The imaging study on the related factors of the change of systemic circulation time for aortic dissection patients
10.3969/j.issn.1002-1671.2014.10.011
- VernacularTitle:主动脉夹层体循环时间改变相关因素影像学研究
- Author:
Qian XU
;
Junying LU
;
Zhijun GUO
;
Hongwei CHI
;
Baohong ZHAO
;
Yanfang CHEN
- Publication Type:Journal Article
- Keywords:
computed tomography;
angiography;
aortic dissection;
monitored-triggered technique
- From:
Journal of Practical Radiology
2014;(10):1646-1649
- CountryChina
- Language:Chinese
-
Abstract:
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.
