moves to the right with the passage of the X-ray irradiation time and markers mk1 and mk2 indicating that the position information has been recorded are displayed. Further, for example, the thumbnail image gs2 may be displayed in the vicinity of the marker mk2 as illustrated in only one place.

Such processes in steps ST2 to ST5 are repeatedly executed until the X-ray tube 2 finishes irradiating X-rays by operating the foot switch 13a (steps ST6: No). By repeating this, for example, as shown in FIG. 3, the position information of each fixed section of the X-ray images g2 and g3 is recorded.

When the X-ray irradiation is completed (step ST6: Yes), the processing circuit 16 reproduces the X-ray image in the image memory 12 as a moving image based on the position information recorded in step ST5 (step ST7). The reproduced X-ray image is displayed by the display circuit 22. When the position information of a plurality of sections is recorded, the X-ray images of each section are reproduced as moving images in order. Alternatively, only the X-ray image of the last section may be reproduced. Alternatively, normal LIH (still image) display is also possible. Alternatively, it may be displayed as a catalog in which thumbnail images of X-ray images of each section are extracted. The selection of the X-ray image to be reproduced is executed by, for example, as shown in FIG. 3, selecting the X-ray image by operating the front image selection button 13e and the rear image selection button 13f, and operating the playback button 13g. It is possible. Further, as shown in FIG. 3, the X-ray image to be saved can be written to the storage circuit 14 by operating the save button 13h.

During or after the reproduction of the X-ray image, the processing circuit 16 proceeds to step ST10 unless the input interface circuit 13 specifies a storage target (step ST8: No). Further, the processing circuit 16 writes the designated X-ray image to the storage circuit 14 (step ST9) if the input interface circuit 13 specifies the storage target by the writing function 16c (step ST8: Yes). As an actual screen after X-ray fluoroscopy, for example, as shown on the right side of FIG. 4, when the reproduced X-ray image g2 is written to the storage circuit 14 by operating the save button 13h, the written X-ray image g2 is displayed. The thumbnail image gs2 to be represented may be displayed on a part of the screen.

Such processes in steps ST7 to ST9 are repeatedly executed until all the X-ray images to be saved in the current X-ray fluoroscopy are saved (steps ST10: No). As shown in FIG. 5, the processing circuit 16 stores the X-ray images g2 and g3 designated by the input interface circuit 13 in the storage circuit 14 as individual image files F2 and F3 by the writing function 16c. May be good. Alternatively, the processing circuit 16 may store a plurality of designated X-ray images g2 and g3 as one image file Fs in the storage circuit 14 by the writing function 16c.

When the saving of all the X-ray images to be saved is completed (step ST10: Yes), the process ends. When the next fluoroscopy is started after the processing is completed, a series of temporarily stored X-ray images and the designated position information may be stored in a predetermined area of the storage circuit 14. The X-ray image and position information stored in this predetermined area are automatically discarded at an appropriate timing.

As described above, according to the present embodiment, the X-ray image being displayed is instructed to record the position information in the first storage means (image memory 12), and the instruction is used as a trigger in the first storage means. Record the position information of a certain section of. After stopping the generation of X-rays, the X-ray image in the first storage means is reproduced as a moving image based on the recorded position information. Of the reproduced X-ray images, the X-ray image to be permanently saved is specified. The designated X-ray image is written in the second storage means (storage circuit 14).

Therefore, the necessary image can be easily referred to and the unnecessary image can be easily referred to by the configuration in which the position information of the necessary image is recorded and the X-ray image to be permanently saved is written after the reproduction based on the position information. The trouble of deleting can be reduced. In the past, when referring to a necessary image from among the saved images, the unnecessary image may be an obstacle and it may be difficult to refer to the image. Further, conventionally, it takes time and effort to delete an unnecessary image from a saved image.

Further, since it is only necessary to instruct the recording of the position information during the display of the X-ray image, the operator can concentrate on the operation and the procedure of fluoroscopy, and thus the operability can be improved. In addition, the exposure dose can be reduced by mainly using fluoroscopic collection. Similarly, after fluoroscopy, X-ray photography is not performed only for recording, so that the exposure dose can be reduced.

In addition, candidate X-ray images can be confirmed before permanent storage. Moreover, only the short X-ray image of the section confirmed from the candidates can be permanently saved. Further, when it is determined that it is unnecessary, it is automatically deleted from the image memory 12, so that the storage area is not overwhelmed and there is no need to delete it as an unnecessary file.

In addition to this, it can be performed without compromising the existing sequence of temporarily storing the X-ray image during fluoroscopy. The existing sequence can use a function of pre-booking a recording cycle when it is desired to reduce the amount of X-ray image data to be temporarily stored. It is preferable not to use this kind of pre-booking function because it is troublesome and the X-ray image of the pre-booked cycle may not include an appropriate X-ray image. On the other hand, this embodiment can be implemented without using this advance reservation function.

