Table 1 Qualitative analysis of 124 hepatic nodules by MRI and diffusion WI
Reader 1 | DWI | p value | Reader 2 | DWI | p value | |||
|---|---|---|---|---|---|---|---|---|
Pre-contrast | Post-contrast | Pre-contrast | Post-contrast | |||||
TP(n) | 95 | 100 | 100 | 93 | 102 | 103 | ||
TN(n) | 20 | 18 | 20 | 22 | 19 | 16 | ||
FP(N) | 4 | 5 | 2 | 4 | 2 | 3 | ||
FN(N) | 5 | 3 | 2 | 5 | 1 | 2 | ||
Sensitivity (%) | 94.5 | 93.5 | 96.3 | 0.89 | 91.5 | 89.4 | 97.4 | 1.02 |
Specificity (%) | 92.4 | 92.6 | 93.8 | 92.5 | 88.9 | 94.3 | ||
PPV (%) | 95.7 | 95.3 | 97.2 | 95.6 | 93.8 | 96.4 | ||
NPV (%) | 90.1 | 89.3 | 86.8 | 88.9 | 84.3 | 84.7 | ||