慢性扩展性脑内血肿MRI诊断

MRI Diagnosis of Chronic Expanding Intracerebral Hematoma

目的探讨慢性扩展性脑内血肿(chronic expanding intracerebral hematoma,CEICH)的MRI表现。方法回顾性分析5例经手术及病理证实的CEICH患者的MRI资料。结果 5例中,3例为动静脉畸形,2例为小海绵状血管瘤,包膜内有不同时期的血肿;T2WI、磁敏感加权成像(SWI)、扩散加权成像(DWI)分别可见高低信号形成的液-液平面,完整光滑的囊壁,囊壁内外的流空血管影;增强扫描示邻近脑质点状异常强化影;周围脑实质轻度脑水肿。结论 CEICH的MRI表现具有一定特点,结合增强扫描、SWI、DWI,可以提高其诊断水平。

Objective To analyze the MRI findings of the chronic expanding intracerebral hematoma.Methods The MRI findings of chronic expanding intracerebral hematoma confirmed by surgery and pathology in 5 patients were retrospectively analyzed.Results In this group of cases,3 cases were arteriovenous malformation,2 cases were cavernous hemangioma,with different periods of hematoma in peplos.On T2WI、SWI、DWI level signal formed by liquid-liquid flat,smooth wall,wall and vascular signal void artifact were visible.On enhancement scanning,near the brain point-abnormal strengthened shadow were visible;with mild brain edema in the surrounding brain parenchymaa.Conclusion Characteristic MRI findings could be revealed in chronic expanding intracerebral hematoma.When combined with enhanced scanning,SWI,DWI,the diagnostic accuracy maybe improved.