Patent ID: 8027526

Claim:
A method for generating a 3D X-ray image dataset of a heart of a patient, comprising: recording a sequence of 2D X-ray images of the heart with heartbeat phases at image recording instants being measured and assigned to the images; dividing a range of the heartbeat phases into a plurality of intervals; generating a plurality of 3D image datasets, each 3D image dataset being generated from the 2D X-ray images assigned to a heartbeat phrase from a respective interval; assigning each 3D image dataset to the heartbeat phase from the respective interval; choosing one of the 3D image datasets as a reference image dataset; calculating movement fields of remaining 3D image datasets relative to the reference image dataset; selecting a heartbeat phase from the heartbeat phases; picking a 2D X-ray image assigned to the selected heartbeat phase; generating a second 3D image dataset from the picked 2D X-ray image; determining a position of the selected heartbeat phase relative to the heartbeat phases; calculating an interpolated movement field for the second 3D image dataset relative to the reference image dataset based on the movement fields and the position; and deforming the second 3D image dataset using the interpolated movement field to generate the 3D X-ray image dataset.