Related Experiment Video
Updated: May 26, 2025
Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse
Published on: June 20, 2014
[Clincial Research Progress in Using Magnetic Resonance Imaging to Assess Myocardial Fibrosis in Hypertrophic
Insights
Hypertrophic cardiomyopathy (HCM) is a leading cause of sudden cardiac death. Cardiac MRI techniques like late gadolinium enhancement and T1 mapping are advancing the noninvasive assessment of myocardial fibrosis in HCM patients.
Area of Science:
- Cardiology
- Medical Imaging
- Biomedical Engineering
Background:
- Hypertrophic cardiomyopathy (HCM) is the most common primary cardiomyopathy and a major cause of sudden cardiac death in young individuals.
- Myocardial fibrosis is a key pathological feature of HCM, contributing to adverse cardiac remodeling, arrhythmias, and heart failure.
- China has the world's largest population of HCM patients, with increasing prevalence.
Purpose of the Study:
- To review recent advancements in cardiac magnetic resonance imaging (MRI) for assessing myocardial fibrosis in HCM.
- To highlight the utility of various MRI techniques in characterizing HCM tissue and predicting patient prognosis.
Main Methods:
- Review of current cardiac MRI techniques for myocardial fibrosis evaluation in HCM.
- Focus on late gadolinium enhancement (LGE) and T1 mapping.
- Exploration of emerging techniques including T1ρ mapping and MRI-based radiomics and machine learning.
Main Results:
- Late gadolinium enhancement (LGE) and T1 mapping are established MRI methods for detecting myocardial fibrosis in HCM.
- These techniques aid in understanding HCM pathophysiology and patient risk stratification.
- Novel MRI approaches show promise for more comprehensive fibrosis assessment.
Conclusions:
- Cardiac MRI is the gold standard for noninvasive evaluation of myocardial fibrosis in HCM.
- Advanced MRI techniques offer improved tissue characterization and prognostic value for HCM patients.
- Future research directions include integrating radiomics and machine learning with MRI for enhanced HCM management.
Abstract:
Hypertrophic cardiomyopathy (HCM) is the most common type of primary cardiomyopathy that causes sudden cardiac death in adolescents and athletes. With over 1 million HCM patients, China has the largest population of HCM patients in the world, and the total number of cases is increasing year on year. Myocardial fibrosis is the most important histopathological characterization in HCM and is regarded as the primary cause of malignant ventricular arrhythmia, cardiac remodeling, and heart failure. At present, cardiac magnetic resonance imaging (MRI) serves as the gold-standard imaging modality for noninvasive evaluation of myocardial fibrosis. Several techniques, such as late gadolinium enhancement and T1 mapping, are showing considerable promise for potential applications. These techniques have emerged as viable imaging approaches to the elucidation of HCM tissue characterization. They are also helpful in predicting the long-term prognosis of patients. Herein, we summarized recent advances in using cardiac MRI to assess myocardial fibrosis in HCM from four perspectives, including late gadolinium enhancement, T1 mapping, T1ρ mapping, and MRI-based radiomics and machine learning models.
