7 T磁共振成像的临床应用优势、挑战及未来展望  

Clinical application advantages,challenges,and future prospects of 7 T MRI

作　　者：刘晨 王健[1,2] LIU Chen;WANG Jian(T Magnetic Resonance Imaging Translational Medical Center,Southwest Hospital,Army Medical University(Third Military Medical University),Chongqing 400038,China;Department of Radiology,Southwest Hospital,Army Medical University(Third Military Medical University),Chongqing 400038,China)

机构地区：[1]陆军军医大学第一附属医院7 T磁共振转化医学研究中心,重庆400038 [2]陆军军医大学(第三军医大学)西南医院放射科,重庆400038

出　　处：《磁共振成像》2024年第12期38-41,47,共5页Chinese Journal of Magnetic Resonance Imaging

基　　金：重庆市中青年医学高端人才工作室项目(编号:524Z28921);重庆市中青年医学高端人才项目(编号:514Z395);国家自然科学基金项目(编号:82071910)。

摘　　要：7 T磁共振成像(magnetic resonance imaging,MRI)作为超高场磁共振成像(ultrahigh field magnetic resonance imaging,UHF-MRI)的重要代表,凭借其超高的信噪比(signal-to-noise ratio,SNR)和空间分辨率,在神经系统、心血管、骨骼肌肉等多个系统的研究和临床应用中展现出独特优势。7 T在高分辨率结构成像、磁敏感加权成像(susceptibility-weighted imaging,SWI)、多核成像与波谱分析、血管的超微显示等方面取得了显著进展,为神经退行性疾病、肿瘤、骨关节疾病等的诊断和研究提供了重要工具。然而7 T MRI在射频场不均匀性、比吸收率(specific absorption rate,SAR)限制、成像伪影等方面仍面临技术挑战。本文对本次7 T组稿的系列研究论文和综述进行了概括,主要包括7 T MRI的核心优势、在特定系统中的应用进展,分析其临床应用面临的挑战,并探讨未来的研究方向,包括人工智能辅助的图像处理、临床应用标准和指南共识的制订等,以期为临床医生和影像学专家提供参考,促进7 T MRI的规范化应用和发展。7 T magnetic resonance imaging(7 T MRI),as a prominent representative of ultrahigh field magnetic resonance imaging(UHF-MRI),offers superior signal-to-noise ratio(SNR)and spatial resolution,providing unique advantages in the research and clinical applications across neurological,cardiovascular,musculoskeletal,and other systems.Significant progress has been made in high-resolution structural imaging,susceptibility-weighted imaging(SWI),multinuclear imaging and spectroscopy,and ultramicrovascular visualization,facilitating the diagnosis and study of neurodegenerative diseases,tumors,cardiac diseases,and joint disorders.However,challenges such as RF field inhomogeneity,specific absorption rate(SAR)limitations,and imaging artifacts persist.This review summarizes the core advantages of 7 T MRI,its application progress in specific systems,analyzes the challenges in clinical applications,and discusses future research directions,including artificial intelligence-assisted image processing and the establishment of clinical application standards and consensus guidelines,aiming to provide references for clinicians and radiologists,and to promote the standardized application and development of 7 T MRI.

关 键 词：7 T磁共振成像 超高场磁共振成像 神经系统 心血管系统 骨骼肌肉系统 人工智能 临床应用标准 

分 类 号：R445.2[医药卫生—影像医学与核医学]