Ultrasound-Guided Percutaneous Microwave Ablation for Solid Benign Thyroid Nodules: Comparison of MWA versus Control Group

Table 2

Outcomes of the microwave ablation for thyroid nodules.

	Nodule volume (ml)						Cosmetic scores		Clinical symptoms
	Baseline	1 month	3 months	6 months	9 months	12 months	Before	12 m (after)	Before	12 m (after)
Control	5.34 ± 3.88	—	5.18 ± 3.13	5.64 ± 3.86	6.35 ± 4.82	6.50 ± 4.36^a	3.07 ± 0.61	2.92 ± 0.83	4.35 ± 1.27	4.07 ± 1.20
MWA	6.61 ± 4.65	4.03 ± 3.30	2.48 ± 2.27^b	1.94 ± 1.73^b	1.33 ± 1.45^b	0.87 ± 0.99^b	2.81 ± 0.71	1.11 ± 0.31^b	3.81 ± 1.99	0.96 ± 0.82^b
value	0.229	—	0.001	<0.001	<0.001	<0.001	0.209	<0.001	0.206	<0.001

Mean volumes as mean ± standard deviation. ^a, variate was compared with baseline in control group. ^b, variate was compared with baseline in the MWA group.