原发性肝癌靶体积对立体定向放射治疗计划设计的影响分析  

The Analysis of Primary Liver Cancer Target Volume's Effect on the Stereotactic Radiotherapy Treatment Plan

作　　者：钟南保[1] 吕光明[1] 陈忠华[1] 季洪兵[1] 

机构地区：[1]南京军区福州总医院肿瘤放射治疗中心,福建福州350025

出　　处：《中国医学物理学杂志》2011年第2期2489-2490,2528,共3页Chinese Journal of Medical Physics

摘　　要：目的:分析原发性肝癌靶体积对γ射线立体定向放射治疗计划设计的影响。方法:2008.05～2010.03采用γ射线立体定向放射治疗139例原发性肝癌患者,共146个靶区,以计划靶区体积(Vptv)大小分成三组:A组41个,Vptv<150cm3;B组77个,150 cm3≤Vptv<300 cm3;C组28个,Vptv≥300 cm3。比较分析各组立体定向放射治疗计划。结果:146个靶区均50%～90%等剂量线覆盖。靶体积越小,覆盖靶区的等剂量线越高;A组等中心数最少,C组最多,B组次之;A组剂量均匀性最好,B、C无明显差别。结论:靶体积大小影响原发性肝癌立体定向放射治疗计划设计,靶体积越小,所需的等中心数更少,靶区均匀性越好,覆盖靶区的等剂量线越高。Objective: To analyze primary liver cancer target volume s effect on the design of γ-ray stereotactic radiotherapy treatment plan.Methods: From May 2008 to March 2010,139 primary liver cancer patients with 146 targets were treated with γ-ray stereotatic radiotherapy(SRT).The treatment plans were grouped in A,B,C according to the volume of PTV(Vptv),group A: 41 targets,Vptv <150 cm3;group B: 77 targets,150 cm3≤Vptv<300 cm3;group C: 28 targets,Vptv≥300 cm3.The treatment plans of the three groups were an...

关 键 词：治疗计划 立体定向放射治疗 肝癌 

分 类 号：R735.7[医药卫生—肿瘤]