4D - - image recording velocity profile with a magnetic resonance system

摘要

A method (200) for producing 4d - flow images (4d - fgfd) by means of a magnetic resonance system (1), comprising the steps of:– Receiving a volumetric flow - data record (rd), wherein the flow in a single direction is encoded,– a – to multiple repetition of the preceding step with a respective one of a plurality of different flow coding directions,– Calculating phase images (pbd) from the data (rd), the respective flow coding directions are allocated,– Calculating magnitudes images (mbd) from the data (rd), the respective flow coding directions are allocated,– Calculating deformation fields (dfd) on the basis of the magnitudes images (mbd),– Performing a image registration of the calculated phase images by applying the deformation fields are caculated (dfd) on the calculated phase images (pbd),– Calculating a 4d - flow - velocity field (4d - fgfd) based on a phase difference reconstruction of the with the aid of the image registration corrected phase images (kpbd).