主动脉夹层体循环时间改变相关因素影像学研究  

The imaging study on the related factors of the change of systemic circulation time for aortic dissection patients

作　　者：徐倩[1] 路俊英[1] 郭志军[1] 迟红卫[1] 赵宝宏[1] 陈艳芳[1] 

机构地区：[1]华北油田总医院影像科,河北任丘062552

出　　处：《实用放射学杂志》2014年第10期1646-1649,共4页Journal of Practical Radiology

摘　　要：目的：探讨主动脉夹层（AD）患者体循环时间改变的相关影像学因素。方法回顾性测量和分析36例AD患者和30例对照组的影像资料,利用CT血管成像（CTA）进行影像学测量,并与对比剂左心室达阈值时间进行相关分析。利用 Stanford 分型将36例AD患者分为A型（17例）和B型（19例）2组。首先对以上3组左心室达阈值时间进行对比分析；其次对CTA各测量参数与左心室达阈值时间之间进行相关分析。结果左心室达阈值时间 Stanford A 型、B型2组分别与正常对照组对比,总体均数差异具有统计学差异（P〈0.05）,Stanford A、B型2组间比较,尚无有统计学差异（P〉0.05）；AD患者左心室达阈值时间与假/真腔比值具有明显相关性（r=0.676,P〈0.001）,与主动脉最大直径、内膜破口直径具有相关性（r=0.371和0.355,P〉0.05）。结论主动脉夹层患者左心室达阈值时间比正常人明显延长,并且与假/真腔比值明显相关。Objective To explore the related imaging factors about the change of systemic circulation time for aortic dissection （AD）patients.Methods Image data of 36 patients with AD and 30 patients in control group were analyzed retrospectively,the cor-relation analysis was made between the results of imaging measurement by using CT angiography （CTA）and the threshold time of the contrast agent in the left ventricular.3 6 patients with AD were divided into 2 groups （type A 1 7 cases and type B 1 9 cases）by using Stanford type.First,the threshold time in the left ventricular of the 3 groups were analyzed comparatively;next,the correla-tions between each CTA measured parameter and the threshold time in the left ventricle were analyzed.Results Threshold time in left ventricular of group Stanford A and group Stanford B were compared with the control group respectively,the overall mean difference was statistically significant （P 〈0.05）.Between Stanford A and B,there was no significant difference （P〉0.05）.There was a significant correlation between threshold time in left ventricular and the ratio of false/true lumen （r=0.676,P〈0.001）.And the correlation was also found between threshold time and the maximum diameter of aorta or the diameter of intimal tear （r = 0.371 and 0.355,P〉 0.05）.Conclusion The threshold time of left ventricular for aortic dissection patients is significantly longer than the normal control group,and is significantly related with the ratio of false/true lumen.

关 键 词：计算机体层成像 血管成像 主动脉夹层 监控触发技术 

分 类 号：R814.42[医药卫生—影像医学与核医学] R543.1[医药卫生—放射医学]