磁共振定量磁敏感图在心血管系统中研究进展  

Research progress of quantitative magnetic resonance magnetic sensitivity mapping in cardiovascular system

作　　者：刘雯婧 罗松 LIU Wenjing;LUO Song(Department of Radiology,Geriatric Hospital of Nanjing Medical University,Nanjing 210009,China)

机构地区：[1]南京医科大学附属老年医院放射科,南京210009

出　　处：《磁共振成像》2025年第3期162-166,共5页Chinese Journal of Magnetic Resonance Imaging

摘　　要：定量磁敏感图(quantitative susceptibility mapping,QSM)是一种基于梯度回波序列检测体内磁敏感物质并能定量磁化率值的成像技术。随着QSM技术的发展,近年来开始被应用于心血管系统,可定量检测血氧含量,心肌内铁含量以及心肌纤维化等,显示出较大的临床应用潜力。本文就QSM心脏成像的原理、图像质量影响因素、主要定量参数及QSM在心血管疾病中的临床应用进行综述,以期使相关研究者更全面地了解这一新的影像标志物,提高认识,更好地推动这一技术的临床研究及应用。Quantitative susceptibility mapping(QSM) is an imaging technique based on gradient echo sequences to detect magnetic sensitive substances in the body and accurately quantify magnetic susceptibility values.With the development of QSM technology,QSM is increasingly being applied to the cardiovascular system,it can quantitatively detect blood oxygen content,myocardial iron content,and myocardial fibrosis,demonstrating significant clinical potential.This paper reviews the principle of QSM cardiac imaging,the factors affecting image quality,the main quantitative parameters and the clinical application of QSM in cardiovascular diseases.The aim is to provide relevant researchers with a more comprehensive understanding of this new imaging marker,improve awareness,and promote the broader adoption of this technology in clinical research and practice.

关 键 词：心肌纤维化 心力衰竭 磁共振成像 定量磁敏感图 磁化率 心血管 

分 类 号：R445.2[医药卫生—影像医学与核医学] R541.7[医药卫生—诊断学]