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目的观察颅内肿瘤放射治疗后放射性脑病(REP)的临床和影像学表现并探讨其诊断价值和方法。方法对19例具有临床表现、影像学表现、手术和病理证实的颅内肿瘤放射治疗后REP患者的临床和影像学资料进行回顾性分析。结果REP临床表现多样,以颞叶多见,可累及额顶叶及脑干,MR I表现为指样水肿或囊变,呈长T1长T2信号,CT表现为指样或囊状低密度灶,增强后呈脑回样或不规则形强化。结论REP的MR I及CT表现具有一定的特征性,诊断价值较大。
Objective To observe the clinical and radiological findings of radiation-induced brain encephalopathy (REP) after intracranial tumor radiotherapy and to explore its diagnostic value and method. Methods The clinical and imaging data of 19 patients with REP after radiotherapy for intracranial tumors with clinical manifestations, radiological findings, surgical findings and pathological findings were retrospectively analyzed. Results The clinical manifestations of REP varied. The temporal lobe was more common, which could involve the frontal lobe and the brainstem. The MR I manifested as finger-like edema or cystic change with long T1 long T2 signal. The CT showed as finger-like or cystic low-density lesions , Enhanced after the brain-like or irregular shape enhancement. Conclusion The MR and CT findings of REP have certain characteristics and great diagnostic value.