SYSTEMS AND METHODS FOR IMAGING PHASE SELECTION FOR COMPUTED TOMOGRAPHY IMAGING

摘要

An imaging system includes a computed tomography (CT) acquisition unit and a processing unit. The CT acquisition unit includes an X-ray source and a CT detector configured to collect CT imaging data of an object to be imaged. The processing unit includes at least one processor operably coupled to the CT acquisition unit. The processing unit is configured to control the CT acquisition unit to collect at least one sample projection during rotation of the CT acquisition unit about the object to be imaged, compare an intensity of the at least one sample projection to an intensity of a reference projection, select a time to perform an imaging scan based on the comparison of the intensity of the at least one sample projection to the intensity of the reference projection, and control the CT acquisition unit to perform the imaging scan.

主权项

1. An imaging system comprising:
a computed tomography (CT) acquisition unit comprising an X-ray source and a CT detector configured to collect CT imaging data of an object to be imaged, the X-ray source and CT detector configured to be rotated about the object to be imaged and to collect a series of projections of the object as the X-ray source and CT detector rotate about the object to be imaged; and a processing unit comprising at least one processor operably coupled to the CT acquisition unit, the processing unit configured to:
control the CT acquisition unit to collect at least one sample projection during rotation of the CT acquisition unit about the object to be imaged,compare an intensity of the at least one sample projection to an intensity of a reference projection,select a time to perform an imaging scan based on the comparison of the intensity of the at least one sample projection to the intensity of the reference projection, andcontrol the CT acquisition unit to perform the imaging scan.