冠状动脉CT扫描中体质量指数与对比剂用量关系研究  

Relationship between body mass index and contrast agent dose during CT scan of coronary artery

作　　者：王俊鹏 薛金娟[1] 朱佳[1] 孙琳[1] 张亚斌[1] 付文荣[1] 宋立军[1] 崔光彬[1] 

机构地区：[1]第四军医大学唐都医院放射诊断科,西安710038

出　　处：《医疗卫生装备》2016年第5期101-103,共3页Chinese Medical Equipment Journal

摘　　要：目的 :探讨在冠状动脉CT扫描过程中体质量指数与对比剂用量的关系。方法 :收集临床疑有心肌缺血性病变患者90例,按体质量指数分为偏瘦组、正常组和肥胖组3组,各30例,实行对照研究。利用心电门控、螺旋扫描方式采集冠状动脉容积数据,然后采用容积再现(volume rendering,VR)、最大密度投影(maximum intensity projection,MIP)和曲面重建(curved plannar reconstruction,CPR)等方法进行图形后处理。结果:单因素方差分析显示,肥胖组、正常组和偏瘦组在冠状动脉左总干、左前降支、左旋支、右冠状动脉图像评分中均无显著性差异(P>0.05)。结论:在心脏CT扫描过程中体质量指数与对比剂用量无明显关系。Objective To investigate the relationship between the body mass index and the contrast agent dose during CT scan of the coronary artery. Methods Totally 90 patients with suspected myocardial ischemic lesions were collected, and then divided into three groups, namely the underweight group, normal group and obesity group, according to the body mass index with each group having 30 patients. ECG gating and spiral scanning-mode were applied to gathering the volume data of coronary blood, then data processing was performed through VR（volume rendering）, CPR（curved planar reconstruction）, MIP （maximum intensity projection） and other data analytical methods. Results One-way ANOVA （analysis of variance） showed that there were not significant differences between the three groups in terms of the image scale in the left main coronary, left anterior descending, left circumflex artery and right coronary artery （P〉0.05）. Conclusion There is not significant correlation between the body mass index and the contrast agent dose during CT scan of the coronary artery.

关 键 词：体质量指数 对比剂用量 CT冠状动脉成像 

分 类 号：R816.2[医药卫生—放射医学] R541[医药卫生—临床医学]