A computerized method of processing images, in which • individual images succeed one another in a direction of succession, said direction is a time direction, • a multi-dimensional data set is constructed from the individual images, • said multi-dimensional data set assigns data values to positions in a multi-dimensional space, • said multi-dimensional space is set up by the direction of succession and two directions parallel to the surface of the individual images, • respective slices through the multi-dimensional data set are reconstructed along a plurality of cut planes (3, 4, 5) through the multi-dimensional space, wherein the slices represent data in the multi-dimensional data set, that is, data values arranged along the respective cut plane, and • the directions of the individual cut planes have a component in the direction of succession, characterized in that • a region of interest (7, 8, 9) is located on the basis of the cut planes (3, 4, 5), wherein a segmentation of the region of interest in two or more relevant individual images is performed on the basis of information in the reconstructed slices along the cut planes through the multi-dimensional data set, wherein individual edges are located in the reconstructed individual slices along the cut planes and tracked, and wherein the segmentation of the region of interest in the relevant individual images is performed on the basis of the individual locations of the respective edges found in the reconstructed individual slices along the cut planes, wherein at least two individual locations in each relevant individual image are found by finding at least two points of intersection of the respective edges in the cut planes with each relevant individual image, wherein a boundary of the region of interest is derived by interpolation between the individual locations in each relevant individual image, wherein due to correlations existing between data values of successive images the edges are visible in the reconstructed slices, wherein these edges are located in the reconstructed slices and the edges located in the reconstructed slices are used for determining the edge of the region of interest in individual images and for segmenting the region of interest in the individual images. • individual images succeed one another in a direction of succession, said direction is a time direction, • a multi-dimensional data set is constructed from the individual images, • said multi-dimensional data set assigns data values to positions in a multi-dimensional space, • said multi-dimensional space is set up by the direction of succession and two directions parallel to the surface of the individual images, • said multi-dimensional data set assigns data values to positions in a multi-dimensional space, • said multi-dimensional space is set up by the direction of succession and two directions parallel to the surface of the individual images, • respective slices through the multi-dimensional data set are reconstructed along a plurality of cut planes (3, 4, 5) through the multi-dimensional space, wherein the slices represent data in the multi-dimensional data set, that is, data values arranged along the respective cut plane, and • the directions of the individual cut planes have a component in the direction of succession, characterized in that • a region of interest (7, 8, 9) is located on the basis of the cut planes (3, 4, 5), wherein a segmentation of the region of interest in two or more relevant individual images is performed on the basis of information in the reconstructed slices along the cut planes through the multi-dimensional data set, wherein individual edges are located in the reconstructed individual slices along the cut planes and tracked, and wherein the segmentation of the region of interest in the relevant individual images is performed on the basis of the individual locations of the respective edges found in the reconstructed individual slices along the cut planes, wherein at least two individual locations in each relevant individual image are found by finding at least two points of intersection of the respective edges in the cut planes with each relevant individual image, wherein a boundary of the region of interest is derived by interpolation between the individual locations in each relevant individual image, wherein due to correlations existing between data values of successive images the edges are visible in the reconstructed slices, wherein these edges are located in the reconstructed slices and the edges located in the reconstructed slices are used for determining the edge of the region of interest in individual images and for segmenting the region of interest in the individual images.