X-ray diagnostic apparatus that changes a display mode of a target based on a detection result and computer program product

Patent metadata

Field	Value
Publication number	US-12471859-B2
Application number	US-202217932348-A
Country	US
Kind code	B2
Filing date	Sep 15, 2022
Priority date	Sep 30, 2021
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

An X-ray diagnostic apparatus according to an embodiment includes an X-ray tube, an X-ray detector, image generating circuitry, and processing circuitry. The X-ray tube emits X-rays. The X-ray detector detects X-rays emitted from the X-ray tube and transmitted through a subject. The processing circuitry receives a designating operation related a display mode for a target that is at least one of a region of the subject and an object inserted in the subject. In response to the designating operation, the processing circuitry changes the display mode of the target in an X-ray projection image that is based on a detection result of the X-ray detector, the display mode being changed based on three-dimensional medical image data related to the subject.

First claim

What is claimed is:

1 . An X-ray diagnostic apparatus comprising:
an X-ray tube configured to generate X-rays; an X-ray detector configured to detect X-rays emitted from the X-ray tube and transmitted through a subject; and processing circuitry configured to:
receive a designating operation related to a display mode of a target that is at least one of a region of the subject and an object inserted in the subject; and
change the display mode of the target in an X-ray projection image that is based on a detection result of the X-ray detector, the display mode being changed based on three-dimensional medical image data related to the subject, in accordance with the designating operation,
wherein the processing circuitry is configured to change the display mode of the target by applying a compensation to the detection result of the X-ray detector using an amount of X-ray attenuation that is calculated based on the three-dimensional medical image data or an X-ray attenuation coefficient that is calculated based on the three-dimensional medical image data, the X-ray attenuation caused by the target in an image capturing geometry of the X-ray diagnostic apparatus, the X-ray attenuation coefficient being that related to the target in an image capturing geometry of the X-ray diagnostic apparatus.

2 . The X-ray diagnostic apparatus according to claim 1 , wherein the change in the display mode is a change in darkness at which the target is displayed, or a change for not displaying the target.

3 . The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to apply a compensation to the detection result of the X-ray detector by replacing an X-ray attenuation coefficient related to the target with that related to another substance.

4 . The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to perform a compensation to the detection result of the X-ray detector by replacing an X-ray attenuation coefficient related to the target with that related to another substance.

5 . The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to generate a mask image depicting an angiogram image by changing the display mode of targets other than blood vessels in an X-ray projection image that is based on a detection result of the X-ray detector detected during angiography to no-display.

6 . The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to change the display mode of the target in the X-ray projection image, based on the detection result of the X-ray detector and the three-dimensional medical image data with a matching respiratory or cardiac phase.

7 . The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to:
receive an input of an examination protocol as the designating operation, and change the display mode of the target to a display mode corresponding to the examination protocol.

8 . An X-ray diagnostic apparatus comprising:
an X-ray tube configured to generate X-rays; an X-ray detector configured to detect X-rays emitted from the X-ray tube and transmitted through a subject; and processing circuitry configured to:
receive a selecting operation for selecting a target for which a display mode is to be changed, from a region of the subject or an object inserted in the subject; and
change the display mode of the target in an X-ray projection image that is based on a detection result of the X-ray detector, the display mode being changed based on three-dimensional medical image data related to the subject,
wherein the processing circuitry is configured to change the display mode of the target by applying a compensation to the detection result of the X-ray detector using an amount of X-ray attenuation that is calculated based on the three-dimensional medical image data or an X-ray attenuation coefficient that is calculated based on the three-dimensional medical image data, the X-ray attenuation caused by the target in an image capturing geometry of the X-ray diagnostic apparatus, the X-ray attenuation coefficient being that related to the target in an image capturing geometry of the X-ray diagnostic apparatus.

9 . The X-ray diagnostic apparatus according to claim 8 , wherein the change in the display mode is a change in darkness at which the target is displayed, or a change for not displaying the target.

10 . The X-ray diagnostic apparatus according to claim 8 , wherein the processing circuitry is configured to generate a mask image depicting an angiogram image by changing the display mode of targets other than blood vessels in an X-ray projection image that is based on a detection result of the X-ray detector detected during angiography to no-display.

11 . The X-ray diagnostic apparatus according to claim 8 , wherein the processing circuitry is configured to change the display mode of the target in the X-ray projection image, based on the detection result of the X-ray detector and the three-dimensional medical image data with a matching respiratory or cardiac phase.

12 . The X-ray diagnostic apparatus according to claim 8 , wherein the processing circuitry is configured to:
receive an input of an examination protocol as the selecting operation, and change the display mode of the target corresponding to the examination protocol.

13 . A non-transitory computer program product storing therein a computer program executed by a computer, the computer program causing the computer to execute:
receiving a designating operation related to a display mode of a target that is at least one of a region of a subject and an object inserted in the subject in an X-ray projection image that is based on X-rays transmitted through the subject; changing the display mode of the target in the X-ray projection image based on three-dimensional medical image data related to the subject, in accordance with the designating operation; wherein in the change the display mode of the target, the display mode of the target is changed by applying a compensation to a detection result of an X-ray detector using an amount of X-ray attenuation that is calculated based on the three-dimensional medical image data or an X-ray attenuation coefficient that is calculated based on the three-dimensional medical image data, the X-ray attenuation caused by the target in an image capturing geometry of an X-ray diagnostic apparatus, the X-ray attenuation coefficient being that related to the target in the image capturing geometry of the X-ray diagnostic apparatus.

14 . The non-transitory computer program product according to claim 13 , wherein the computer program causes the computer to execute:
receiving a selecting operation for selecting a target for which a display mode is to be changed, from a region of the subject or an object inserted in the subject, and changing the display mode of the target in the X-ray projection image, based on three-dimensional medical image data related to the subject.

15 . The non-transitory computer program product according to claim 14 , wherein the change in the display mode is a change in darkness at which the target is displayed, or a change for not displaying the target.

16 . The non-transitory computer program product according to claim 13 , wherein the change in the display mode is a change in darkness at which the target is displayed, or a change for not displaying the target.

Assignees

• Canon Medical Systems Corp

Inventors

• Uehara Hisayuki
• Abe Shingo
• Kobayashi Masaki
• Nakamura Keisuke

Classifications

• G06T12/00

  Tomographic reconstruction from projections · CPC title

• A61B6/466

  adapted to display 3D data · CPC title

• A61B6/487

  involving fluoroscopy · CPC title

• A61B6/5223

  generating planar views from image data, e.g. extracting a coronal view from a 3D image · CPC title

• A61B6/5288

  involving retrospective matching to a physiological signal · CPC title