[Retracted] The Application Value of SMI Technology and Contrast-Enhanced Ultrasound in the Differential Diagnosis of Benign and Malignant Thyroid Nodules

Table 1

Ultrasonography results of SMI nodules.

ACR TI-RADS classification	Benign	Malignant	Predicted malignancy rate	Actual malignancy rate (%)
TR3	4	3	<20%	15
TR4	4	3	<20%	15
TR5	2	4	>30%	40

Note. ACR TI-RADS, American Society of Radiology Thyroid Imaging Report and Data System.