脉搏门控与心电门控在颈动脉粥样硬化斑块MRI中的应用比较
MRI;动脉粥样硬化;颈动脉;斑块,,],MRI;动脉粥样硬化;颈动脉;斑块,1资料方法,2结果,3讨论,参考文献:
[摘 要] 目的:比较脉搏门控与心电门控在颈动脉粥样硬化斑块MRI中的应用。方法:用1.5 T磁共振仪对15位健康志愿者采用心电门控和脉搏门控FSEDIRT1WI进行颈动脉壁成像,测量和比较两种序列的采集时间(TA)、图像信噪比(SNR)、对比噪声比(CNR)、靶血管壁完整性和血流伪影。结果:心电门控和脉搏门控FSEDIRT1WI在采集时间和评价图像质量的各项指标的差异均无统计学意义(P>0.05)。结论:颈动脉粥样硬化斑块MRI分析序列中,可以采用脉搏门控代替心电门控。[关键词] MRI;动脉粥样硬化;颈动脉;斑块
A Comparison of Peripheral Pulsegating with Cardiacgating in Application in Carotid Atherosclerotic Plaque MRI
ZHANG Lixiang,XU Jianmin,GONG Jingshan,LI Ying,SUN Liming,ZHU Jin
(Shenzhen People's Hospital, The Second Affiliated Hospital of Jinan University Medical College,Shenzhen, Guang dong 518020, China)
Abstract:Objective To compare the application of peripheral pulsegating and cardiacgating in carotid atherosclerotic plaque MRI.Methods Carotid MR imaging was performed in 15 healthy volunteers at a 1.5T MR scanner. Sequences including cardiacgated and peripheral pulsegated FSEDIRT1WI were carried out. Acquisition Time (TA), Signal to Noise Ratio (SNR), Contrast to Noise Ratio (CNR), integrity of vessel wall, blood flow artifact were measured and compared. Results There were no significant differences of TA, SNR, CNR, Integrity of vessel wall and blood flow artifact between cardiacgated and peripheral pulsegated FSEDIRT1WI (P>0.05).Conclusion Peripheral pulsegating can be used in carotid atherosclerotic plaque MRI instead of cardiacgating. ......
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