移动消融技术在微波消融治疗甲状腺良性结节中的应用价值

目的研究移动消融技术在超声引导下微波消融治疗甲状腺良性结节中的应用价值。方法选取2010年11月-2013年12月在我科行超声引导下微波消融治疗的甲状腺良性结节患者61例共72个结节，结节平均直径3．0±1．4cm。按照消融方式分为固定针消融组（n=39）和移动消融组（n=33），比较两组消融手术参数、消融范围及缩小率的差异。结果移动消融组消融单位体积用时较固定消融组短（P〈0．01），完全消融率高于固定消融组（P=0．044）。随访1～12个月移动消融组结节各阶段体积缩小率均高于固定消融组，其中3～6个月时差异有统计学意义（P=0．041）。结论移动消融技术疗效确切，见效快，较固定消融技术对甲状腺良性病变治疗的效率高，且消融范围更适形、更完全。

Application value of moving-shot technique in the treatment of microwave ablation for thyroid nodules

Objective To assess the application value of moving-shot technique in the treatment of ultrasound-guided microwave ablation （MWA） for thyroid lesions. Methods A total of 61 patients （mean age, 48.1 ＋ 11.4 years） with 72 benign thyroid nodules （mean diameter, 3.0 ＋ 1.4 cm） were treated with MWA in our department from November 2010 to December 2013. Nodules were divided into fixed-needle technique group （group F, n=39） and moving-shot technique group （group M, n=33）. The difference of ablation parameters, ablation range and volume-reduction ratio （VRR） of two groups were compared. Results Exposure time in group M were shorter than that in group F （P 〈 0.01）. Complete ablation rate in group M were higher than that in group F （P=0.044）. During the follow-up period ranging from 1 to 12 months, effect of group M were better than group F with higher mean VRR in every section of follow-up period. The difference in the section of ＇3-6 months＇ was statistically significant （P=0.041）. Conclusion Moving-shot technique is not only a method to improve the efficiency of MWA, but also an easy way to make more appropriate shape for complete ablation, which will become more suitable for ultrasound-guided MWA therapy in thyroid nodules.