MSCT数字减影血管造影在颅内动脉瘤的临床应用

Clinical Application of Multi-slices CT (MSCT) Digital Subtract Angiography in Intracranial Aneurysm

目的:探讨多排螺旋CT(MSCT)数字减影血管造影在颅内动脉瘤诊断中的临床应用价值。方法:回顾分析35例可疑颅内动脉瘤患者,应用MSCT数字减影血管造影进行颅内动脉成像,全部患者均进行了手术确诊或DSA检查,并将两种检查结果进行比较。结果:全部患者中手术及DSA造影共检出动脉瘤43个,采用数字减影CTA共检出40个,漏检3个,未检出3个均为颅内(1个为多发)微小动脉瘤,敏感性为93.0%。常规CTA检出动脉瘤36个,漏检7个,未检出中4个为颈内动脉入颅段(床突下)动脉瘤,3个为微小动脉瘤,敏感性为83.7%。结论:MSCT数字减影血管造影术是一种安全、无创的新型检查方法,对靠近颈内动脉入颅段(床突下)的动脉瘤检出方面具有较高的特异性及敏感性,在颅内动脉瘤的初步筛选及评价方面具有较高的临床应用价值。

Objective： To study the value of application of MSCT DSA in the diagnosis of intracranial aneurysm. Methods： MSCT digital subtract angiography was performed in 35 patients who were suspected of having intracranial aneuryrn. All the patients were treated by surgical operation with DSA. The results of the two methods were compared with each other. Results：By operation and DSA,43 aneurysms were found. By digital subtract CTA,40 aneurysms were found with 3 missed. All the missed cases were intracranial micro-aneurysms. The sensitivity and specificity of subtract CTA were 93.0%. By conventional CTA,36 aneurysrns were found with 7 missed. In the missed cases,4 were aneurysms located in the internal cervical artery intracranial segment,3 xvere mocro-aneurysms. The sensitivity and specificity were 83.70%. Conclusion：MSCT subtract CTA is a new technique, which is safe and causes no injury. It has high specificity and sensitivity in the diagnosis of aneurysm near the intracranial segment of internal cervical artery. It has high clinical value in the preliminary screening of aneurysm and evaluation.