摘要
目的探讨1.5T MR引导下射频消融(RFA)治疗肝转移癌的可行性。方法收集34例肝转移癌患者,采用MR兼容多极射频针,于1.5T MR引导下行RFA。术后1个月行1.5T或3.0T肝脏MR平扫+动态增强扫描,之后每2～3个月复查1次;随访3～37个月,平均(14.33±9.81)个月。结果 34例患者共消融98个病灶,其中完全消融86个(86/98,87.76%),不完全消融12个(12/98,12.24%)。MRI上射频电极针呈低信号。T2WI中消融灶呈低信号,周围可见薄层高信号环绕;T1WI中消融灶呈环样高信号,中央瘤灶呈相对低信号。结论 1.5T MR引导下RFA治疗肝转移癌安全、有效,具有一定临床应用价值。
Objective To explore the feasibility of 1.5T MR-guided radio-frequency ablation （RFA） for the treatment of metastatic carcinoma in liver. Methods Totally 34 patients with metastatic lesions in liver were treated with 1.5T MR- guided RFA using MR compatible multipolar RF electrode. One month after operation, plain scan and dynamic enhanced scan for liver were performed using 1.5T or 3.0T MR, then re-examination was done every 2-3 months during following- up period （3-37 months, mean [14. 33±9.81]months）. Results Totally 98 lesions were ablated in 34 patients. Complete response （CR） was found in 86 lesions （86/98, 87.76%）, and incomplete response （ICR） in 12 lesions （12/98, 12.24%）. Radio-frequency electrodes appeared as low signals in the images. The ablated lesions showed as hypo-intensity with thin rim of high signal intensity in T2WI and ring-shaped hyper-intensity in TlWI, while the central tumor zone ap- peared relative hypo-intensity. Conclusion 1.5T MR-guided RFA is an effective and safe technique, and has some clinical application value for the treatment of metastatic liver carcinoma.
出处
《中国介入影像与治疗学》
CSCD
2012年第12期839-842,共4页
Chinese Journal of Interventional Imaging and Therapy
基金
福建省医学创新课题(2009-CXB-20)
福建省自然科学基金(2012J01337)
关键词
磁共振成像
肝脏
肿瘤转移
消融技术
Magnetic resonance imaging
Liver
Neoplasm metastasis
Ablation techniques
