Fig. 1

The flowchart for recruiting patients. FTC, Follicular thyroid carcinoma; FTA, Follicular thyroid adenoma; CEUS, Contrast-enhanced ultrasound; B-US, B-mode ultrasound
The flowchart for recruiting patients. FTC, Follicular thyroid carcinoma; FTA, Follicular thyroid adenoma; CEUS, Contrast-enhanced ultrasound; B-US, B-mode ultrasound