From: Roles of contrast-enhanced ultrasonography in identifying volume change of benign thyroid nodule and optical time of secondary radiofrequency ablation
Time after RFA
Accumulated cases showing regrowth
Rate
P
Kappa
1 month
9
20.93%
0.000
0.013
3 month
20
46.51%
0.041
6 month
25
58.14%
0.064
12 month
41
95.35%
1.000
0.656
24 month
42
97.67%
36 month
43
100.00%