A method is provided for flow analysis in a target volume of a moving organ, which involves a sequence of first volumetric image data sets that include structural information and three-directional velocity information of the target volume and a sequence of second volumetric image data sets that include structural information of the target volume. The method involves tracking a feature of interest within the sequence of the second volumetric data sets, determining time varying spatial orientation of a plane containing the feature of interest in the sequence of the first volumetric image data sets by transferring the plane from the second volumetric image data sets to the first volumetric image data sets, reformatting the three-directional velocity information into one-directional velocity information on the plane, and performing bi-dimensional quantitative flow analysis using the one-directional velocity information. A corresponding apparatus and computer program are also disclosed and claimed.
