Table 4.
Diagnostic performances of different parameters to predict ECE in PTC patients.
| Parameters | Sensitivity(%) | Specificity(%) | Accuracy(%) | PPV(%) | NPV(%) | Cut-off score | AUC |
|---|---|---|---|---|---|---|---|
| TPH | 75.4 (43/57) | 78.9 (41/52) | 77.1 (84/109) | 79.6 (43/54) | 74.6 (41/55) | 57.97 sec | 0.817 |
| WIS | 87.7 (50/57) | 42.3 (22/52) | 66.1 (72/109) | 62.5 (50/80) | 75.9 (22/29) | 0.64 dB/sec | 0.685 |
| Tumor Size | 71.9 (41/57) | 65.4 (34/52) | 68.9 (75/109) | 69.5 (41/59) | 68.0 (34/50) | 7.6 mm | 0.699 |
ECE: extracapsular extension. PTC: papillary thyroid carcinoma. TPH: time from peak to one half. WIS: wash in slope. PPV: positive predictive value. NPV: negative predictive value. AUC: area under the curve.