X-ray diagnostic apparatus, and method of adjusting irradiation range of X-ray diagnostic apparatus
AssigneeCanon Medical Systems Corporation
InventorShingo Abe
Life of this patent
Estimating the term…
Abstract
An X-ray diagnostic apparatus according to this embodiment includes: a memory circuitry configured to store a program; and a processing circuitry configured to read the program from the memory circuitry, and execute the program, wherein the processing circuitry is configured to identify a predetermined three-dimensional region of a patient at a predetermined position based on multiple X-ray images taken in at least two directions, and adjust an X-ray irradiation range based on the identified three-dimensional region and on system position information that includes irradiation position information where the patient is irradiated.
Claims16
An X-ray diagnostic apparatus, comprising:
- a memory to store a program;
- and
- processing circuitry configured to read the program from the memory, and execute the program,
- wherein, by executing the program, the processing circuitry is configured to
- identify two-dimensional vascular regions in corresponding X-ray images taken in at least two directions,
- correct a size of each of the vascular regions on corresponding each of the X-ray images so as to have a corresponding size at a spatial position on a top table on which a patient is mounted,
- identify a three-dimensional region of the patient at the spatial position on the top table based on the corrected vascular regions, and
- adjust an X-ray irradiation range by controlling an X-ray diaphragm, or attenuate X-ray irradiation to a region other than the identified three-dimensional region by controlling a filter, based on the identified three-dimensional region and based on system position information that includes irradiation position information indicating where the patient is irradiated.
A method of adjusting an irradiation range of an X-ray diagnostic apparatus that reads a program from a memory and executes the program using processing circuitry, the method comprising:
- identifying two-dimensional vascular regions in corresponding X-ray images taken in at least two directions,
- correcting a size of each of the vascular regions on corresponding each of the X-ray images so as to have a corresponding size at a spatial position on a top table on which a patient is mounted,
- identifying a three-dimensional region of the patient at the spatial position on the top table based on the corrected vascular regions, and
- along with a change in system position information, adjusting an X-ray irradiation range by controlling an X-ray diaphragm, or attenuating an X-ray irradiation to a region other than the identified three-dimensional region by controlling a filter, based on the identified three-dimensional region and based on the system position information, which includes irradiation position information indicating where the patient is irradiated.
Dependencies are inferred from the claim text.