Further, according to the present embodiment, when the designated X-ray image is written to the storage circuit 14 as an individual image file, each X-ray image in a different section can be handled separately. For example, each X-ray image obtained by different generations of X-ray fluoroscopy can be treated individually.

<Second embodiment>
Next, the X-ray diagnostic apparatus according to the second embodiment will be described.

The second embodiment is a modification of the first embodiment, in which an X-ray image of a section registered one generation before (or several generations) can be recalled after the completion of the second X-ray fluoroscopy, and The configuration is such that the called X-ray image can be stored in the storage circuit 14.

Specifically, the reproduction function 16b has a function of reproducing each X-ray image obtained by a plurality of X-ray fluoroscopy during each X-ray fluoroscopy, in addition to the above-mentioned function.

Along with this, the input interface circuit 13 has a function of designating each X-ray image according to the operation of the operator, in addition to the above-mentioned functions.

Other configurations are the same as in the first embodiment.

Next, the operation of the X-ray diagnostic apparatus configured as described above will be described with reference to FIG.

Now, it is assumed that steps ST1 to ST10 are executed in the first fluoroscopy as described above. Further, it is assumed that one X-ray image g1-1 has position information recorded as shown by the marker mk1-1, but is not stored in the storage circuit 14.

Subsequently, it is assumed that steps ST1 to ST10 are executed in the second fluoroscopy. Further, it is assumed that the two X-ray images g2-1 and g2-2 have the position information recorded as shown by the markers mk2-1 and mk2-2, but neither of them is stored in the storage circuit 14.

Here, the operator is more suitable for the X-ray image g1-1 obtained by the first X-ray fluoroscopy than the X-ray images g2-1 and g2-2 obtained by the second X-ray fluoroscopy. Suppose that it is judged.

In this case, the input interface circuit 13 selects the marker mk1-1 of the X-ray image g1-1 in the first X-ray fluoroscopy by the operation of the operator, and then presses the save button 13h to save the X-ray image g1. It is assumed that -1 is specified.

At this time, the processing circuit 16 writes the designated X-ray image g1-1 to the storage circuit 14 by the writing function 16c. As a result, the X-ray image g1-1 one generation ago can be permanently stored in the storage circuit 14.

As described above, according to the present embodiment, each X-ray image obtained by a plurality of X-ray fluoroscopys is reproduced during each X-ray fluoroscopy, and each X-ray image is adapted to the operation of the operator. To specify.

Therefore, in addition to the effects of the first embodiment, each X-ray image obtained by a plurality of X-ray fluoroscopy can be retroactively reproduced, and among the retroactively reproduced X-ray images, necessary X-rays can be reproduced. Images can be saved permanently.

That is, after the completion of the second fluoroscopy, the section registered one generation before (or several generations) can be called, and if necessary, the X-ray image of the section registered by the called generation is stored in the storage circuit 14. can do.

Further, even if the X-ray image is forgotten to be saved and the next X-ray fluoroscopy is started, the X-ray image of the required section can be permanently saved retroactively.

<Third embodiment>
Next, the X-ray diagnostic apparatus according to the third embodiment will be described.
The third embodiment is a modification of the first or second embodiment, and is configured to record a position retroactive from the time when the recording of the position information is instructed.

Specifically, the position recording function 16a starts from the position information corresponding to the time point past the time when the instruction is received by the input interface circuit 13, and the position information corresponding to the time point in the future than the time when the instruction is received. It has a function of recording the position information of a certain section so that the end point is.

Other configurations are the same as in the first or second embodiment.

Next, the operation of the X-ray diagnostic apparatus configured as described above will be described with reference to FIG. 7.

Now, it is assumed that the X-ray irradiation is started by the operation of the foot switch 13a and the real-time display of the X-ray image and the temporary storage are being executed as described above.

Here, it is assumed that an instruction to record the position information is input from the input interface circuit 13 at the time t12 after the time t11.

The processing circuit 16 uses the position recording function 16a to start at a position information corresponding to a time point (t11) past the time point (t12) when this instruction is received, and a time point (t13) later than the time point when the instruction is received. The position information of a certain section is recorded so that the position information corresponding to is the end point. For example, position information indicating a total of 3 seconds of 2 seconds after going back 1 second is recorded.

Hereinafter, the process is executed in the same manner as described above. The X-ray image based on the recorded position information is reproduced after fluoroscopy, and after it is confirmed that it is a permanent storage target, it is stored in the storage circuit 14 by the operation of the operator.

