颅内动脉瘤的CTA诊断价值分析

The value of CTA in the diagnosis of intracranial aneurysm

目的:探讨颅内动脉瘤(IA)的CTA表现。方法:回顾性分析40例经DSA或手术证实的IA的CTA表现,并与DSA或手术所见相对照、分析。结果:40例动脉瘤患者在CTA检查中共检出瘤体46个,6例多发,共检出12个IA(另1个夹层动脉瘤误诊为动脉瘤),34例单发。DSA及手术证实动脉瘤共48个。CTA漏诊2个,CTA动脉瘤诊断符合率93.87%,灵敏度95.83%。IA破裂及未破裂与IA形态及是否多发具有统计学意义,而年龄、性别及发病部位、Willis环变异或A1优势差异无统计学意义。结论:CTA诊断IA有较高符合率及灵敏度,很好地显示动脉瘤的三维形态,并且可以预测动脉瘤破裂的可能,具有较高的临床价值。

Objective:To analyze the CTA manifestations of intracranial aneurysm(IA).Methods:the CTA manifestations of IA were reviewed in 40 cases confirmed by DSA or operation.Results:46 aneurysms were detected in 40 cases,6 multiple aneurysms and 12 IA were detected(another dissecting aneurysm was misdiagnosed as an aneurysm),34 single aneurysms.48 aneurysms were confirmed by DSA or operation.The accuracy rate of CTA was 93.87%,and the sensitivity was 95.83%.IA rupture and non rupture,There was statistical significance with IA morphology and multiple occurrence,yet there was no significant difference in age,gender,site of onset,Willis ring variation or A1 advantage.Conclusion:There is a high accuracy and sensitivity in the diagnosis of IA in CTA.It can not only display the three-dimensional shape of aneurysm well,but also can predict the possibility of aneurysm rupture.thus having high clinical value.