The study of two methods for high pressure injetion in CT enhancement to display the aortic dissecting aneurysm
- VernacularTitle:两种不同高压注射方式在主动脉夹层动脉瘤显影的对比研究
- Author:
Yang WANG
;
Bin ZHU
;
Zhen ZHANG
- Publication Type:Journal Article
- Keywords:
High pressure injection;
Dissecting aneurysm;
Constrast medium
- From:
Journal of Interventional Radiology
2006;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To discuss the consequences of two different methods of high pressure injection in CT contrast enhancement to display the aortic dissecting aneurysm.Methods 100 patients underwent Lightspeed 16 MS CT with contrast enhancement of Stellant D high pressure injector(Medrad),injecting speed of 4.0 ml/s and 80 ml dosage of contrast medium.All patients were divided into A and B groups with 50 in each.The single high pressure injection was applied to A group without isotonic Na chloride flush.B group underwent the same high pressure injection and followed by isotonic Na chloride flush.The method of evaluation was carried out by double blind observation.Results A group revealed radiologic artifact up to 40 cases with positive rate of 80%.B group demonstrated the same kind of radiologic artifact in 26 cases with positive rate of 52%.Conclusions Using normal saline(sodium chloride solution)flush after high pressure injection of contrast medium during MSCT angiography is obviously better to demonstrate the internal structures of treatvessels.
