中脑周围非动脉瘤性蛛网膜下腔出血的危险因素及影像学特点分析  

The Risk Factors and Imaging Features of Perimesencephalic Nonaneurysmal Subarachnoid Hemorrhage

作　　者：杨秋云 石安斌 翟建春 黄承顺 吴继雄 陈佳佳 

机构地区：[1]中信惠州医院医学影像中心,广东惠州516006

出　　处：《中国CT和MRI杂志》2017年第3期16-18,共3页Chinese Journal of CT and MRI

摘　　要：目的分析中脑周围非动脉瘤性蛛网膜下腔出血(PNSH)的病因、发病特点、危险因素及影像学特点。方法回顾性分析我院2012年1月-2015年1月收治的11例PNSH患者的临床资料,患者均有中脑周围池出血CT表现,且DSA、CTA阴性,总结其临床特点、危险因素及影像学特点。结果本组11例患者在发病72h内作头颅CT扫查均证实为蛛网膜下腔出血,出血中心多于脑干前部脑池,以中脑前方脚间池为主,其中2例位脚池,1例位于桥前池,7例位于脚间池,1例侧脑室枕角集血,均未见脑内血肿。1-2周后复查可见SAH基本吸收,其中2例脑室逐渐扩大,但无特殊症状。结论 PNSH属于良性疾病范畴,患者症状较轻,CT表现特殊,可区别于动脉瘤性ASH,同时高血压、吸烟为影响PNSH发病的相关危险因素。Objective To analyze the causes, clinical characteristics, risk fctors and imaging features of perimesencephalic nonaneurysmal snbarachnoid hemorrhage （PNSH）. Methods The clinical data of 11 patients with PNSH treated were analyzed retrospectively in our hospital from January 2012 to January 2015. All the patients had CT manifestations of perimesencephalic cistern hemorrhage,with DSA and CTA were negative. The clinical features, risk factors and imaging features were summarized. Results cases were confirmed as subarachnoid hemorrhage by skull CT scan in onset 72h in this group. The hemorrhage center mostly located in anterior brain stem cisterns and anterior midbrain interpeduncular cisterns were the majority, including 2 cases in of crural cistern, 1 case in prepontile cistern, 7 cases in interpeduncular cistern and 1 case of lateral ventricle occipital hematocele, without visible intracerebral hematoma. 1～2 weeks later, the reexamination showed that SAH was basically absorbed, in which 2 cases of ventricle were gradnally expanded, without special symptoms. Conclusion PNSH belongs to the category of benign diseases. The symptoms of the patients are mild and the CT findings are special, which can be used to discrinfinate ASH, and hypertension and smoking are the risk factors influencing inset of PNSH.

关 键 词：中脑周围非动脉瘤蛛网膜下腔出血 特点 影像学 

分 类 号：R445.3[医药卫生—影像医学与核医学] R743[医药卫生—诊断学]