1. A medical imaging system for generating 3D anatomical images from acquired 2D anatomical images, comprising: a synchronization processor for providing a synchronization signal identifying a particular phase of heart operation of a particular patient; an image acquisition device for acquiring 2D anatomical images of a patient heart in angularly variable imaging planes over a plurality of different heart cycles at said particular phase of heart operation in response to said synchronization signal and in response to recorded data indicating imaging previously being performed at particular imaging plane angles to prevent imaging overlap at said particular imaging plane angles and to prevent unnecessary radiation exposure of said patient; and an image processor for, storing the recorded data, and processing 2D images acquired by said image acquisition device of said patient heart in a plurality of different imaging planes having relative angular separation, to provide a 3D image reconstruction of said patient heart.