公开(公告)号：US20220036607A1

公开(公告)日：2022-02-03

申请号：US16941015

申请日：2020-07-28

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Karthikayan BALAKRISHNAN ,  Kent C. Burr

IPC: G06T11/00 ,  G06T7/10 ,  G06T7/90 ,  G06T15/08

Abstract: A method of imaging includes obtaining projection data for an object representing an intensity of radiation detected along a plurality of rays through the object, obtaining an outline of the object via a secondary imaging system, the secondary imaging system using non-ionizing radiation, determining, based on the outline, a model and model parameters for the object, calculating, based on the model and the model parameters, a volumetric attenuation map for the object, and reconstructing, based on the projection data and the volumetric attenuation map, an attenuation-corrected volumetric image.

公开(公告)号：US20230342914A1

公开(公告)日：2023-10-26

申请号：US17726070

申请日：2022-04-21

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Karthikayan BALAKRISHNAN ,  Kent C. BURR ,  Manabu TESHIGAWARA ,  Jeffrey KOLTHAMMER ,  Wenyuan QI

IPC: G06T7/00 ,  G06T7/20 ,  G06T11/00

CPC classification number: G06T7/0012 ,  G06T7/20 ,  G06T11/008 ,  G06T2207/10104 ,  G06T2207/20084 ,  G06T2207/10048

Abstract: A method of generating an image, including: receiving, via a monitoring device, time-dependent data corresponding to a patient parameter; obtaining emission data representing radiation detected during a medical imaging scan; identifying time frames during the medical imaging scan to exclude from the obtained emission data, the identified time frames corresponding to a stressed emotional state for the patient based on the patient parameter; modifying the obtained emission data to exclude the emission data corresponding to the time frames corresponding to the stressed emotional state; and generating an emotional-state-corrected image based on the modified emission data excluding the emission data corresponding to the time frames corresponding to the stressed emotional state.

公开(公告)号：US20220076439A1

公开(公告)日：2022-03-10

申请号：US17015670

申请日：2020-09-09

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Karthikayan BALAKRISHNAN ,  Kent C. BURR

IPC: G06T7/70 ,  A61B6/04 ,  G06T7/00

Abstract: Optical sensors and optical markers are placed on components in a medical system to provide calibration and alignment, such as on a patient transportation mechanism and spatially separated medical diagnostic devices. Image processing circuitry uses the data captured by these optical devices to coordinate their movements and/or position. This enables scans that were captured in multiple medical diagnostic devices to be accurately aligned.