For analysis of myocardial function, an axial image series at the mid ventricular level showing papillary muscles through the entire cardiac cycle will be performed to visually identify the maximal systolic constriction phase and diastolic phase as the images showing the largest and smallest left ventricular cavity area, respectively. The corresponding delay in milliseconds from the R peak of the ECG will be used for image reconstruction. Then, a short and a ling axis reconstructed views will be performed to be analyzed at diastole and systole using Simson's disk method to calculate cardiac function.