DSA对颅内动脉瘤形态与体积的诊断价值

The diagnosis of morphology and volume in intracranial aneurysms by DSA

目的探讨DSA对颅内动脉瘤的形态与体积的诊断,统计各型颅内动脉瘤的检出率,为手术及血管内介入治疗提供直观依据。方法回顾性分析2009-01—2015-01我院120例经CTA、MRA、DSA确诊的颅内动脉瘤患者,CTA、MRA确诊者再行DSA检查,根据颅内动脉瘤形态学特点及大小,总结各型的检出率。结果根据颅内动脉瘤形态学特点分型:囊状动脉瘤(包括圆形、椭圆形、球形、葫芦形、漏斗形、哑铃型、分叶形、多角形、腊肠形、不规则形)检出率94.0%,梭形动脉瘤检出率4.2%,夹层动脉瘤检出率0.8%。根据颅内动脉瘤大小:小动脉瘤(直径<0.5cm)检出率47.9%,一般动脉瘤(0.5cm≤直径<1.5cm)检出率42.2%,大型动脉瘤(1.5cm≤直径<2.5cm)检出率7.7%,巨型动脉瘤(直径≥2.5cm)检出率2.2%。结论 DSA对动脉瘤形态与体积作出准确诊断与直观显现,为手术及血管内介入治疗提供依据。

Objective To investigate the diagnosis of intracranial aneurysms by DSA, and the detection rate of intraeranial aneurysms. Methods A retrospective analysis was made on 120 patients with intraeranial aneurysms from January 2009 to January 2015 in our hospital by the CTA, MRA, and DSA. Patient was given DSA diagnosis after CTA, MRA confirmed. We summed up the detection rate of each type according to intracranial aneurysms characteristic morphological characteristics and size. Results According to the morphological characteristics of intracranial aneurysms, the detection rate of saceular aneurysm （including circular, oval, spherical, gourd-shaped, funnel-shaped, dumbbell-shaped, sub-leaf, polygonal, sausageshaped, irregular-shaped） accounted for 94.0%, spindle aneurysm accounted for 4.2%, dissecting aneurysm accounted for 0.8%. According to the size of intracranial aneurysm, the detection rate of small aneurysm （diameter〈0.5 cm） was 47.9%, general aneurysm （0.5 em≤diameter%1.5 cm） was 42.2%, large aneurysm （1.5 cm≤diameter%2.5 cm） was 7.7%, and giant aneurysm （diameter≥2.5 cm） was 2.2%. Conclusion DSA has an accurate and intuitive diagnosis for aneurysm morphology and volume, and provides evidence for surgery and endovascular therapy.