CT血管造影在颅内血管性病变中的诊断价值

目的 :探讨CT血管造影 (CTA)在颅内血管性病变中的诊断价值。方法 :采用simens -plusSCT机行头颅螺旋CT扫描 ,原始图像用最大强度投影法 (MIP)和表面阴影成像法 (SSD)进行计算机三维图像重建。结果 :11例患者中 ,显示动脉瘤 4例 ,动脉瘤合并AVM 1例 ,AVM 2例 ,大脑中动脉闭塞 1例 ,未见异常 3例。CTA能显示颅内血管性病变和部位和性质。对动脉瘤瘤体、瘤蒂的大小和与周围结构的关系 ,AVM的供血动脉、畸形血管大小及形态、回流静脉均可清晰显示。结论 :CTA是一种安全、快速、简便的检查方法 ,对颅内血管性病变具有较大的诊断价值 ,尤其适用于SAH和自发性脑出血患者急性期的病因筛选检查

Diagnostic value of computed tomographic angiography for intracranial vascular lesions

Objective:To evaluate the value of diagnosis of computed tomographic angiograhy(CTA) for intracranial vascular lesions Methods:The axial source CT images were obtained using Siemens-plus CT scaning CTA was performed with technique of maximum intensity projection(MIP),and shaded surface display(SSD) Results:Among 11 cases,there were 4 intracranial aneurysms,laneurysm associated with vascular malformation,2 AVM,1 occlusion of middle cerebral artery,3 normal CTA provided valuable information about the configuration、size、shape and orientation of intracranial vascular lesion,and reveale the relationship of the lesion to other cerebrovascular or skeletal structures,Conclusions:CTA was a quick、reliable and relatively simple diagnostic tool for diagnosis of intracranial vascular lesion,especially for emergency situation of SAH and intracerebral hemorrhage