交通支动脉瘤破裂出血类型的CT分析

CT classification of hemorrhage from ruptured anterior and posterior communicating artery aneurysms

目的研究单发前、后交通动脉瘤破裂出血类型CT影像学的特点,以提高临床疗效。方法回顾性分析吉林大学第一医院1年来经CTA及动脉瘤夹闭术后证实破裂的单发前交通动脉瘤50例及后交通动脉瘤30例,对比其CT平扫中蛛网膜下腔出血及形成血肿的特点进行出血类型的分型。结果 50例前交通动脉瘤中48例(96%)属于Ⅰ型出血类型,2例(4%)属于Ⅱ型出血类型;30例后交通动脉瘤中6例(20%)属于Ⅰ型出血类型,24例(80%)属于Ⅱ型出血类型。前、后交通动脉瘤Ⅰ型和Ⅱ型出血类型比较(P<0.05),有明显的统计学意义。结论前、后交通动脉瘤破裂的CT影像学出血类型有明显的差别,对临床确定颅内多发动脉瘤中的责任瘤体有重要指导意义。

Objective To assess CT features of hemorrhage from ruptured anterior and posterior communicating artery aneurysms （ACoAA, PCoAA ）. Methods CT scans of surgically confirmed ruptured ACoAA （50 cases） and PCoAA （30） were reviewed. Hemorrhage was categorized as subarachnoid hemorrhage （SAH）or intracerebral hematoma. Results Of the 50 cases of ruptured ACoAA, 48 cases （96 %） presented as SAH and 2 （4%） as intracerebral hematoma. Of the 30 cases of ruptured PCoAA, 6 （20%） presented as SAH and 24 （80 %） as intracerebral hematoma. The difference between the types of hemorrhage from ruptured ACoAA and PCoAA was statistically significant （P〈0.05）. Conclusion Ruptured ACoAA often results in SAH whereas ruptured PCoAA more frequently causes intracerebral hematoma.