后交通动脉瘤的形态学特征及破裂风险评估

目的：研究后交通动脉瘤的形态学特征与其破裂风险的相关性,初步预测后交通动脉瘤的破裂风险。方法回顾性分析该院2011年1月—2014年12月连续收治的单发后交通动脉瘤病例193例,按破裂情况分为破裂组80例和未破裂组113例,根据三维CTA模型,记录并比较两组间其瘤体平均大小,瘤体长度与瘤颈宽度的比值(A R值),不同瘤顶指向,有无子囊,采用多因素Logistic分析后交通动脉瘤破裂风险的独立危险因素。结果破裂组的瘤体平均大小为(6.55±2.85)mm,未破裂组的瘤体平均大小为(6.38±3.71)mm,两组差异无统计学意义(P﹥0.05)；多因素Logistic回归分析结果为：有子囊(OR=12.895,P=0.001)；A R值(OR=4.899,P=0.001)；瘤顶指向后下外(OR=7.498,P=0.029)。结论后交通动脉瘤的形态学特征中的瘤体长度与瘤颈宽度的比值(A R值)、有无子瘤、瘤顶指向后下外可以作为后交通动脉破裂风险的评估指标。

Morphological Features of Posterior Communicating Aneurysms and its Rupture Risk Assessment

Objective To determine the relationship between the morphological features and rupture risk of posterior com-municating aneurysms. Methods A retrospective analysis of our hospital from January 2011 to December 2014 from a single posterior communicating artery aneurysm in 193 cases, according to the rupture were divided into rupture group and 80 cas-es of unruptured group 113 cases, according to the 3D CTA model, recorded and compared between the two groups the av-erage ratio of tumor size, tumor length and neck width (A R value), there is no point to the top of different tumors, ASCI, using multivariate Logistic analysis of posterior communicating artery aneurysm rupture risk independent risk factors. Re-sults The average size of the tumor rupture group was (6.55 ±2.85) mm, the average size of unruptured aneurysm group was (6.38 ±3.71) mm, the difference between the two groups was not statistically significant (P>0.05);Logistic regression analy-sis results: (OR=12.895, P=0.001); A R value (OR=4.899, P=0.001); the top of aneurysm after pointing to the outside (OR=7.498, P=0.029). Conclusion A R, with daughter sac or not , Under the top of the tumor is the Morphological features of posterior communicating aneurysms, which can as its rupture assessment.