Figure 3From: Transthoracic coronary flow reserve and dobutamine derived myocardial function: a 6-month evaluation after successful coronary angioplastyCFR and Sm peak velocity of middle septum at high-dose dobutamine in a patient with SPECT derived normal perfusion. The upper panels show coronary artery flow velocity in the LAD at baseline and with a normal increase with dipyridamole (DIP). In the lower panels, myocardial systolic velocity (Sm) shows a normal increase at high-dose dobutamine.Back to article page