磁共振成像设备特定能量吸收率研究进展与计量需求  

Research Progress and Metrological Requirements of Magnetic Resonance Imaging Equipment Specific Absorption Rate

作　　者：孙劼[1] 张璞[1] 李成伟 刘文丽[1] SUN Jie;ZHANG Pu;LI Chengwei;LIU Wenli(Division of Medical and Biological Measurement,National Institute of Metrology,Beijing 100013,China)

机构地区：[1]中国计量科学研究院医学与生物计量研究所,北京100013

出　　处：《中国医疗设备》2018年第3期110-114,共5页China Medical Devices

基　　金：国家重点研发计划专项课题(2016YFF0201004)

摘　　要：随着磁共振成像设备从低场向高场、超高场发展,其射频场造成受检者热损伤的风险逐渐提高。特定能量吸收率作为定量评价磁共振成像设备射频场生物热效应的指标受到研究者普遍关注。本文主要阐述了电磁场数值计算方法及磁共振成像设备特定能量吸收率仿真实验的研究进展,并对特定能量吸收率计量需求进行分析。As magnetic resonance imaging equipment is developed from low field to high field and ultra high field,the risk of thermal injury of the receiver is gradually increased.The specific absorption rate is widely concerned by researchers as a measure of the biothermal effect of the magnetic resonance radio-frequency field.The research progress of numerical calculation method of electromagnetic field and the simulation experiment of specific absorption rate of magnetic resonance imaging equipment were described in this paper,and then the specific absorption rate metrological requirements was analyzed.

关 键 词：磁共振成像设备 特定能量吸收率 数值计算 计量需求 

分 类 号：R714.5[医药卫生—妇产科学] R445.2[医药卫生—临床医学]