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Table 1 Volume reduction of thyroid nodules after RFA

From: Effect of ultrasound parameters of benign thyroid nodules on radiofrequency ablation efficacy

Variable

Follow-up

Median

Mean

 ± SD

Min

Max

Marginal changea

Volume Reduction (VR)

1-month

12

17.67

19.5

0

110

17.67

3-month

18

24.57

23.9

1.2

125

6.9

6-month

19.95

27.80

27.2

1.2

159

3.23

12-month

19.95

27.87

27.1

1.2

159

0.07

Volume Reduction Ratio (VRR)

1-month

36.18

38.75

18.6

0

89.2

38.75

3-month

54.24

53.65

18.1

7.5

100

14.9

6-month

61.01

59.38

17.6

20

100

5.73

12-month

61.36

59.91

18.2

20

100

0.53

  1. aIndicates the mean volume change from the previous measurement/follow-up