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Table 4 Diagnostic performance of gray-scale ultrasound and combination method

From: Shear wave elastography in the evaluation of level VI lymph nodes in papillary thyroid carcinoma: combined with gray-scale ultrasound ex vivo

  Methods Best cutoff value Sensitivity (%) Specificity (%) AUC
All patients Gray-scale ultrasound 1.5 52.9 98.6 0.841
Combination method 1.5 82.4 77.1 0.887
Patients without Hashimoto’s thyroiditis Gray-scale ultrasound 0.5 88.2 67.9 0.866
Combination method 1.5 94.1 76.8 0.925