公开(公告)号：US20240423564A1

公开(公告)日：2024-12-26

申请号：US18751208

申请日：2024-06-22

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Akihiro ISHIDA ,  Takayuki YAMAZAKI

IPC: A61B6/42 ,  A61B6/00

Abstract: An X-ray image diagnostic system of an embodiment includes processing circuitry. The processing circuitry is configured to acquire an image obtained by imaging a plurality of detection elements that output signals in response to incident X-rays, and a plurality of scattered radiation removal plates arranged at least in a channel direction on the side of a first surface of the plurality of detection elements on which the X-rays are incident in a direction substantially normal to the first surface, and generate data regarding an irradiated area of each of the plurality of detection elements on the basis of the image.

公开(公告)号：US20230148976A1

公开(公告)日：2023-05-18

申请号：US18055544

申请日：2022-11-15

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Akihiro ISHIDA ,  Yasuo SAITO

IPC: A61B6/03 ,  G01T1/24

CPC classification number: A61B6/032 ,  G01T1/241 ,  A61B6/4021

Abstract: A direct-conversion X-ray detector according to an embodiment includes a plurality of anode electrodes, at least one cathode electrode, and electric-field forming circuitry. The anode electrodes are aligned in a cone angle direction of an incident X-ray. The cathode electrode is positioned on an incident side of an X-ray relative to the anode electrodes, and that opposes the anode electrodes. The electric-field forming circuitry configured to form an electric field in a direction based on a cone angle of the X-ray, between the anode electrodes and the cathode electrode.

公开(公告)号：US20230293121A1

公开(公告)日：2023-09-21

申请号：US18178634

申请日：2023-03-06

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Akihiro ISHIDA

IPC: A61B6/03 ,  A61B6/00 ,  G06T11/00

CPC classification number: A61B6/03 ,  A61B6/4241 ,  G06T11/005 ,  G06T2211/40

Abstract: A radiation diagnostic apparatus according to an embodiment includes plural radiation detection elements and a processing circuitry. The radiation detection elements are arranged in a two-dimensional direction. The processing circuitry determines, based on a first output relating to a first detection element included in the radiation elements and a second output relating to a second detection element, an ideal output relating to the first detection element when it is assumed that a surface at which a radiation first arrives on the first detection element is an incident position of the radiation.

公开(公告)号：US20220202383A1

公开(公告)日：2022-06-30

申请号：US17644673

申请日：2021-12-16

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Yuji OKAJIMA ,  Akihiro ISHIDA ,  Hiroaki MIYAZAKI

IPC: A61B6/00 ,  A61B6/03

Abstract: An X-ray computed tomography apparatus according to an embodiment includes an X-ray detector and a processing circuitry. The X-ray detector includes a plurality of detection elements arranged in a plurality of rows at least in a channel direction. The processing circuitry acquires an estimated count number of X-rays incident on the X-ray detector for each of the plurality of detection elements and determines a bit number for transmission for detection data indicating a count number of each of the plurality of detection elements based on the estimated count number.