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《Chinese Journal of Medical Imaging Technology》 2006-10
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Coronary angiography by 64-slice CT:optimization of contrast medium injection

QIU Jian-xing, WANG Ji-chen, LIU Jian, GAO Li, SUN Xiao-wei, WANG Yi-sheng, JIANG Xue-xiang (Department of Radiology, Peking University First Hospital, Beijing 100034, China)  
Objective To investigate the optimum contrast medium injection plan of coronary angiography by 64-slice CT. Methods Thirty consecutive patients undergoing coronary angiography by 64-slice CT were divided into three groups, namely group A, group B1 and group B2, each group included 10 patients. Patients in group A were less than 70 kg, patients in group B1 and group B2 were heavier than 70 kg. Group A and group B1 were injected 50 ml contrast medium with speed of 4.5 ml/s. Group B2 was injected 70 ml contrast medium with speed of 5 ml/s. The enhanced effect of three groups of patient in aorta, the trunk and branch of coronary artery were compared. Results The difference of enhancement in every vessel between group A and group B2 was not significant. Enhancement in partial vessel in group B1 was significantly less than in group B2. Conclusion The optimum contrast medium injection plan of coronary angiography by 64-slice CT was feasible.
【CateGory Index】: R816.2
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