TABLE 4

Diagnostic Capabilities of Scintigraphic Parameters with Best Thresholds for Detection of Multivessel CAD

Criteria for detection of multivessel CAD	No. of diseased vessels				Sensitivity (%)	Specificity (%)	Accuracy (%)
	0 or 1 (n = 115)		2 or 3 (n = 67)
	Negative	Positive	Negative	Positive
Perfusion data alone	115	0	49	18	26.9	100	73.1
LVEF
Postexercise	104	11	50	17	25.4	90.4*	66.5
Rest	104	11	50	17	25.4	90.4*	66.5
Worsening by exercise	104	11	47	20	29.9	90.4*	68.1
Lung/heart
Postexercise	104	11	50	17	25.4	90.4*	66.5
Difference (rest − postexercise)	104	11	50	17	25.4	90.4*	66.5
RV/LV
Postexercise	104	11	51	16	23.9	90.4*	65.9
Rest	104	11	52	15	22.4	90.4*	65.4
Combination with perfusion data
LVEF
Postexercise	104	11	42	25	37.3	90.4*	70.9
Rest	104	11	40	27	40.3	90.4*	72.0
Worsening by exercise	104	11	38	29	43.3*	90.4*	73.1
Lung/heart
Postexercise	104	11	41	26	38.8	90.4*	71.4
Difference (rest − postexercise)	104	11	42	25	37.3	90.4*	70.9
RV/LV
Postexercise	104	11	41	26	38.8	90.4*	71.4
Rest	104	11	40	27	40.3	90.4*	72.0