Producing 4D image data records of moving tubular structure involves recording 3D central line points projected into second 2D images to obtain 2D central line points, iterating for more phases

摘要

The method involves determining central 2D central line points in 2D projection images of a first movement phase, modeling first 3D central line points in the same phase, projecting the first 3D central line points into second 2D images of a second phase, recording the 3D central line points projected into the second 2D images to obtain 2D central line points, iterating, determining the profile in the 2D images and reconstructing 3D images. The method involves determining central 2D central line points in at least two 2D projection images acquired in the same first movement phase (S1), modeling first 3D central line points in the same first phase (S2), projecting the first 3D central line points into at least two second 2D images acquired in a second phase (S3), recording the 3D central line points projected into the second 2D images to obtain 2D central line points (S4), iterating for more phases, determining the profile of the tubular structure element in the 2D images (S6) and reconstructing 3D images in different phases (S7). Independent claims are also included for the following: (a) an arrangement for producing four-dimensional image data records of a moving tubular structure (b) a computer program with a computer program arrangement for causing a computer to implement the inventive method.