Table 2 The performance of US and frozen section in the evaluation of axillary lymph node status
| Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | Accuracy (95% CI) | |
|---|---|---|---|---|---|
| Ultrasound | 95.45% (87.29–99.05) | 82% (74.90–87.79) | 70% (62.29–76.73) | 97.62% (93.12–99.20) | 86.11% (80.77–90.43) |
| Frozen | 90.91% (81.26–96.59) | 96% (91.50–98.52) | 90.91% (81.98–95.65) | 96% (91.79%–98.1) | 94.4% (90.50–87.10) |