Patent ID: 8467494
Filing Date: 2013-06-18
Classification: A61B

Abstract:
1. An imaging system, comprising: a radiation source, including an anode, that rotates around an examination region about a longitudinal axis and emits radiation from a focal spot on the anode, wherein a power level of the radiation source is a same power level used with a cone angle that is about equal to the effective maximum cone angle determined by the heel effect, which is determined by an anode angle of the anode; a source collimator that collimates the emitted radiation to produce a generally conically shaped radiation beam that traverses the examination region, wherein the generally conically shaped radiation beam has an extended cone angle along the longitudinal axis that is greater than an effective maximum cone angle determined by an anode angle of the anode; a detector array that detects radiation that traverses the examination region and generates signals indicative thereof; and a reconstructor that reconstructs the signals to generate volumetric image data indicative of the examination region.