Table 2 Comparison of diagnostic efficacy between ctEMVI and short-axis diameter for N stage ≥ N2 and N3 stage
Sensitivity | Specificity | PPV | NPV | Accuracy | ||
|---|---|---|---|---|---|---|
N stage ≥N2 | Short-axis diameter | 33%(23/70) | 74%(41/55) | 62%(23/37) | 46%(46/88) | 52%(64/125) |
ctEMVI | 83%(58/70) | 65%(36/55) | 75%(58/77) | 75%(36/48) | 75%(94/125) | |
P | < 0.001 | 0.298 | 0.147 | 0.01 | < 0.001 | |
N3 stage | Short-axis diameter | 21%(9/43) | 71%(58/82) | 27%(9/33) | 63%(58/92) | 54%(67/125) |
ctEMVI | 93%(38/41) | 54%(45/84) | 49%(38/77) | 94%(45/48) | 66%(83/125) | |
P | < 0.001 | 0.036 | 0.024 | < 0.001 | 0.039 |