Movie 6.9A: POSITIVE contrast enhanced dobutamine stress echocardiogram. Apical four-chamber view with akinesis of the basal to mid-inferoseptal wall. Baseline left ventricular apical akinesis improves with low-dose dobutamine and worsens with increasing doses (biphasic response) suggestive of significant left anterior descending disease.

Movie 6.8   |   Movie 6.9A   |   Movie 6.9B