Click on image to view larger version.

Figure 1 Histogram showing sensitivity (SENS), specificity (SPEC), accuracy (ACC), negative (NPV) and positive (PPV) predictive value of dipyridamole (Dip), dobutamine (DOB) stress echocardiography, and myocardial perfusion scintigraphy (MIBI), for the detection of CAD, in hypertensive patients with chest pain and positive exercise test. Open bars: MIBI; solid bars: Dip; striped bars: DOB.