Predictive model for contrast-enhanced ultrasound of the breast: Is it feasible in malignant risk assessment of breast imaging reporting and data system 4 lesions?

Figure 2 Predictive models for contrast-enhanced ultrasound of benign breast lesions. A: Hyper-enhancement, equal size after enhancement, regular shape, without penetrating vessels, adenoma; B: Synchronous wash-in with iso-enhancement, can not distinguish margin and shape after enhancement, without perfusion defect or penetrating vessels, adenosis; C: Slow wash-in with hypo-enhancement, equal size after enhancement, without penetrating vessels, adenosis.