1. A method for ultrasonography training using image to physical space registration of tomographic volumes from tracked ultrasound, the method comprising: (a) acquiring and storing a plurality of tomographic volumes from tracked ultrasound; (b) retrieving, using an image-guided procedure (IGP) system, one of the stored tomographic volumes; (c) using a tracked ultrasound probe coupled to the IGP system on a test patient; and (d) displaying images based on the retrieved volume that correlate to the physical space as determined by the position of the tracked ultrasound probe.