多层螺旋CT脑血管成像在颅脑血管病变的临床应用

Clinical application of multi-slice spiral CT angiography in intracranial vascular disease

目的探讨多层螺旋CT（MSCT）脑血管成像的临床应用价值。方法回顾性分析40例颅内血管性病变患者的16层螺旋CT脑血管成像（CTA）资料，其中动脉狭窄14例，动脉闭塞2例，动脉瘤9例，动静脉畸形12例，静脉畸形1例，烟雾病1例，颈动脉海绵窦瘘1例。结果多层螺旋CT脑血管成像（CTA）对脑血管主干及其主要分支均可显示，其中大脑前、中动脉清晰显示5级分支。动脉狭窄14例，CTA均清晰显示狭窄部位及动脉粥样硬化斑块。动脉闭塞2例，CTA清楚显示中断部位、形态、范围。脑动脉瘤9例，CTA均清晰显示动脉瘤位置、大小、形态、瘤颈与其及载瘤动脉关系。动静脉畸形12例，CTA均清晰显示畸形血管团、供血动脉和引流静脉。静脉畸形1例可显示左顶叶静脉畸形。烟雾病1例，CTA显示各动脉的闭塞部位及侧支血管团形态。40例患者中，5例动静脉畸形及1例烟雾病经数字减影血管成像证实，6例动脉瘤及4例动静脉畸形经手术证实。结论CTA是一种快速、无创、有效的脑血管病变诊断手段，对临床治疗有指导作用。

Objective To evaluate the clinical value of multi-slice spiral CT angiography （CTA） in intracranial vascular disease. Methods Image data of 40 fracture cases were received with muhi-slice spiral CT angiography, including arterial stenosis （ n = 14） , arterial occlusion （ n = 2 ） , aneurysm （ n = 9 ） , arteriovenousmalformation（ n = 12） , venous malformation（ n = 1 ） , moyamoya disease（ n = 1 ） and carotid cavernous fistula（ n = 1 ）. Results CTA provided vivid images of intranial vessels and provided useful information of the site, shape, size and the origin of abnormal vascularity. Conclusion Multi-slice spiral CT angiography is a rapid, noninvasive and valid method for detecting intracranial vascular disease. CTA can also provide necessary information for surgical procedures.