Patent ID: 6760399
Filing Date: 2004-07-06
Classification: A61B

Abstract:
A CT system including:a plurality of cone beam x-ray sources mounted on a gantry for rotation about an axis of rotation, said x-ray sources: (1) generating a cone beam of radiation for volumetric imaging, (2) being angularly offset at different angular locations around the axis of rotation, and (3) being axially offset at different axial locations along the axis of rotation; a plurality of two-dimensional, multi-slice x-ray detector arrays mounted on said gantry for rotation about the axis of rotation, each detector array situated opposite to an associated one of said cone-beam x-ray sources, the detector arrays being axially offset at the different axial locations along the axis of rotation, each of said detector arrays having multiple rows of detectors in the axial direction, said multiple rows of detectors defining a plurality of slices at said different axial locations along the axis of rotation during a single rotation; the detector arrays and the x-ray sources being axially offset such that the slices defined by each of the detector arrays overlap only in part with the slices defined by an adjacent one of the detector arrays.