Table 3. Receiver Operating Characteristic Analysis of Vessel Wall Enhancement and Stenosis for Discrimination of PAD versus SAD.

Method of Measurements	AUC	Criterion	Sensitivity (%)	Specificity (%)
Geometric mean	1 (0.86–1)	> 0.35	100 (78.2–100)	100 (69.2–100)
Lesion side 90P	1 (0.86–1)	> 0.73	100 (78.2–100)	100 (69.2–100)
Visual enhancement score	0.90 (0.72–0.98)	> 1	93.33 (68.1–99.8)	90.0 (55.5–99.7)
Stenosis of lesion side M1	0.83 (0.63–0.95)	> 20.25%	66.7 (38.4–88.2)	100 (69.2–100)
Volume of measured M1	0.59 (0.38–0.78)	> 44 mm3	100 (78.2–100)	30 (6.7–65.2)

Numbers within parentheses are 95% CI. AUC = area under the receiver operating characteristic curve, CI = confidence interval, PAD = parent artery disease, SAD = small artery disease, 90P = 90th percentile