Table 3.

Test characteristics of the three methods used to diagnose obstructive coronary artery disease in the 37 patients submitted to invasive angiography; none of the comparisons was statistically significant. The confidence intervals are shown in parentheses

	Overall coronary artery disease			Vessel specific analysis
	MPI	MPI + CTA	Fused	MPI	MPI + CTA	Fused
Sensitivity	82% (63–93)	79% (59–92)	89% (72–98)	65% (52–78)	75% (61–85)	76% (63–87)
Specificity	44% (14–79)	56% (21–86)	67% (30–92)	71% (58–83)	77% (64–87)	80% (68–90)
Accuracy	73% (56–86)	73% (56–86)	84% (68–94)	68% (59–77)	76% (67–83)	78% (70–86)

CTA, Computed tomography angiography; MPI, myocardial perfusion imaging.