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.

公开(公告)号：US20240156428A1

公开(公告)日：2024-05-16

申请号：US18504521

申请日：2023-11-08

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Junji MASAHASHI ,  Hiroaki SATO ,  Yasushi SAKAI ,  Yasuhiro SUGAWARA ,  Makoto ISHII ,  Atsushi KOTANI ,  Norio SOUTSUKA ,  Shoji YASHIRO ,  Tatsuaki KODAKA

IPC: A61B6/00

CPC classification number: A61B6/545 ,  A61B6/463 ,  A61B6/469 ,  A61B6/488

Abstract: An X-ray diagnosis apparatus according to an embodiment includes: an X-ray generator configured to emit X-rays; an X-ray detector having a detection surface parallel to a first direction and being movable in the first direction and in a second direction orthogonal to the first direction and parallel to the detection surface; and processing circuitry configured to set a plurality of imaging ranges touching each other on the basis of reference information, to cause the X-rays to be emitted from the X-ray generator to each of the plurality of imaging ranges while sequentially moving the X-ray detector, and to generate X-ray images respectively corresponding to the plurality of imaging ranges, on the basis of a detection signal resulting from the X-ray detector detecting the X-rays.

公开(公告)号：US20230293133A1

公开(公告)日：2023-09-21

申请号：US18178633

申请日：2023-03-06

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Junji MASAHASHI ,  Katsunori KOJIMA ,  Norio SOUTSUKA ,  Tsutomu ICHIKAWA ,  Tatsuaki KODAKA ,  Shoji YASHIRO ,  Tamotsu INO

IPC: A61B6/00 ,  A61B6/08

CPC classification number: A61B6/545 ,  A61B6/08 ,  A61B6/587

Abstract: The X-ray diagnostic apparatus according to any of embodiments includes an X-ray tube, an X-ray detector and processing circuitry. The X-ray tube is configured to irradiate an imaging region of a subject with X-rays. The X-ray detector is configured to detect the X-rays. The processing circuitry is configured to acquire an incident angle of the X-rays corresponding to a clinical purpose of the imaging region, and acquire image data from an image sensor that images the imaging region. The processing circuitry is configured to rotate the X-ray tube in accordance with the acquired incident angle of the X-rays, and slide a position of a central path of the X-rays with respect to the imaging region based on the image data.