【摘要】 就肝脏肿瘤放射治疗后肝组织的病理及影像变化予以综述。病理表现以肝静脉阻塞为特征 ,具体分为 4期。影像方面 :核素扫描为示踪剂稀疏 ,B超为低回声 ,CT、MRI表现多样 ,可呈无变化、低密度 (信号 )以及强化表现 ,延迟期强化为其特征 ,这一点有助于与肝癌进行鉴别更多还原

【Abstract】 In this paper,pathological and imaging appearance of post radiated liver parenchyma are reviewed.Pathological change is characterized by veno-occlusion,which includes acute radiation hepatitis phase,hepatic fibrosis prophase,hepatic fibrosis phase and hepatocirrhosis phase.The regions of radiation injury are hypoechoic relative to the reminder of the liver on ultrasound B scans,decreased tracer localization on hepatic scintigraphy,and on CT scan and MR imaging,various patterns appear,which include no-change,low attenuation (signal),and enhancement,but it is characteristic of enhancement in prolonged stage,in which,radiation hepatic injury differs from hepatocelullar carcinoma.更多还原