Table 3 Diagnostic indexes of enhancing types by the 2 different classification methods

From: Percutaneous Sonazoid-enhanced ultrasonography combined with in vitro verification for detection and characterization of sentinel lymph nodes in early breast cancer

Diagnostic index Classification 1 Classification 2
Coincidence rate 90.02% (92/102) 86.27% (88/102)
Sensitivity 88.46% (23/26) 92.31% (24/26)
Specificity 90.79% (69/76) 84.21% (64/76)
Positive predictive value 76.67% (23/30) 66.67% (24/36)
Negative predictive value 95.83% (69/72) 96.97% (64/76)
False-negative rate 11.54% (3/26) 7.69% (2/26)
False-positive rate 9.21% (7/76) 15.79% (12/76)