Table 3. Diagnostic Performance of CESM and US.

Diagnostic Performance	CESM	US	P
Sensitivity (%)	93.8 (60/64, 87.7–99.8)	90.6 (58/64, 83.3–98.0)	0.687
Specificity (%)	88.1 (59/67, 80.1–96.0)	82.1 (55/67, 72.7–91.5)	0.388
PPV (%)	88.2 (60/68, 80.4–96.1)	82.9 (58/70, 73.8–91.9)	0.370
NPV (%)	93.7 (59/63, 87.5–99.8)	90.2 (55/61, 82.5–97.9)	0.702
Accuracy (%)	90.8 (119/131, 85.8–95.8)	86.3 (113/131, 80.3–92.2)	0.238

Number of cases used in calculation of diagnostic values and 95% confidence intervals are in parentheses. NPV = negative predictive value, PPV = positive predictive value