中国医疗设备2016，Vol.31Issue(3)：42-47,6.DOI:10.3969/j.issn.1674-1633.2016.03.008
多个低b值DWI技术在心脏成像中的初步研究
A Preliminary Study of the Cardiac Magnetic Resonance Multi-low-b DWI Technology
刘明熙 1张挽时 1张子衡 2孟利民 1龚万沣 1刘洁 1方红 1王萍1
作者信息
- 1. 空军总医院 CT MR科室，北京100142
- 2. GE医疗北京磁共振研究中心，北京 100176
- 折叠
摘要
Abstract
Objective To investigate the imaging technology and characteristics of cardiac magnetic resonance (CMR) multi-low-b DWI technology.Methods With a 3.0T magnetic resonance imaging (MRI) system, cardiovascular magnetic imaging, including MR Cine, T2WI and multi-low-b DWI technology, was performed in 30 healthy volunteers who had given written informed consent to investigate the clinical feasibility of multi-low-b DWI technology and to explore whether ADC values in different segmental myocardium, differentblood supply areas, different age-groups and gender were similar or not. A discussion was made on whichb value shouldbe selected tobetter relfect the perfusion of myocardium when using DWI technology to scan cardiac structure.Results The image quality of multi-low-b DWI technology wasbetter when theb values were 20, 60 s/mm2 (b<100 s/mm2). The study showed ADC values of some myocardial segments in healthy volunteers were different (F=6.315,P<0.001). ADC values of differentblood supply areas were different (F=27.804,P<0.001) asbelow: the ADC value of the left anterior descendingbranch was (0.01186±0.00422) mm2/s; the ADC value of the right coronary artery was (0.01032±0.00333) mm2/s; the ADC value of the left circumlfex was (0.00902±0.00248) mm2/s. Besides, myocardial ADC values were not different frombase to apex.Conclusion The CMR multi-low-b DWI technology is feasible and repeatable. Myocardial ADC values have regional variation. The image quality isbetter when theb values are 20, 60 s/mm2 (b<100 s/mm2) which indicates the images obtained through DWI technology canbetter relfect myocardial perfusion. The research provides relevant reference for choosing the appropriateb values in the future studies.关键词
心脏磁共振/弥散加权成像/健康志愿者Key words
cardiac magnetic resonance/diffusion magnetic resonance imaging/healthy volunteers分类
计算机与自动化引用本文复制引用
刘明熙,张挽时,张子衡,孟利民,龚万沣,刘洁,方红,王萍..多个低b值DWI技术在心脏成像中的初步研究[J].中国医疗设备,2016,31(3):42-47,6.
