Patent ID: 7689019

Claim:
A method for registering a plurality of 2D projection images of an object relative to 3D image data record of the object, comprising: recording the plurality of 2D projection images of the object from a plurality of projection angles; spatially and symbolically reconstructing a 3D model of a target structure of the object by a computing device from the 2D projection images using a model function, wherein the 3D model of the target structure is identifiable both in the 3D image data record and in the 2D projection images; and registering the 3D model of the target structure relative to the 3D image data record using a 3D-3D registration in which the target structure in the 3D image data record is harmonized with the 3D model of the target structure, wherein a relationship is established by the registration between the coordinate system of the 3D image data record and the coordinate system of the 2D projection images.