Patent ID: 8718227
Filing Date: 2014-05-06
Classification: A61B,G01N,G01T

Abstract:
1. A CT scanner comprising: a rotor rotatable about an axis of rotation; an X-ray source mounted to the rotor having a focal spot from which an X-ray beam emanates; an X-ray detector array comprising a plurality of X-ray detectors for detecting X-rays in the X-ray beam that have been attenuated by an imaged body, wherein the detector array has at least one high resolution region in which the detector array has a high density and at least one low resolution region in which the detector array has a low density, and wherein the at least one low resolution area is displaced from the at least one high resolution area along a direction perpendicular to the axis of rotation; and a processor adapted to reconstruct images for a portion of a body covered by the detector array high resolution region; wherein said reconstruction includes processing of data for a portion of a body covered by the detector array low resolution region to estimate data that would be acquired for the body portion were the detector array low resolution region to have a resolution substantially equal to that of the detector array high resolution region.