公开(公告)号：US20190192091A1

公开(公告)日：2019-06-27

申请号：US16233905

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changlae LEE ,  Wooyoung Jang ,  Jinwook Jung ,  Yuna Choi

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

CPC classification number: A61B6/032 ,  A61B6/463 ,  A61B6/469 ,  A61B6/481 ,  A61B6/486 ,  A61B6/488 ,  A61B6/504 ,  A61B6/507 ,  A61B6/541 ,  G06T11/008

Abstract: The method of performing CT imaging by injecting the contrast medium into the object includes: setting a region of interest (ROI) in a scout image of the object; acquiring X-ray projection images by detecting X-rays that have passed through the ROI; determining a difference between pixel values of at least one first X-ray projection image acquired before an injection of the contrast medium into the ROI and pixel values of at least one second X-ray projection image acquired after the injection of the contrast medium into the ROI; and determining whether to initiate a diagnostic CT scan by comparing the difference with a threshold.

公开(公告)号：US20190261940A1

公开(公告)日：2019-08-29

申请号：US16285502

申请日：2019-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kihong SON ,  Kyoung-Yong Lee ,  Duhgoon Lee ,  Wooyoung Jang ,  Jaemoon Jo

IPC: A61B6/00 ,  G06T11/00 ,  G06T7/246 ,  A61B6/03

Abstract: A method and apparatus correct a computed tomography (CT) image with motion artifacts. The method of correcting a CT image may include: obtaining a reconstruction image of an object by reconstructing an X-ray projection image; measuring a parameter value related to motion artifacts that occur due to movement of the object in at least one of the X-ray projection image or the reconstruction image; calculating a correction possibility for the reconstruction image based on the measured parameter value; and determining whether to perform correction on the reconstruction image based on the calculated correction possibility.