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. 2012 Aug 29;7(8):e42735. doi: 10.1371/journal.pone.0042735

Figure 3. Receiver-operating characteristic (ROC) curves for ARFI-imaging of thyroid nodule (ARFI-nod) and for the ratio of ARFI-imaging of thyroid nodule divided by ARFI-imaging of healthy thyroid tissue (ARFI-rat) for diagnosis of malignant thyroid nodules (AUROC 69% and 71%, respectively) and the ROC curves for the combination of these criteria with Realtime Elastography Score (ES) 3–4 (AUROC 78% and 78%, respectively).

Figure 3

The improvements with respect to ARFI alone were not significant (p = 0.18 for ARFI-nod, p>0.20 for ARFI-rat), analogously the improvements with respect to ES alone were not significant (p>0.20 in both cases).