公开(公告)号：US10507005B2

公开(公告)日：2019-12-17

申请号：US15273043

申请日：2016-09-22

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Yannan Jin ,  Geng Fu ,  Peter M. Edic ,  Hewei Gao

IPC: A61B6/03 ,  A61B6/00 ,  G01T7/00 ,  G01N23/046 ,  G06T11/00 ,  G01T1/169

Abstract: There is set forth herein a method including performing with an X-ray detector array of a CT imaging system one or more calibration scans, wherein the one or more calibration scans include obtaining for each element of the first through Nth elements of the X-ray detector array one or more calibration measurements; and updating a spectral response model for each element of the first through Nth elements using the one or more calibration measurements. In another aspect, a CT imaging system can perform imaging, e.g. including material decomposition (MD) imaging, using updated spectral response models for elements of an X-ray detector array. The spectral response models can be updated using a calibration process so that different elements of an X-ray detector array have different spectral response models.