Table 3.
The diagnostic performance of CT texture parameters in predicting VEGFR2 and Ki67 expression levels in gastric cancers.
| Parameters | Cut-off | Sen (%) | Spe (%) | Acc (%) | AUC | P value | |
|---|---|---|---|---|---|---|---|
| Ki67 + vs. − | Skewness (A) | −0.21 | 45.7 | 86.4 | 65.4 | 0.647 | 0.002 |
| Mean# (V) | 86.74 | 82.9 | 42.4 | 63.2 | 0.621 | 0.013 | |
| Autocorrelation (V) | 470.02 | 82.9 | 42.4 | 63.2 | 0.621 | 0.013 | |
| VEGFR2 + vs. − | SD (V) | 20.81 | 41.3 | 81.2 | 62.1 | 0.612 | 0.022 |
| Entropy (V) | 4.39 | 38.1 | 85.5 | 62.9 | 0.626 | 0.010 | |
| Width# (V) | 53.00 | 42.9 | 79.7 | 62.1 | 0.620 | 0.014 | |
| Contrast (V) | 26.58 | 39.7 | 82.6 | 62.1 | 0.615 | 0.019 |
Note: A: arterial phase; V: venous phase; Sen: sensitivity; Spe: specificity; Acc: accuracy; AUC: area under the receiver operating characteristic (ROC) curve; +: positive expression; −: negative expression; SD: standard deviation; #HU (Hounsfield unit).