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首页> 外文期刊>Journal of Dhaka Medical College >A comparative study of computed Tomographic Angiography and digital subtraction Angiography in evaluation of Aneurysmal Subarachnoid Haemorrhage
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A comparative study of computed Tomographic Angiography and digital subtraction Angiography in evaluation of Aneurysmal Subarachnoid Haemorrhage

机译：计算机体层摄影血管造影与数字减影血管造影评估动脉瘤性蛛网膜下腔出血的比较研究

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Context: The aim of the study was to retrospectively analyze the performance of Computed Tomographic Angiography (CTA) in detecting, localizing and sizing intracranial aneurysms in patients of aneurysmal subarachnoid haemorrhage using Digital Subtraction Angiography (DSA) as standard. Methods: The study was carried out from December 2009 to November 2010 in the Dept. of Neurology of Dhaka Medical College Hospital, Dhaka. Among 81 patients of SAH admitted in the above mentioned period, 30 were enrolled in the study as they met the inclusion criteria. Patient’s age range was 26 to 70 years; male female ratio was 1.5: 1. All the study patients underwent both DSA and CTA examinations. The findings of both procedures were recorded and compared. Results: A total of 30 aneurysms in 30 patients were identified on DSA. Among 10 small sized aneurysms (<4 mm) detected by DSA, CTA incorrectly diagnosed 2 and overlooked 2 aneurysms. Out of 14 medium sized (5- 12 mm) identified on DSA, CTA missed 2 aneurysms. But CTA correctly diagnosed all 6 large (e”13 mm) aneurysms. The overall sensitivity of CTA was 60% for small, 85.7% for medium and 100% for large aneurysm. Regarding identification of aneurysmal sites, CTA correctly localized 22 (73.4%), incorrectly localized 4 (13.3%) and missed 4 (13.3%) cases. Sensitivity of CTA in identification of aneurysmal site was 73.3%. Conclusion: CTA is less sensitive than DSA in detecting small and medium sized aneurysms. However it correlated perfectly with DSA in detection of large aneurysms. The performance of CTA in identification of aneurysmal site is also lesser than DSA. So, DSA remains the standard technique for evaluation of aneurysmal SAH. DOI: http://dx.doi.org/10.3329/jdmc.v22i2.21542 J Dhaka Medical College, Vol. 22, No.2, October, 2013, Page 195-200
机译：背景：该研究的目的是回顾性分析以数字减影血管造影术（DSA）为标准的计算机断层扫描血管造影（CTA）在检测，定位和确定动脉瘤性蛛网膜下腔出血患者颅内动脉瘤中的大小。方法：该研究于2009年12月至2010年11月在达卡达卡医学院附属医院神经内科进行。在上述期间收治的81例SAH患者中，有30例符合纳入标准，因此被纳入研究。患者的年龄范围为26至70岁;男女之比为1.5：1。所有研究患者均接受了DSA和CTA检查。记录并比较两种手术的结果。结果：在DSA上共鉴定出30例患者中的30例动脉瘤。 DSA检测到的10个小动脉瘤（<4 mm）中，CTA错误地诊断了2个，而忽略了2个。在DSA上发现的14个中型（5-12 mm）中，CTA漏诊了2个动脉瘤。但是，CTA正确诊断了全部6个大（e” 13毫米）动脉瘤。小动脉CTA的总体敏感性为60％，中动脉瘤为85.7％，大动脉瘤为100％。关于动脉瘤部位的识别，CTA正确定位了22个（73.4％），错误定位了4个（13.3％），漏诊了4个（13.3％）。 CTA对动脉瘤部位的敏感性为73.3％。结论：CTA在检测中小型动脉瘤方面不如DSA敏感。但是，它在大动脉瘤的检测中与DSA完美相关。 CTA在识别动脉瘤部位方面的表现也要比DSA差。因此，DSA仍然是评估动脉瘤SAH的标准技术。 DOI：http：//dx.doi.org/10.3329/jdmc.v22i2.21542 J Dhaka Medical College，Vol。 2013年10月2日，第22卷，第195-200页

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