摘要
目的观察DeBakeyⅠ型夹层动脉瘤血流量的变化,探讨其在夹层动脉瘤中的诊断价值。资料与方法对9例DeBakeyⅠ型夹层动脉瘤患者和31名正常自愿者的升主动脉和降主动脉内血流量进行测定,并生成时间-流量曲线,观察曲线特征,并对曲线的主峰位置、高度及宽度进行测量、比较。结果升、降主动脉真腔时间-流量曲线主峰呈"M"型表现,收缩晚期假腔血流出现返流。其真假腔主峰高度和宽度与正常对照组之间差异有统计学意义。结论时间-流量曲线能对DeBakeyⅠ型真、假腔作出判定。
Objective To investigate the changes of blood volume of aorta in DeBakeyⅠaortic dissection and explore the diagnositic value using MRI phase contrast method.Materials and Methods The flow of aortic blood in 9 cases of type DeBakeyⅠaortic dissection and 31 cases of normal volunteers were measured and time-flow curves were created.Results The performance of the main peak of curve in real lumen were same as the letter ＂M＂,the blood flow direction in false lumen was reversed in last stage of contraction.there were significant differences in the height and width of main peak between patients and volunteers.Conclusion The curve of time-flow is very useful in diagnosis of DeBakeyⅠaortic dissection.
出处
《临床放射学杂志》
CSCD
北大核心
2010年第6期754-756,共3页
Journal of Clinical Radiology
关键词
夹层动脉瘤
流量
相位对比
Aortic dissection Flow Phase contrast
