Differential Diagnosis of Parotid Gland Tumors: Role of Shear Wave Elastography

Figure 2

Five different models characterized by ROC curves were built to predict malignancy. All models were calculated as logistic regression classifiers. The bottom thin line corresponds to CSV as a single predictor (see the text for details). The thick line uses tumor delineation (blurred margin) as the only predictor. The dotted lines combine 3 US predictors, that is, tumor delineation, homogeneous echogenicity, and calcification presence. The dashed line combines these three US predictors with age ≥ 65, and the top thick line adds CSV parameter to these.