1. An apparatus for diagnostic imaging comprising: a memory, which stores a plurality of 3D images, each 3D image depicting a common anatomical region of interest of a subject with portions of the subject anatomy differently positioned in each of the 3D images; a processor for fixing a designated anatomical component in each of the consecutive 3D images; and a video processor for displaying viewing planes of the 3D images in a cine format, in which the designated anatomical component remains fixed in each consecutive viewing plane image while other portions of the anatomical region move relative to the designated anatomical component.