Patent ID: 7593558
Filing Date: 2009-09-22
Classification: A61B,G06T

Abstract:
1. An method of compensating for a periodic movement of an organ recorded, the method comprising: acquiring a first sequence of three-dimensional image data of the organ by a first imaging mechanism using a gating based on a periodic signal originating from the organ; acquiring a second sequence of three-dimensional image data of the organ by a second imaging mechanism using the gating; calculating a plurality of motion fields relative to a reference point in time related to the periodic movement of the organ based on the second sequence; mapping the first sequence to a reference sequence using the calculated motion fields, the reference sequence having a reference sequence of three-dimensional image data relative to the reference point in time; and generating a single image data set based on the reference sequence, the single image data set representing the organ at the reference point in time; wherein the single image data set is generated by adding up corresponding voxels of the three-dimensional image data of the reference sequence.