【摘要】 目的 探讨320排CTA对颅内动脉瘤诊断的临床应用价值。方法 收集2010-04—2011-03期间行320排CTA和DSA检查的颅内动脉瘤患者33例。将CTA图像质量按颅底骨质残留及血管显示情况分为4个等级,再以DSA所见为对照,分析320排CTA诊断颅内动脉瘤的敏感性及粗符合率。结果 33例经320排CTA检出颅内动脉瘤30例33个、动静脉畸形(AVM)2例、颅内动脉瘤合并AVM 1例;经DSA证实有颅内动脉瘤30例33个、AVM 3例,其中动脉瘤“假阳性”1例;有22例行手术治疗。320排CTA诊断颅内动脉瘤敏感性为100%,粗符合率为97.0%。结论 与DSA比较,320排CTA诊断颅内动脉瘤有较高的敏感性及粗符合率,在术前筛查方面具有广泛的临床应用前景。更多还原

【Abstract】 Objective To study the effectiveness of 320-detector row CT angiography(CTA) for intracranial aneurysms.Methods33 cases of intracranial aneurysms were examined during April 2010 to March 2011 by using 320-detector row CTA and DSA.CTA images were ranked by four grades according to skull remaining and artery displaying.The sensitivity and crude accuracy of320-detector row CTA in diagnosis of intracranial aneurysms were analysed,and compared with the results of DSA.Results 33 intracranial aneurysms(30 cases),2 arteriovenous malformations(2 cases) and 1 intracranial aneurysm accompanied with arteriovenous malformation(1 case) were found by CTA.33 intracranial aneurysms(30 cases) and 3 arteriovenous malformations(3 cases) were detected by DSA,among aneurysms,one was false positive;22 cases underwent surgical treatment.The sensitivity and accurate rate of CTA in diagnosis of intracranial aneurysms were 100% and 97.0%,respectively.Conclusion In comparison with DSA,320-detector row CTA has higher sensitivity and crude accuracy in diagnosis of intracranial aneurysms,it is of significant applied value in preoperative screening for intracranial aneurysms.更多还原