A method for registering a series of 2d - image data of a hollow space organ with 3d - image data of the hollow space organ

摘要

The present invention relates to a process for the registration of a sequence of 2 - d - image data (5) of a hollow space member (2), in particular of a vessel, the with an imaging, endoluminal instrument (1) in the case of known relative displacement positions of the instrument (1) in the hollow space member (2) have been registered, with 3 - d - image data (8) of the hollow space member (2). In the method, from the 3 - d - image data (8) a three-dimensional curve of a central axis (10) of a predetermined section of the hollow space member (2) is determined, the three-dimensional course of the central axis (10) by means of a first transformation of the 3 - d - image data (8) of the predetermined section of the hollow space member (2) and converted into a straight course for the first transformation necessary transformation parameters stored. From the sequence of 2 - d - image data (5) is, by means of the parallel arrangement on a central straight path corresponding to the known relative displacement positions, a combined 3 - d - image data set (11) is generated which, in the by equating of the central straight line with the straight course of the central axis (10) and translation to the superimposition of a common reference point, first with the transformed 3 - d - image data (9) is recorded. Subsequently, the combined 3 - d - image data set (11) or the data contained therein 2 - d - image data (5), taking into account of the stored transformation parameters with the 3 - d - image data (3) is recorded.