Table 4.

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

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%

LNM: lymph node metastases.

ECE: extracapsular extension.

AUC: area under curve.