公开(公告)号：US11244480B2

公开(公告)日：2022-02-08

申请号：US16451207

申请日：2019-06-25

Applicant: Canon Medical Systems Corporation

Inventor： Manabu Teshigawara ,  Takahiro Yoda ,  Ryo Okuda ,  Hiroki Tawara

IPC: G06T11/00 ,  G16H30/40 ,  A61B5/00 ,  A61B6/00 ,  G16H50/20

Abstract: According to one embodiment, a medical information processing apparatus includes processing circuitry. The processing circuitry is configured to receive data acquired by scan for an object, and output a reconstructed image data based on the data and a trained model that accepts the data as input data and outputs the reconstructed image data corresponding to the data. The trained model is trained by learning using raw data generated based on a numerical phantom and the numerical phantom.

公开(公告)号：US11759162B2

公开(公告)日：2023-09-19

申请号：US17345716

申请日：2021-06-11

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Wenyuan Qi ,  Yujie Lu ,  Ryo Okuda ,  Evren Asma ,  Manabu Teshigawara ,  Jeffrey Kolthammer

IPC: A61B6/00 ,  A61B6/03

CPC classification number: A61B6/5282 ,  A61B6/032 ,  A61B6/037 ,  A61B6/5205

Abstract: The present disclosure is related to removing scatter from a SPECT scan by utilizing a radiative transfer equation (RTE) method. An attenuation map and emission map are acquired for generating scatter sources maps and scatter on detectors using the RTE method. The estimated scatter on detectors can be removed to produce an image of a SPECT scan with less scatter. Both first-order and multiple-order scatter can be estimated and removed. Additionally, scatter caused by multiple tracers can be determined and removed.

公开(公告)号：US11684321B2

公开(公告)日：2023-06-27

申请号：US17412734

申请日：2021-08-26

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Go Kawata ,  Ryo Okuda

IPC: A61B6/03 ,  G01T1/16 ,  G01T1/20 ,  G01T1/22 ,  G01T1/29 ,  A61B6/00 ,  G01N23/20066 ,  G01T1/164

CPC classification number: A61B6/037 ,  A61B6/4241 ,  A61B6/4258 ,  A61B6/4266 ,  A61B6/4275 ,  A61B6/482 ,  A61B6/483 ,  A61B6/5205 ,  A61B6/5282 ,  G01N23/20066 ,  G01T1/1642 ,  G01T1/2006 ,  G01T1/2018 ,  G01T1/20181 ,  G01T1/20182 ,  G01T1/22 ,  G01T1/2907 ,  G01T1/2914 ,  G01T1/2985 ,  G01N2223/108

Abstract: A radiation diagnostic device according to an aspect of the present invention includes a first detector, a second detector, and processing circuitry. The first detector detects Cherenkov light that is generated when radiation passes. The second detector is disposed to be opposed to the first detector on a side distant from a generation source of the radiation, and detects energy information of the radiation. The processing circuitry specifies Compton scattering events detected by the second detector, and determines an event corresponding to an incident channel among the specified Compton scattering events based on a detection result obtained by the first detector.