Table 2. Diagnostic Performance of SF-FFR versus CFD-FFR for Demonstration of Ischemia (FFR ≤ 0.80).

Method		TP	TN	FP	FN	Sensitivity	Specificity	PPV	NPV	Accuracy
FN: false negative; FP: false positive; NPV: negative predictive value; PPV: positive predictive value; TN: true negative; TP: true positive.
Patient level	SF-FFR	34	24	2	4	0.89 (0.81,0.97)	0.92 (0.82,1.00)	0.94 (0.88,1.00)	0.86 (0.75,0.96)	0.91 (0.84,0.97)
	CFD-FFR	32	23	3	6	0.84 (0.74,0.94)	0.88 (0.77,0.97)	0.91 (0.83,0.97)	0.79 (0.66,0.92)	0.86 (0.78,0.92)
	P-value					0.731	0.995	−	−	0.552
Vessel level	SF-FFR	39	28	4	4	0.91 (0.83-0.98)	0.88 (0.78-0.97)	0.91 (0.83-0.98)	0.88 (0.78-0.97)	0.89 (0.84-0.94)
	CFD-FFR	36	29	3	7	0.84 (0.74-0.93)	0.91 (0.81-0.98)	0.92 (0.85-0.98)	0.81 (0.69-0.91)	0.87 (0.80-0.93)
	P-value					0.344	0.999	−	−	0.603