3.0T MRA对椎基底动脉开窗畸形的诊断价值  

3. 0T MRA evaluation in fenestration of the intra and extracranial artery

作　　者：文永霞 王静 李建红 马艳茹 刘彩云 

机构地区：[1]宁夏第三人民医院神经内科,宁夏银川750011

出　　处：《中风与神经疾病杂志》2016年第2期120-122,共3页Journal of Apoplexy and Nervous Diseases

摘　　要：目的探讨3.0T MRI三维时间飞跃法(3D TOF)或增强磁共振血管造影(CEMRA)对头颈部动脉开窗畸形的诊断价值。方法搜集2012年10月-2014年8月行头颈部3.0T MRI(3D TOF)或CEMRA检查的患者资料371例,原始和减影图像经工作站后处理,得到容积重组(VR)、最大密度投影(MIP)、薄层最大密度投影多平面或曲面重组(thin slice MIP,TSMIP),比较各组图像对血管异常的显示情况。结果 371例中,头颈部动脉开窗畸形18例(检出率4.9%,18/371),位于基底动脉11例(检出率3.0%,11/371),其中10例位于基底动脉起始处,1例位于基底动脉干;位于椎动脉入颅底段3例(检出率0.8%,3/371);位于右侧大脑前动脉A1段1例;位于前交通动脉1例;位于大脑中动脉2例。18例中,3例(16.7%,3/18)椎基底动脉开窗畸形合并动脉瘤。结论 CEMRA或3D TOFMRA能清楚显示和诊断头颈部动脉开窗畸形这一少见血管异常。Objective To discuss the value of 3. 0T magnetic resonance angiography（ MRA） in diagnosis of fenestration in intra and extracranial artery. Methods Between October 2010 and August 2012,three dimensional contrast enhanced（ CEMRA） or three dimensional time of flight（ 3D TOF） MR angiographies of 371 head and carotid arteries were collected. The reconstructed images were then processed into volume rending（ VR）,maximal intensity projection（ MIP） and thin slicemultiplane reconstruction（ TSMIP）. And the different images were compared. Results 18（ 4. 9%,18 /371） fenestrations of intra and extracranial artery were detected. In 18 fenestrations,11（ 3. 0%,11 /371） fenestrations were located in basilar atrety： 10 fenestrations were located in proximal portion of basilar artery trunk,1 fenestration was present at basilar artery trunk; 3 fenestrations were present at vertebrobasilar junction; 1 fenestration was located in anterior cerebral artery; 1fenestrationwas located in anterior communicating artery; 2 fenestrations were located in middle cerebral artery. 3（ 16. 7%,3 /18） of these fenestrations were associated with cerebral intracranial aneurysms. Conclusion CEMRA and 3D TOFMRA can clearly detect intra and extracranial artery fenestrations.

关 键 词：磁共振血管造影术 开窗 头颈部动脉 椎动脉 基底动脉 

分 类 号：R743.4[医药卫生—神经病学与精神病学]