Table 4 ROC analyses of the independent parameters in identifying cervical LNM from patients with PTCs.

From: Values of ultrasound features and MMP-9 of papillary thyroid carcinoma in predicting cervical lymph node metastases

Parameters

AUC

95% CI

Cut-off value

Sensitivity

Specificity

Tumor size

0.722

0.640–0.804

0.95 cm

62.0%

76.5%

Margin

0.634

0.547–0.722

Ill-defined

77.5%

49.4%

Heterogeneous low-enhancement

0.642

0.554–0.729

Heterogeneous low-enhancement

71.8%

56.5%

ECE on CEUS

0.786

0.710–0.863

ECE

62.0%

95.3%

  1. LNM: lymph node metastases.
  2. ECE: extracapsular extension.
  3. AUC: area under curve.
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