J Korean Radiol Soc.  2005 Jun;52(6):379-384. 10.3348/jkrs.2005.52.6.379.

Percutaneous Radiofrequency Ablation for Benign Nodules of the Thyroid Gland

Affiliations
  • 1Daerim St. Mary's Hospital Department of Radiology, Korea. radbaek@naver.com
  • 2Hanyang University Hospital Department of Radiology, Korea.
  • 3Daerim St. Mary's Hospital Department of Pathology, Korea.

Abstract

PURPOSE: We wanted to evaluate the efficacy and safety of using ultrasound guided percutaneous radiofrequency ablation for the benign nodules of the thyroid gland.
MATERIALS AND METHODS
We studied 148 patients with benign thyroid nodules (200 total nodules) that were confirmed histopathologically, and we performed ultrasound guided radiofrequency ablation. The radiofrequency ablation was done 1 to 5 times per one nodule, and follow-up ultrasonography was performed one to nineteen months after the ablation procedures. The physical changes and the decrease of volume of the nodules were evaluated, and the complications related to radiofrequency ablation were observed.
RESULTS
The mean initial nodule volume was 0.01-95.61 ml (mean; 6.83+/-SD of 10.63 ml) and the nodule volume after radiofrequency ablation was decreased to 0.00-46.56 ml (mean; 1.83+/-SD of 4.69 ml). The mean volume reduction rate was 73.2%. Reduction of more than 50% was noted in 90% of all cases. For 180 nodules (90%), the decrease was 50% or more, in 20 nodules (10%), the decrease was 49% or less. On gray-scale ultrasonogram obtained after ablation, the echogenicity of the nodules changed to darker, and on the doppler-sonogram, the vascular flow within the nodules disappeared in all cases. Most patients complained pain during or right after the procedure, but the pain was transient and subsided after medication. Two patients developed hoarseness that was improved in 1 week and 2 months, respectively.
CONCLUSION
Sonoguided percutaneous radiofrequency ablation can be one of the treatments for benign nodules of the thyroid gland.

Keyword

Thyroid; Radiofrequency ablation

MeSH Terms

Catheter Ablation*
Follow-Up Studies
Hoarseness
Humans
Thyroid Gland*
Thyroid Nodule
Ultrasonography
Full Text Links
  • JKRS
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
    DB Error: unknown error