Table 3

Accuracy of low dose dobutamine echocardiography (LDDE) and ²⁰¹thallium SPECT in predicting functional recovery after revascularisation of akinetic segments in patients with a non-occluded (group 1) and an occluded (group 2) left anterior descending coronary artery

		LDDE			²⁰¹Thallium SPECT
		Group 1	Group 2		Group 1	Group 2
Sensitivity	72% (13/18)	26% (9/34)3-165		67% (10/15)	79% (19/24)3-170
Specificity	94% (46/49)	93% (52/56)		26% (5/19)3-170	60% (9/15)3-164
Accuracy	88% (59/67)	68% (61/90)3-160		44% (15/34)3-151	72% (28/39)3-150
PPV	81% (13/16)	69% (9/13)		42% (10/24)3-151	76% (19/25)3-150
NPV	90% (46/51)	67% (52/77)3-160		50% (5/10)3-151	64% (9/14)

↵3-150 p < 0.05;
↵3-160 p < 0.01;
↵3-165 p < 0.001v group 1.
↵3-151 p > 0.05;
↵3-164 p < 0.01;
↵3-170 p < 0.001v LDDE.
NPV, negative predictive value; PPV, positive predictive value; SPECT, single photon emission computed tomography.