胃癌患者放射性肝损伤的CT表现  

CT Features of Radiation-induced Liver Injury in Patients with Gastric Cancer

作　　者：沈亚琪[1] 胡道予[1] 王秋霞[1] 李震[1] 郑楠楠[1] 裴贻刚[1] 陈亮[1] 

机构地区：[1]华中科技大学附属同济医院放射科,武汉430030

出　　处：《放射学实践》2010年第2期178-181,共4页Radiologic Practice

摘　　要：目的:分析胃癌患者放射性肝损伤的CT表现。方法:回顾分析52例行三维适形放射的胃癌患者随访CT平扫和动态增强资料。结果:52例患者18例CT上观察到肝放射性反应,其中8例在第2次复查时受累区域较前缩小,且在门脉期由第1次随访时低密度转变成等密度,其CT增强方式发生改变,3例在第3次随访时完全恢复。结论:放射性肝损伤增强CT表现为放疗结束后1个月后出现,平扫及增强各期为低密度不增强表现,2个月开始出现门脉期或延迟增强表现且受影响区域减小,无肝基础病放射性肝损伤在随访9～11个月时可完全恢复。Objective：To analyze the computed tomography （CT） findings of radiation-induced liver injury in patients with gastric cancer. Methods：A retrospective review of the CT data was conducted in 52 patients treated with three-dimen sional conformal radiotherapy （3D CRT） for gastric cancer. All patients received nonenhanced CT scan and tri-phasic contrast-enhanced CT scan. Results：Eighteen of 52 patients were found to have a focal radiation reaction in the liver. The enhanced partern of liver caused changes in eight patients on their second follow up, and the region of radiation reaction in the liver was smaller than the first follow up. And the focal radiation reaction totally vanished in three patients on their third follow up. Conclusion：The CT fingdings of radiation-induced liver injury correlated with gastric cancer usually showed up one month later when they finished the radiation treatment. There was no enhancement on all scans, then it became enhanced on portal venous phase or delay phase. The focal radiation reaction of the liver without basic disease can vanish after 9-11 months.

关 键 词：放射疗法 适形 体层摄影术 X线计算机 胃肿瘤 

分 类 号：R818[医药卫生—放射医学] R735.2[医药卫生—临床医学]