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Table 2 The performance of US and frozen section in the evaluation of axillary lymph node status

From: Can intraoperative ultrasound replace the frozen section in the assessment of ex vivo sentinel lymph node biopsy in early breast cancer in countries with limited resources?

  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)