X-ray diagnosis apparatus comprising a blood vessel running information acquiring function, a position specification function, and a diaphragm control function

Patent metadata

Field	Value
Publication number	US-11191504-B2
Application number	US-201916525762-A
Country	US
Kind code	B2
Filing date	Jul 30, 2019
Priority date	Jul 31, 2018
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

According to one embodiment, an X-ray diagnosis apparatus includes an X-ray generator, an X-ray diaphragm, an X-ray detector, an image capturing unit, a blood vessel running information acquiring unit, a device position specifying unit, and a diaphragm controller. The X-ray generator emits X-rays. The X-ray diaphragm restricts a region to be irradiated with X-rays emitted from the X-ray generator. The X-ray detector detects X-rays emitted from the X-ray generator. The image capturing unit acquires an X-ray image based on a detection result obtained by the X-ray detector. The blood vessel running information acquiring unit acquires blood vessel running information. The device position specifying unit specifies the position of a device in the X-ray image. The diaphragm controller controls the X-ray diaphragm based on the blood vessel running information and the position of the device.

First claim

What is claimed is:

1. An X-ray diagnosis apparatus, comprising:
an X-ray generator configured to emit X-rays;
an X-ray diaphragm configured to restrict a region to be irradiated with the X-rays emitted from the X-ray generator;
an X-ray detector configured to detect the X-rays emitted from the X-ray generator; and
a processing circuitry configured to:
acquire an X-ray image based on a detection result obtained by the X-ray detector,
acquire blood vessel running information, which comprises information about a blood vessel running in a subject, from volume data acquired by another apparatus,
specify a position of a device in the X-ray image, and
control the X-ray diaphragm based on the blood vessel running information and the position of the device.

2. The X-ray diagnosis apparatus of claim 1 , wherein the processing circuitry is further configured to:
control the X-ray diaphragm such that the region to be irradiated with the X-rays moves according to a movement of the device.

3. The X-ray diagnosis apparatus of claim 2 , wherein the processing circuitry is further configured to:
control the X-ray diaphragm such that a center of the region to be irradiated with the X-rays is aligned with a position of a tip of the device.

4. The X-ray diagnosis apparatus of claim 2 , further comprising:
a storage circuit configured to store the blood vessel running information in an association with information on the region to be irradiated with the X-ray,
wherein the processing circuitry is further configured to:
control the X-ray diaphragm with a reference to the association.

5. The X-ray diagnosis apparatus of claim 1 , wherein the processing circuitry is further configured to:
specify the position of the device based on a position of a tip of the device, a plurality of frames of the X-ray image, and a frame rate.

6. The X-ray diagnosis apparatus of claim 1 , further comprising:
a user interface configured to receive an instruction to change a size of a field of view,
wherein the processing circuitry is further configured to:
acquire a region of interest in the X-ray image based on the blood vessel running information and the position of the device,
acquire a part of a region of the X-ray image as a new field of view, in response to the instruction, based on the size of the field of view according to the instruction and the region of interest, and
control the X-ray diaphragm to set the new field of view as the region to be irradiated with the X-ray.

7. The X-ray diagnosis apparatus of claim 6 , wherein the processing circuitry is further configured to:
acquire a new field of view such that the new field of view includes the region of interest.

8. An X-ray diagnosis apparatus, comprising:
an X-ray generator configured to emit X-rays;
a filter located between the X-ray generator and a subject, and having an opening through which the X-rays emitted from the X-ray generator pass;
an X-ray detector configured to detect the X-rays emitted from the X-ray generator; and
a processing circuitry configured to:
acquire an X-ray image based on a detection result obtained by the X-ray detector,
acquire blood vessel running information, which comprises information about a blood vessel running in the subject, from volume data acquired by another apparatus,
specify a position of a device in the X-ray image, and
control the filter based on the blood vessel running information and the position of the device.

9. The X-ray diagnosis apparatus of claim 8 , wherein the processing circuitry is further configured to:
control the filter such that the region to be irradiated with the X-rays moves according to a movement of the device.

10. The X-ray diagnosis apparatus of claim 9 , wherein the processing circuitry is further configured to:
control the filter such that a center of the region to be irradiated with the X-rays is aligned with a position of a tip of the device.

11. The X-ray diagnosis apparatus of claim 9 , further comprising:
a storage circuit configured to store the blood vessel running information in an association with information on the region irradiated with the X-rays,
wherein the processing circuitry is further configured to:
control the filter with a reference to the association.

12. The X-ray diagnosis apparatus of claim 8 , wherein the processing circuitry is further configured to:
specify the position of the device based on a position of a tip of the device, a plurality of frames of the X-ray image, and a frame rate.

13. An X-ray diagnosis apparatus, comprising:
an X-ray generator configured to emit X-rays;
an X-ray detector configured to detect the X-rays emitted from the X-ray generator;
a user interface configured to receive an instruction to change a size of a field of view; and
a processing circuitry configured to:
acquire an X-ray image based on a detection result obtained by the X-ray detector,
acquire blood vessel running information, which comprises information about a blood vessel miming in a subject,
specify a position of a device in the X-ray image,
acquire a region of interest in the X-ray image based on the blood vessel running information and the position of the device,
acquire a part of a region of the X-ray image as a new field of view, in response to the instruction, based on the size of the field of view according to the instruction and the region of interest, and
control an X-ray diaphragm to set the new field of view as the region to be irradiated with the X-rays.

14. The X-ray diagnosis apparatus of claim 13 , wherein the processing circuitry is further configured to:
acquire an X-ray irradiation condition using the region of interest.

15. The X-ray diagnosis apparatus of claim 14 , wherein the processing circuitry is further configured to:
acquire the X-ray irradiation condition based on a pixel value in the region of interest.

16. The X-ray diagnosis apparatus of claim 13 , wherein the processing circuitry is further configured to:
acquire an image processing parameter based on a pixel value in the region of interest, and
perform image processing on the X-ray image using the image processing parameter.

17. The X-ray diagnosis apparatus of claim 13 ,
wherein the X-ray diaphragm is configured to restrict a region to be irradiated with the X-rays emitted from the X-ray generator, and
wherein the processing circuitry is further configured to:
control the X-ray diaphragm based on the region of interest.

Assignees

• Canon Medical Systems Corp

Inventors

• Imagawa Kazuo
• Abe Shingo
• Takahashi Akihito

Classifications

• A61B6/469

  for selecting a region of interest [ROI] · CPC title

• A61B6/487

  involving fluoroscopy · CPC title

• A61B6/06

  Diaphragms · CPC title

• A61B6/5211

  involving processing of medical diagnostic data · CPC title

• A61B6/465

  adapted to display user selection data, e.g. graphical user interface, icons or menus · CPC title