Efficacy of Shear-Wave Elastography for Detecting Postoperative Cervical Lymph Node Metastasis in Papillary Thyroid Carcinoma

Table 2

ROC results and diagnostic performance of elasticity indices for predicting metastatic lymph nodes in papillary thyroid carcinoma.

Elasticity indices	Cut-off (kPa)	AUC	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	Accuracy (%)	PLR	NLR	Diagnostic odds ratio (95% CI)
	23.0	0.941	66.7	96.8	88.9	88.2	88.4	20.67	0.34	60.0 (5.9–614.2)
	11.7	0.698	50.0	87.1	60.0	81.8	76.7	3.87	0.57	6.8 (1.4–31.6)
	37.5	0.933	83.3	96.8	90.9	93.8	93.0	25.83	0.17	150.0 (12.3–1836.3)
	6.9	0.769	58.3	96.8	87.5	85.7	86.0	18.08	0.43	42.0 (4.2–418.6)

kPa: kilopascal; AUC: area under the ROC curves; CI: confidence intervals; PPV: positive predictive value; NPV: negative predictive value; PLR: positive likelihood ratio; NLR: negative likelihood ratio; : mean elasticity index; : minimum elasticity index; : maximum elasticity index.