1. A method of decomposing digital medical images, comprising the steps of: providing a digital medical image, comprising a plurality of intensities associated with an N-dimensional grid of voxels; segmenting said image into one or more biological structures; extracting one or more segmented biological structures from said image by extracting all voxels within a spatial extent of each of the biological structures to construct one or more new N-dimensional component volumes of said biological structures; for each of said one or more new component volumes, generating a sequence of 2-dimensional projective views by moving a projection viewpoint around each said biological structure in said one or more new component images, and generating a 2-dimensional projective view from each viewpoint; and displaying a cine loop of said sequence of projective views wherein said biological structures appear to be rotating in said display.