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. 2021 May;10(5):1638–1645. doi: 10.21037/gs-21-87

Table 3. Sensitivity, specificity, PPV, and NPV of CEUS for the detection of metastasis in SLNs identified using SNV and SNZ.

SLN Detection Qualities SNV SNZ
Sensitivity 78.95% (30/38) 88.46% (23/26)
Specificity 94.77% (163/172) 90.79% (69/76)
Accuracy 91.90% (193/210) 90.20% (92/102)
PPV 76.92% (30/39) 76.67% (23/30)
NPV 95.31% (163/171) 95.83% (69/72)

PPV, positive predictive value; NPV, negative predictive value; CEUS, contrast-enhanced ultrasonography; SLN, sentinel lymph node; SNV, SonoVue®; SNZ, Sonazoid®.