心脏磁共振成像在心肌肥厚病变组织和功能定量评价中的研究进展

Research progress of cardiovascular magnetic resonance in quantitative evaluation of tissue and function of myocardial hypertrophy

心脏磁共振(cardiovascular magnetic resonance,CMR)已经逐渐发展成为心脏病学中不可或缺的工具。它是一种非侵入性技术,能够客观实现心肌组织的结构和功能性评估。近年来随着心脏磁共振扫描技术革新与并行采集运用而开展的T1mapping和T2 mapping技术,可更好地对心肌组织特征进行定量研究。心脏磁共振扩散张量成像(diffusion tensor imaging,DTI)可以在微观水平检测水分子在心肌纤维中的运动方向和幅度。心肌应变技术的出现,给临床提供了一种评估心脏功能的全新选择。计算机处理能力和云计算方面取得重大进展,有力地促进了CMR人工智能的发展。该综述对T1 mapping、T2 mapping技术、DTI、心肌应变技术以及人工智能在心肌肥厚病变组织和功能定量评价方面的新进展进行归纳总结。

Cardiovascular magnetic resonance(CMR)has gradually developed into an indispensable tool in cardiology.It is a non-invasive technique,which can objectively evaluate the structure and function of myocardial tissue.In recent years,with the innovation of cardiac magnetic resonance scanning technology and the application of parallel acquisition,T1 mapping and T2 mapping technology can better quantitatively study the characteristics of myocardial tissue.Cardiac diffusion tensor imaging(DTI)can detect the movement direction and amplitude of water molecules in myocardial fibers at microscopic level.The emergence of myocardial strain technology provides a new choice for clinical evaluation of cardiac function.Great progress has been made in computer processing capacity and cloud computing,which effectively promotes the development of CMR artificial intelligence.This review summarizes the new progress of T1 mapping,T2 mapping,DTI,myocardial strain technology and artificial intelligence in quantitative evaluation of tissue and function of myocardial hypertrophy.