磁共振成像诊断脑动静脉畸形初探

通过对１２例经磁共振确诊的脑动静脉畸形患者的临床及磁共振分析，旨在探讨脑动静脉畸形的ＭＲＩ特点及与临床的关系。结果表明：４０岁以下发病最多，病灶多分布于颞顶叶，大畸形较小畸形易再出血。畸形血管团ＭＲＩ表现：多数Ｔ１、Ｔ２加权像为纡曲成团的低或黑信号区（流空效应）。做ＭＲＩ时间宜在畸形破裂后２月。年青患者有头疼及癫痫史尤其有颅内非外伤性出血史者须常规做ＭＲＩ。

PRELIMINARY OBSERVATION OF CEREBRAL ARTERIOVENOUS MALFORMATION BY USING MRI SCAN

The result of 12 cases of cerebral arteriovenous malformations (AVM) which were diagnosed by MRI is reported. It was tried to study the feature of cerebral AVM on MRI and relationship between those feature and clinic. It showed that patients under the age of 40 years old had high opportunity to suffer from cerebral AVM, The disease part was often seen in the temporal and parietal lobe, large malformations were more likely to rehemorrhage than small ones. On the photo of MRI,most of T1 and T2 photos had a lower or black signal area (flow-empty actions). The time for checking by MRI should be two months after the malformation burst. Young man with the history of headache and epliepsy, especially with the history of cerebral hemorrhage caused by uninjury should be checked by MRI.