Detection of intracranial aneurysms with two-dimensional and three-dimensional multislice helical computed tomographic angiography
Detection of intracranial aneurysms with two-dimensional and three-dimensional multislice helical computed tomographic angiography
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DOI：
10.1227/01.neu.0000103448.07132.e1
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发表时间：
2004-02-01
期刊：
影响因子：
4.8
通讯作者：
Hernesniemi, J
中科院分区：
文献类型：
--
作者：
Kangasniemi, M;Mäkelä, T;Hernesniemi, J
目的：CT血管造影(CTA)已成为蛛网膜下腔出血后颅内动脉瘤的一种诊断方法。方法：前瞻性地对179例患者行多层螺旋CT血管造影术，然后分别行双侧颈动脉数字减影血管造影(DSA)、单侧颈动脉后循环DSA或单纯后循环DSA检查。结果：经DSA或手术证实的178个动脉瘤中，CTA未能检出7个1~2 mm的动脉瘤，1个部分血栓形成的4 mm的动脉瘤。CTA诊断动脉瘤的敏感度和特异度分别为0.96和0.97。结论：第一代多层螺旋CT并不能提高CTA对1~2 mm小动脉瘤的检出能力。然而，在实践中，CTA作为一种快速、无创、无并发症的方法是优越的。
OBJECTIVE: Computed tomographic angiography (CTA) has become a diagnostic Method for the detection of intracranial aneurysms in cases of subarachnoid bleeding. We sought to evaluate the detection of aneurysms with CTA with a novel multislice helical computed tomographic scanner.METHODS: Prospectively, 179 patients underwent multislice CTA, followed by digital subtraction angiography (DSA) of both carotid arteries with or without the posterior circulation, DSA of one carotid artery with or without the posterior circulation, or DSA of the posterior, circulation alone. The total number of carotid arteries studied was 298, and the number of vertebrobasilar arteries studied was 124.RESULTS: Of 178 aneurysms verified with DSA or intraoperatively, CTA failed to detect 7 aneurysms of 1 to 2 mm and 1 partially thrombosed, 4-mm aneurysm. The sensitivity and specificity of CTA for aneurysm detection were 0.96 and 0.97, respectively.CONCLUSION: The first generation of multislice computed tomographic technology does not improve CTA to surpass DSA for the detection of small aneurysms of 1 to 2 mm. In practice, however, CTA is superior as a fast noninvasive method without complications.