公开(公告)号：US11596374B2

公开(公告)日：2023-03-07

申请号：US17232281

申请日：2021-04-16

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Shumpei Ohashi ,  Junichi Yamagishi ,  Naotaka Sato ,  Jun Sakakibara ,  Yusuke Kanno ,  Toshiya Waku

IPC: A61B6/00

Abstract: An X-ray diagnostic apparatus of an embodiment includes processing circuitry. The processing circuitry determines a concentration of a contrast agent in contrast-enhanced image collection based on first reference information in which a recommended contrast in a contrast-enhanced image is associated with each region of interest to be subject to collection of the contrast-enhanced image, and on second reference information that indicates a relation among a generation condition of an X-ray, a concentration of a contrast agent, and a contrast. The processing circuitry calculates setting information of an injector to inject a contrast agent to the subject based on the determined concentration of a contrast agent.

公开(公告)号：US11334998B2

公开(公告)日：2022-05-17

申请号：US16853855

申请日：2020-04-21

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hirona Oikawa ,  Shingo Abe ,  Kunio Shiraishi ,  Toshiya Waku ,  Shumpei Ohashi ,  Akihito Takahashi ,  Saki Hashimoto ,  Jumpei Ogasawara

IPC: G06K9/00 ,  G06T7/00 ,  G06T7/215 ,  G06T7/73 ,  G16H30/20

Abstract: According to one embodiment, a medical image processing apparatus includes processing circuitry. The processing circuitry specifies, before position alignment between a first X-ray image and a second X-ray image which is acquired with a device inserted, a device area candidate in the second X-ray image as a candidate of an area where the device appears. The processing circuitry performs the position alignment using first processing of removing the specified device area candidate or second processing of reducing a contribution of the specified device area candidate.