The first acquisitions to be performed will be combined cine-gradient echo/cine phase velocity approach that will obtain both the magnitude images required for our segmentation and shape-based tracking as well as contrast data for finding midwall myocardial velocities in a single image acquisition. This sequence will yield adjacent 5 mm thick axial images with in plane resolution of approximately 1.6mm x 1.6mm. We will acquire 16-20 cardiac phase per location. Patients will receive 0.1 mmol/kg of standard gadolinium contrast in a peripheral IV. The acquisition will apply inversion recovery preparatory pulse to null normal myocardium, followed by a segmented k-space gradient echo acquisition. We anticipate that all of the proposed magnetic resonance imaging for each subject will be completed within 2 hours. The technologist or doctor operating the scanner will be able to see the subject. The operator will maintain contact by voice with the subjects.