Choe Yeon Hyeon, Kim Sung Mok
Department of Radiology and Center for Imaging Science, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwonro, Gangnam-Gu, Seoul, 06351 South Korea.
Nucl Med Mol Imaging. 2024 Dec;58(7):431-448. doi: 10.1007/s13139-024-00850-9. Epub 2024 Feb 14.
Recent technical innovation enables faster and more reliable cardiac magnetic resonance (CMR) imaging than before. Artificial intelligence is used in improving image resolution, fast scanning, and automated analysis of CMR. Fast CMR techniques such as compressed sensing technique enable fast cine, perfusion, and late gadolinium-enhanced imaging and improve patient throughput and widening CMR indications. CMR feature-tracking technique gives insight on diastolic function parameters of ventricles and atria with prognostic implications. Myocardial parametric mapping became to be included in the routine CMR protocol. CMR fingerprinting enables simultaneous quantification of myocardial T1 and T2. These parameters may give information on myocardial alteration in the preclinical stages in various myocardial diseases. Four-dimensional flow imaging shows hemodynamic characteristics in or through the cardiovascular structures visually and gives quantitative values of vortex, kinetic energy, and wall-shear stress. In conclusion, CMR is an essential modality in the diagnosis of various cardiovascular diseases, especially myocardial diseases. Recent progress in CMR techniques promotes more widespread use of CMR in clinical practice. This review summarizes recent updates in CMR technologies and clinical research.
与以往相比,近期的技术创新使心脏磁共振成像(CMR)更快、更可靠。人工智能被用于提高CMR的图像分辨率、快速扫描及自动分析。诸如压缩感知技术等快速CMR技术能够实现快速电影成像、灌注成像和延迟钆增强成像,提高患者通量并扩大CMR的适应证范围。CMR特征追踪技术可深入了解心室和心房的舒张功能参数,具有预后意义。心肌参数成像已被纳入常规CMR检查方案。CMR指纹识别技术能够同时定量心肌的T1和T2值。这些参数可能为各种心肌疾病临床前期的心肌改变提供信息。四维血流成像可直观显示心血管结构内或流经心血管结构的血流动力学特征,并给出涡旋、动能和壁面切应力的定量值。总之,CMR是诊断各种心血管疾病,尤其是心肌疾病的重要手段。CMR技术的最新进展推动了CMR在临床实践中的更广泛应用。本综述总结了CMR技术和临床研究的最新进展。