| Measurement | Formula |
| Pulmonary artery/aortic area | π(diameter/2)2 |
| Right Ventricular Stroke volume | PA area x VTI |
| Cardiac Output | heart rate x stroke volume |
| Cardiac Index | cardiac output / body surface area |
| Fractional Shortening | (LV end-diastolic dimension - LV end-systolic dimension) / LV end-diastolic dimension |
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