蛛网膜下腔出血后计算机断层血管造影与数字减影血管造影对脑动脉瘤诊断有效性的对比研究。
The comparative study on diagnostic validity of cerebral aneurysm by computed tomography angiography versus digital subtraction angiography after subarachnoid hemorrhage.
作者信息
Saboori Masih, Hekmatnia Ali, Ghazavi Amirhossein, Basiratnia Reza, Omidifar Navid, Hekmatnia Farzaneh, Isfahani Homayoon Naji
机构信息
Associated Professor of Neurosurgery, Department of Neurosurgery, Alzahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.
出版信息
J Res Med Sci. 2011 Aug;16(8):1020-5.
BACKGROUND
In order to declare the preoperative diagnostic value of brain aneurysms, two radiological modalities, computed tomographic angiography and digital subtraction angiography were compared.
METHODS
In this descriptive analytic study, diagnostic value of computed tomographic angiography (CTA) was compared with digital subtraction angiography (DSA). Sensitivity, specificity, positive and negative predictive values were calculated and compared between the two modalities. All data were analyzed with SPSS software, version 16.
RESULTS
Mean age of patients was 49.5 ± 9.13 years. 57.9 % of subjects were female. CTA showed 89% sensitivity and 100% specificity whereas DSA demonstrated 74% sensitivity and 100% specificity. Positive predictive value of both methods was 100%, but negative predictive value of CTA and DSA was 85% and 69%, respectively.
CONCLUSIONS
Based on our data, CTA is a valuable diagnostic modality for detection of brain aneurysm and subarachnoid hemorrhage.
背景
为了阐明脑动脉瘤的术前诊断价值，对两种放射学检查方法，即计算机断层血管造影（CTA）和数字减影血管造影（DSA）进行了比较。
方法
在这项描述性分析研究中，将计算机断层血管造影（CTA）的诊断价值与数字减影血管造影（DSA）进行了比较。计算并比较了两种检查方法的敏感性、特异性、阳性预测值和阴性预测值。所有数据均使用SPSS 16.0软件进行分析。
结果
患者的平均年龄为49.5±9.13岁。57.9%的受试者为女性。CTA的敏感性为89%，特异性为100%，而DSA的敏感性为74%，特异性为100%。两种方法的阳性预测值均为100%，但CTA和DSA的阴性预测值分别为85%和69%。
结论
根据我们的数据表明，CTA是检测脑动脉瘤和蛛网膜下腔出血的一种有价值的诊断方法。
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