Table 6: Diagnostic Accuracy of Studies Directly and Indirectly Comparing Stress Echocardiography to SPECT.

	Stress ECHO		SPECT
	Indirect	Direct	Indirect	Direct
Pooled Sensitivity (95% C.I.)	0.80 (0.77 – 0.82)	0.78 (0.72 – 0.84)	0.86 (0.84 – 0.89)	0.89 (0.85 – 0.93)
Pooled Specificity (95% C.I.)	0.84 (0.82 – 0.87)	0.88 (0.83 – 0.94)	0.71 (0.67 – 0.76)	0.70 (0.59 – 0.80)

SPECT, single photon emission computed tomography; stress ECHO, stress echocardiography