公开(公告)号：EP4173568A1

公开(公告)日：2023-05-03

申请号：EP22201479.7

申请日：2022-10-13

申请人： GE Precision Healthcare LLC

发明人： FAN, Jiahua ,  YAN, Ming ,  PACK, Jed Douglas ,  MADHAV, Priti ,  OGATA, Kentaro ,  ARAI, Ken

IPC分类号： A61B6/02 ,  A61B6/00 ,  G01N23/087 ,  G06T11/00 ,  A61B6/03

摘要： A method includes acquiring a first dataset of projection measurements at a first energy spectrum and a second dataset of projection measurements at a second energy spectrum different from the first energy spectrum by switching between acquiring the first dataset for a set number of consecutive views at different projection angles at the first energy spectrum and acquiring the second dataset for the set number of consecutive views at different projection angles at the second energy spectrum. The set number of consecutive views is greater than one. The method includes supplementing both the first dataset with estimated projection measurements at the first energy spectrum and the second dataset with estimated projection measurements at the second energy spectrum to provide missing projection measurements at different projection angles not acquired during the imaging scan for the first dataset and the second dataset.