公开(公告)号：US20220160320A1

公开(公告)日：2022-05-26

申请号：US17456023

申请日：2021-11-22

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Norio SOUTSUKA ,  Takahiro INAGAKI ,  Motohiro SATO ,  Tomio MAEHAMA ,  Hiroshi NAKAYAMA ,  Takumi KUDO ,  Yusuke OKUMURA

IPC: A61B6/00 ,  A61B6/06 ,  A61B6/04

Abstract: According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube, an X-ray variable diaphragm, an X-ray detector, and processing circuitry. The X-ray tube irradiates X-rays. The X-ray variable diaphragm limits an irradiation region of the X-rays. The X-ray detector detects the X-rays that have passed through an object. The processing circuitry controls a movement of the X-ray tube, the X-ray detector, and an aperture of the X-ray variable diaphragm such that, when the irradiation region on the X-ray detector moves within an imaging range, a movement velocity of the irradiation region relative to the imaging range is maintained constant.