磁共振成像超柔射频接收线圈研究进展  

Research Progress of Ultra-Flexible Radiofrequency Receiver Coils for Magnetic Resonance Imaging

作　　者：宋春虎 陈巧燕 车韶 王海宁 李烨[1,2] SONG Chunhu;CHEN Qiaoyan;CHE Shao;WANG Haining;LI Ye(Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,518055;Shenzhen United Imaging High-end Medical Equipment Innovation Research Institute,518000)

机构地区：[1]中国科学院深圳先进技术研究院Paul C.Lauterbur生物医学成像研究中心,广东深圳518055 [2]深圳市联影高端医疗装备创新研究院,广东深圳518000

出　　处：《生命科学仪器》2022年第2期4-16,共13页Life Science Instruments

基　　金：国家重点研发计划课题(2021YFE0204400,2021YFF0501402);中国科学院青年创新促进会优秀会员基金资助项目(Y2021098);深圳市优秀科技创新人才基金资助项目(RCYX20200714114735123);广东省重点实验室项目(2020B1212060051)

摘　　要：射频接收线圈是决定磁共振成像质量的关键部件。目前,临床磁共振成像系统的射频接收线圈主要是采用固定形状或半柔性结构,线圈尺寸适用于几乎全部的病人。然而,由于不同人体形之间的差异较大,在颈部、关节、乳腺、腹部、婴儿等成像中,射频接收线圈离成像部位较远,导致图像信噪比较低,进而影响图像质量和临床诊断。因此,提高图像信噪比一直是磁共振成像前沿技术发展的方向。近年来,超柔射频线圈由于能够很好地贴合成像部位,从而提高图像信噪比,在颈部、关节、乳腺、腹部、婴儿等成像应用中展示了巨大的潜力。本文主要总结了超柔射频线圈相关的研究与应用,并讨论了超柔射频线圈的关键技术挑战与未来发展趋势。The radiofrequency receiver coil is a key component that determines the image quality of magnetic resonance imaging.At present,the RF coils of clinical MRI systems are mainly fixed shape or semi-flexible,and the coil sizes are suitable for almost all patients.However,due to the large differences between different people’s body shapes,the RF receiver coils are far away from the imaging site in the neck,joint,breast,abdomen and infant imaging.This would result in low image signal-to-noise ratio,which affects the image quality and clinical diagnosis.Therefore,improving the image SNR has been always the development direction of the advance MRI technologies.In recent years,due to the ability to fit well into the imaging sites,ultra-flexible RF coils can improve the image SNR and have demonstrated great potential in the applications,such as neck,joint,breast,abdomen,and infant imaging.This paper summarizes the research and applications,and discusses the key technical challenges and future development trends of the ultra-flexible RF coils.

关 键 词：磁共振成像 射频线圈 超柔 信噪比 

分 类 号：TH77[机械工程—仪器科学与技术]