1. A system operable to display a four-dimensional (4D) model of an imaged anatomy, comprising: a controller; an imaging system including an imaging probe in communication with the controller, the imaging probe operable to acquire generally real-time, three-dimensional (3D) image data relative to a direction of image acquisition along an imaging plane; and a tracking system in communication with the controller, the tracking system including at least one tracking element integrated with the imaging probe, wherein the system is operable to process the real-time, 3D image data acquired by the imaging probe relative to generally real-time tracking information acquired by the tracking system so as to display a 4D model of the imaged anatomy.