Patent ID: 8135196
Filing Date: 2012-03-13
Classification: A61B,G06T

Abstract:
1. An operating method for imaging a moving examination object of a living body by a pivotal poly-plane imaging unit having a first and a second image recording units recording projection images of the moving examination object at a fan angle β, the method comprising: arranging the first and the second image recording units relative to each other by an offset angle γ so that a first imaging plane of the first image recording unit is overlapped with a second imaging plane of the second image recording unit and no gaps between the first and the second imaging planes during the recording; mutually synchronized recording a first set and a second set of projection images of the moving examination object by the first and the second image recording units in a single rotational pass respectively in two different positions differing by the offset angle γ at respective same instants, the first and the second image recording units being pivoted about an angle at least 180°+β; detecting characteristic structures in the first set and the second set of projection images; segmenting the characteristic structures by a vectorial representation of the characteristic structures; triangulating the characteristic structures to obtain a three-dimensional representation of the characteristic structures; determining three-dimensional displacement vector fields indicating displacements of the three-dimensional representation of the characteristic structures relative to a reference instant; and reconstructing a three-dimensional image of the moving examination object using the three-dimensional displacement vector fields to display a state of the moving examination object at the reference instant.