摘要
目的评价DSA与3D-CTA在诊断颅内动脉瘤方面的优缺点。方法26例自发性蛛网膜下腔出血患者,24例接受了DSA与3D-CTA检查,另2例在出血后2￣4h内仅行CTA检查。DSA检查的时相为出血后12￣30d;3D-CTA检查的时相为出血后2h￣30d。分析DSA、3D-CTA与术中显微镜下所见动脉瘤的大小、部位、瘤颈、瘤体指向及周边重要穿支血管的吻合程度。结果26例自发性蛛网膜下腔出血患者共发现34个颅内动脉瘤,其中行DSA检查的24例患者中共发现28个动脉瘤,检出率约82%,而3D-CTA发现32个动脉瘤,检出率94%;2例出血后数小时内3D-CTA检查发现2个动脉瘤。以上动脉瘤均经手术证实,CTA在动脉瘤大小、瘤颈宽度上与术中实际情况吻合程度更高。结论DSA是诊断颅内动脉率的金指标,但有一定的假阴性率;3D-CTA无创、经济、不受血管痉挛的影响,对直径3mm以上的动脉瘤的检出率可能优于DSA,对动脉瘤的部位、瘤颈、瘤体、载瘤动脉及周边结构的三维显示更有助于制定手术方案。
[Objective] To evaluate the clinical accuracy of DSA and 3D-CTA（three diamensinal CT angiography） in diagnostic and treatment intracranial aneurysms. [Methods] 24 patients suspected with intracranial aneurysms underwent DSA and 3D-CTA, the other patients only underwent 3D-CTA. [Results] 26 patients sus- pected with 34 intraeranial aneurysms, 28 aneurysms were detected DSA and 32 aneurysms were detected by 3D- CTA meanwhile, another 2 aneurysms only were detected by 3D-CTA. A total of 34 aneurysms underwent surgical treatment. [Conclusions] Although DSA still is the gold standard to diagnose the aneurysms, but 3D-CTA enables the surgeon to understand the 3D structure of intraeranial aneurysms and is very useful in planning the surgical treatment on aneurysms.
出处
《中国现代医学杂志》
CAS
CSCD
北大核心
2006年第15期2358-2360,共3页
China Journal of Modern Medicine
