TABLE 2

Diagnostic Accuracy for Detecting Coronary Artery Disease

Predictor	Area under curve	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Phase SD	0.53	48	57	66	38
Histogram bandwidth	0.53	51	59	68	40
PSS index	0.64	55	70	76	47
SSS	0.71	74	55	74	55
SRS	0.52	45	55	64	36
SDS	0.74	74	66	79	59