Table 3.

Results of blood flow feature statistics of thyroid nodules

	Messy	Central	Peripheral	Focal	No blood flow
No. of malignant nodules (n = 75)	45	6	13	0	11
No. of benign nodules (n = 78)	26	0	20	2	30
Malignant rate (%)	64.3	100	40.3	0	27.6
Benign rate (%)	35.7	0	59.7	100	72.4