Comparative Analysis between SPECT Myocardial Perfusion Imaging and CT Coronary Angiography for Diagnosis of Coronary Artery Disease

Table 3

The diagnostic indexes of MPI and CTCA and comparison between them in 56 patients.

Indexes	MPI	CTCA	𝑃 values
True positive	24	27
True negative	20	22
False positive	5	3
False negative	7	4
Sensitivity	82.8%	90.0%	0.67^* (0.19)
Specificity	74.1%	84.6%	0.34^* (0.90)
Accuracy	78.6%	87.5%	0.21^* (1.59)

^*Chi-square test, value of 𝜒² in brackets.