Table 5. Diagnostic accuracy for detecting coronary stenosis with > 50% lumen diameter reduction.

	Sensitivity	Specificity	PPV	NPV
Coronary CTA alone	11/11, 100% (71.3-100%)	11/16, 68.8% (41.4-88.8%)	11/16, 68.8% (41.4-88.8%)	11/11, 100% (71.3-100%)
Coronary CTA + MBF cut-off (184.5 ml/100g/min)	13/13, 100% (75.1-100%)	11/14, 78.6% (49.2-95.1%)	13/16, 81.2% (54.6-95.7%)	11/11, 100% (71.3-100%)

Coronary CTA + MBF cut-off (184.5 ml/100g/min): combined assessment of coronary computed tomography angiography and the receiver operating characteristic curve based myocardial blood flow cut-off value for detecting significant coronary artery stenosis (> 50%). PPV and NPV: positive and negative predictive values. Data are expressed as n/N, %, 95% confidence interval.