1. A system for providing a noninvasively derived fractional flow reserve and a computerized model of a portion of an anatomy of a patient, the system comprising: at least one computer system configured to: create a three-dimensional model representing at least a portion of multiple coronary arteries emanating from the patient's aorta, using patient-specific imaging data derived from a noninvasive imaging source; create a blood flow model representing blood flow through at least a portion of multiple coronary arteries; create a multi-dimensional model using the three-dimensional model and the blood flow model; determine a fractional flow reserve value for at least one location of the coronary arteries, using the multi-dimensional model and without using any invasive fractional flow reserve measurement technique; and display the three-dimensional model and the determined fractional flow reserve value together on a display device.