[Retracted] Benefits of Contrast-Enhanced Ultrasonography to the Differential Diagnosis of TI-RADS 4-5 Thyroid Nodules

Table 3

Ultrasonographic characteristics of thyroid nodules (ECUS) [].

ECUS		Benign ()	Malignant ()
Enhancement degree	Hyperenhancement	8 (33.33)	1 (3.03)	23.749	<0.001
	Isoenhancement	13 (54.17)	7 (21.21)
	Hypoenhancement	3 (12.50)	24 (72.73)
	No enhancement	0 (0.00)	1 (3.03)
Enhanced border	Clear	17 (70.83)	11 (33.33)	7.818	0.005
	Partially clear or unclear	7 (29.17)	22 (66.67)
Perfusion pattern	Centripetal	7 (29.17)	8 (24.24)	3.822	0.148
	Centrifugal	8 (33.33)	19 (57.58)
	Pleiotropic	9 (37.50)	6 (18.18)
Enhancement pattern	Homogeneous	10 (41.67)	6 (18.18)	20.280	<0.001
	Heterogeneous	2 (8.33)	21 (63.64)
	Annular	7 (29.17)	1 (3.03)
	Nodular	5 (20.83)	5 (15.15)