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目的探讨3D-DSA最大密度投影(MIP)重组技术在颅内动脉瘤术后随访中的应用价值。方法搜集广东省人民医院2008年7月至2013年4月进行颅内动脉瘤栓塞或夹闭术后,行3月以上3D-DSA随访的病例203例,比较分析3D-DSA MIP与2D-DSA的随访复查结果和3D-DSA 3种后处理技术的差异。结果 203例患者共221个动脉瘤。3D-DSA随访复查,发现25例复发。而行2D-DSA成像时,漏诊率达16%(4/25)。3种3D-DSA后处理技术均发现复发,但光透技术(TR)和容积再现技术(VRT)未能显示瘤体内的弹簧圈填塞情况。结论 3DDSA-MIP重组技术能够提高颅内动脉瘤复发的正确诊断率,在颅内动脉瘤DSA随访中具有重要应用价值。
Objective To investigate the value of 3D-DSA MIP recombination in postoperative follow-up of intracranial aneurysms. Methods Totally 203 cases of 3D-DSA follow-up from March to March were collected from Guangdong Provincial People’s Hospital from July 2008 to April 2013 after embolization or occlusion of intracranial aneurysm. The 3D-DSA MIP and 2D-DSA Of the follow-up results and 3D-DSA 3 kinds of post-processing technology differences. Results A total of 221 aneurysms were obtained in 203 patients. 3D-DSA follow-up review found 25 cases of recurrence. In 2D-DSA imaging, the rate of missed diagnosis was 16% (4/25). Three kinds of 3D-DSA post-processing techniques were found recurrence, but the light transmission technology (TR) and volume rendering technology (VRT) failed to show the tumor coil packing. Conclusion The 3DDSA-MIP recombinant technique can improve the correct diagnosis rate of intracranial aneurysm recurrence and has an important value in DSA follow-up of intracranial aneurysm.