肝癌氩氦刀冷冻和射频治疗的CT探讨  

CT evaluation on the patients with hepatic carcinoma treated with Ar-He cryoablation or RF

作　　者：吕毛古[1] 黄伟[1] 吴建伟[1] 汪栋[1] 曾勇[1] 赵颖[1] 

机构地区：[1]解放军第八一医院影像科,南京210002

出　　处：《临床肿瘤学杂志》2005年第5期469-473,共5页Chinese Clinical Oncology

摘　　要：目的分析氩氦刀冷冻和射频治疗肝脏恶性肿瘤的CT表现,探讨其与疗效的关系。方法选择1999年11月～2002年10月用氩氦刀和射频治疗的肝癌共36例,其中原发性肝癌29例,转移性肝癌7例,分为氩氦刀组11例,射频治疗组25例。氩氦刀术后即刻CT扫描和两种方法术后1～2周开始复查CT。结果氩氦刀冷冻治疗出现典型“冰球”CT表现者达70%以上,继续复查局部保持低密度、增强扫描无强化;射频治疗后近期复查近半数可见类圆形较低密度及周围环状更低密度区,无强化效应。结论氩氦刀冷冻治疗出现大于原病灶区的典型“冰球”CT表现者,疗效较佳,原发性肝癌AFP下降率可达95%以上;射频治疗后出现类圆形较低密度区及周围大于原病灶的环状更低密度影,提示疗效好,其原发性肝癌AFP下降比例明显提高。以上两种疗法对直径小于5cm的肝癌均有较好的疗效,尤其对直径小于3cm的小肝癌疗效更佳。对原发性肝癌和转移性肝癌的疗效无明显差异。Objective：To study the characteristics of CT image of the patients with hepatic carcinoma treated with Ar-He cryoablation or RF and assess the relationship between the treatment and the efficacy. Methods：36 cases of hepatic carcinoma, including 29 cases of primary hepatic carcinoma and 7 cases of metastatic hepatic carcinoma, were enrolled in this study from November, 1999 to October, 2002. CT scanning was performed immediately after the treatment and began to recheck 1-2 weeks later. Results：The characteristics of CT image of those patients who received Ar-He cryoablation regimen is a classical “ice ball” and the occurrence rate is more than 70%. The following-up scanning shows that the density of the local lesion is low and without any intensified effect. The CT image of patients who received RF regimen shows that low density umbrella and much lower density umbrella occurred at the lesion and the surrounding. Conclusion：Those patients who showed “ice ball” or low density image on the CT scanning have a better response. There is no significant difference between the primary and metastatic hepatic carcinoma.

关 键 词：肝肿瘤 射频治疗 氩氦刀冷冻 CT图像 

分 类 号：R730.58[医药卫生—肿瘤] R730.44[医药卫生—临床医学]