【摘要】 目的:探讨多层螺旋CT(MSCT)对椎基底动脉延长扩张症(VBD)的诊断价值。方法:对照Smoker标准分析16例VBD的MSCT表现。结果:16例椎VBD中,基底动脉延长与偏移均为2级的12例、3级的4例;基底动脉最大径4.5～7.9 mm,平均(5.07±0.89) mm;脑干受压7例,三脑室受压4例致脑积水1例,急性脑梗死5例(桥脑1例),脑内出血1例,硬膜下血肿1例。结论:MSCT能显示VBD本身及其与周围组织结构的关系,甚至VBD造成的并发症,是目前有效诊断与动态观察VBD的检查方法之一。更多还原

【Abstract】 Objective: To evaluate the value of multi-slice helical computer tomography( MSCT) in the diagnosis of vertebrobasilar dolichoectasia( VBD).Methods: MSCT presentations were examined in 16 cases of VBD according to Smoker’s diagnostic criteria.Results: Elongation and deviation of basilar ar-tery occurred in 12 cases( grade 2),and in 4( grade 3). The mean maximal diameter of basilar artery was( 5.07± 0.89) mm( ranging from 4.5 to 7.9 mm). Brainstem compression was seen in 7 cases,involvement of three ventricles in 4( 1 complicated with hydrocephalus),acute cerebral infarction in 5( infraction in pons in 1),intracerebral hemorrhage in 1 and subdural hematoma in another 1.Conclusion: MSCT can clearly display the structure of VBDand involvement of the lesions and surrounding tissues,and even the complications associated with VBD,suggesting that MSCT should be the most effec-tive technique for the diagnosis and dynamic observation of VBD.更多还原