Ultrasonography-guided ethanol ablation of predominantly solid thyroid nodules: a preliminary study for factors that predict the outcome

作者：Dong Wook Kim, Myung Ho Rho, H-J. Park, Hyon‐Joo Kwag · 发表于：British Journal of Radiology · 年份：2012 · DOI：10.1259/bjr/81849588 · 被引用次数：34 · 研究领域：Thyroid Cancer Diagnosis and Treatment、Thyroid and Parathyroid Surgery、Thyroid Disorders and Treatments

OBJECTIVES: The aim of this study was to evaluate the success rate in ultrasonography-guided ethanol ablation (EA) of benign, predominantly solid thyroid nodules and to assess the value of colour Doppler ultrasonography in prediction of its success. METHODS: From January 2008 to June 2009, 30 predominantly solid thyroid nodules in 27 patients were enrolled. Differences in the success rate of EA were assessed according to nodule vascularity, nodule size, ratio of cystic component, amount of injected ethanol, degree of intranodular echo-staining just after ethanol injection and the number of EA sessions. RESULTS: On follow-up ultrasonography after EA for treatment of thyroid nodules, 16 nodules showed an excellent response (90% or greater decrease in volume) and 2 nodules showed a good response (50-90% decrease in volume) on follow-up ultrasonography. However, 5 nodules showed an incomplete response (10-50% decrease in volume) and 7 nodules showed a poor response (10% or less decrease in volume). Statistical analysis revealed a significant association of nodule vascularity (p=0.002) and degree of intranodular echo-staining just after ethanol injection (p=0.003) with a successful outcome; however, no such association was observed with regard to nodule size, ratio of cystic component, amount of infused ethanol and the number of EA sessions. No serious complications were observed during or after EA. CONCLUSION: The success rate of EA was 60%, and nodule vascularity and intranodula...