等密度硬膜下血肿的CT诊断

CT Diagnosis of lsodensity subdura Hematoma

目的:提高对等密度硬膜下血肿的认识。方法:对21例CT诊断为等密度硬膜下血肿进行回顾性分析。结果:18例等密度硬膜下血肿术前CT诊断正确,3例经临床证实。结论:等密度硬膜下血肿与血肿存在的时间、蛛网膜破裂、脑脊液进入血肿及贫血等因素有关;其间接征象在等密度硬膜下血肿CT诊断中起着重要作用。

Objective To improve under standing to isodense subdural hematomas.Methods 21 patients were diagnosed as isodense subdural hematomas and were reviewed. Results 18 patients were diagnosed correctly by computed tomography bofore operation.3 patients were confirmed by clinical. Conclusion lsodense subdural hematomas ralate with living time of hematoma, breaking of cranial arachnoid, cerebrospinal fluid goes into hematoma and anaemia, etc.Its indirect signs play an important role to diagnosis of isodense subdural hematomas by computed tomography.