As described above, according to the present embodiment, the start point is the position information corresponding to the time point past the time when the instruction is received, and the end point is the position information corresponding to the time point in the future than the time point when the instruction is received. Record the position information of a certain section in.

Therefore, in addition to the effects of the first or second embodiment, it is possible to record appropriate position information even when the timing of inputting an instruction is slightly late, so that an appropriate X-ray image can be permanently stored. it can.

According to at least one embodiment described above, the X-ray image being displayed is instructed to record the position information in the first storage means (image memory 12), and the first storage is triggered by this instruction. Record the position information of a certain section in the means. After stopping the generation of X-rays, the X-ray image in the first storage means is reproduced as a moving image based on the recorded position information. Of the reproduced X-ray images, the X-ray image to be permanently saved is specified. The designated X-ray image is written in the second storage means (storage circuit 14).

Therefore, the necessary image can be easily referred to and the unnecessary image can be easily referred to by the configuration in which the position information of the necessary image is recorded and the X-ray image to be permanently saved is written after the reproduction based on the position information. The trouble of deleting can be reduced.

The word "processor" used in the above description means, for example, a CPU (central processing unit), a GPU (Graphics Processing Unit), or an application specific integrated circuit (ASIC), or a programmable logic device (for example, an application specific integrated circuit (ASIC)). , Simple Programmable Logic Device (SPLD), Complex Programmable Logic Device (CPLD), and Field Programmable Gate Array (FPGA). The processor realizes the function by reading and executing the program stored in the storage circuit. Instead of storing the program in the storage circuit, the program may be directly embedded in the circuit of the processor. In this case, the processor realizes the function by reading and executing the program embedded in the circuit. It should be noted that each processor of the present embodiment is not limited to the case where each processor is configured as a single circuit, and a plurality of independent circuits may be combined to form one processor to realize its function. Good. Further, the plurality of components in FIG. 1 may be integrated into one processor to realize the function.

The X-ray tube 2 in the first embodiment is an example of an X-ray generating unit within the scope of claims. The detector 4, the optical lens 6, the TV camera 8, the TV camera interface circuit 10, and the image processing circuit 18 in the first embodiment are examples of image generation means within the scope of claims. The image memory 12 in the first embodiment is an example of the first storage means within the scope of claims. The input interface circuit 13 in the first embodiment is an example of recording instruction means and designation means within the scope of claims. The storage circuit 14 in the first embodiment is an example of a second storage means within the scope of claims. The display circuit 22 in the first embodiment is an example of display means within the scope of claims. The processing circuit 16 and the position recording function 16a in the first embodiment are examples of position recording means within the scope of claims. The processing circuit 16, the reproduction function 16b, and the display circuit 22 in the first embodiment are examples of the reproduction means within the scope of the claims. The processing circuit 16 and the writing function 16c in the first embodiment are examples of writing means within the scope of claims.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

2 ... X-ray tube, 4 ... Detector, 6 ... Optical lens, 8 ... TV camera, 10 ... TV camera interface (I / F) circuit, 12 ... Image memory, 13 ... Input interface (I / F) circuit, 14 ... storage circuit, 16 ... processing circuit, 18 ... image processing circuit, 20 ... video signal conversion circuit, 22 ... display circuit.

Claims (4)

An X-ray generator that generates X-rays that irradiate the subject,
An image generating means that detects X-rays that have passed through the subject and continuously generates X-ray images as moving images based on the detection results.
The first storage means for temporarily storing the generated X-ray image and
A display means for displaying the generated X-ray image as a moving image, and
A recording instruction means for receiving an input operation from an operator for instructing the recording of position information in the first storage means for the displayed X-ray image.
A position recording means for recording position information of a certain section in the first storage means according to the timing of the input operation, and a position recording means.
After stopping the generation of the X-ray, the reproduction means for reproducing the X-ray image in the first storage means as a moving image based on the recorded position information, and the reproduction means.
Of the reproduced X-ray images, a designation means for designating a permanent storage target X-ray image, and
An X-ray diagnostic apparatus including a writing means for writing the designated X-ray image into a second storage means. The X-ray diagnostic apparatus according to claim 1, wherein the writing means writes the designated X-ray image as an individual image file in the second storage means. The reproduction means reproduces each X-ray image obtained by a plurality of X-ray fluoroscopy during each X-ray fluoroscopy.
The X-ray diagnostic apparatus according to claim 1 or 2, wherein the designation means designates each of the X-ray images according to the operation of the operator. The position recording means records the position information of the fixed section so that the position information corresponding to the time point past the timing is the start point and the position information corresponding to the time point later than the timing is the end point. The X-ray diagnostic apparatus according to any one of claims 1 to 3.