Patent ID: 6014419
Filing Date: 2000-01-11
Classification: A61B,G06T,Y10S

Abstract:
In an imaging system wherein a detector is mounted for measuring radiation emanating in a cone beam of rays which converge at a focal point, a method for reconstructing an image of an object comprising the steps of:establishing relative movement between said cone beam focal point and said object along a composite scan path, comprising primary and supplementary scan path components;acquiring a set of cone beam data of said object with said detector during movement along said supplementary scan path component, said cone beam data associated with said supplementary scan path to be used only for deriving information which cannot be derived from other cone beam data that is associated with the primary scan path;computing a set of values of an intermediate function from said cone beam data, each of said computed values having an associated location defined by a prespecified point grid lying on the detector plane; andemploying each of said computed values to compute the supplementary component of a reconstruction function of said object.