等密度硬膜下血肿的CT表现  

CT Manifestations of Isodense Subdural Hematoma

作　　者：王学成[1] 覃静[2] 

机构地区：[1]成都市新都区第二人民医院放射科,610501 [2]广西壮族自治区骨伤医院CT室,南宁市530012

出　　处：《现代医用影像学》2006年第3期128-129,共2页Modern Medical Imageology

摘　　要：目的:提高对等密度硬膜下血肿(ISH)CT征象认识。材料与方法:分析经手术证实26例等密度硬膜下血肿的CT表现。结果:26例等密度硬膜下血肿均位于颅骨内板下与皮质表面间,密度均匀与内侧脑灰质相近、边缘不清的新月形影;灰白质界面内移,脑沟消失,邻近脑池闭塞,同侧脑室变窄。20例单侧等密度硬膜下血肿病例中线结构不同程度向对侧偏移。6例双侧等密度硬膜下血肿病例中线结构未见明显偏移,增强扫描血肿不强化,与强化的脑皮质表面分界清楚。结论:ISH的CT征象有其特点,对临床诊断有重要价值。Purpose： To improve the knowledge of the CT findings of isodense subdural hematoma （ISH）. Materials and Methods ： Studied CT findings of the 26 cases with ISH which were prove after surgery. Results： All the lesions between the inner margin of the skull and the brain surface; Were detected as crescent; They and the cerebral cortex had same- shaped and unclear border; The margin between the gray and white matter of the brain moved from inner; Narrowed ventricle, The sulci cerebri and cistem were not found. Displaced middle strueture in 20 cases, 6 cases were examined by CT contrast- enhanced, but the lesions were not enhanced, Clear border between the lesions and the brain surface. Conclusion： CT manifestation of ISH have some features, and can provide reliable evidence for clinic diagnosis of ISH.

关 键 词：硬膜下血肿 体层摄影 X线计算机 

分 类 号：R816.1[医药卫生—放射医学]