Diastolic Cardiac Function by MRI-Imaging Capabilities and Clinical Applications

Area of Science:

• Cardiology
• Medical Imaging
• Biophysics

Background:

• Left ventricular (LV) systolic function is commonly studied, but diastolic function assessment is gaining importance due to rising heart failure with preserved ejection fraction (HFpEF) prevalence.
• Diastolic dysfunction, marked by impaired myocardial relaxation and filling, is linked to aging and cardiovascular risks like hypertension and diabetes.
• Early detection of diastolic dysfunction is critical for managing cardiovascular health.

Purpose of the Study:

• To review cardiac magnetic resonance imaging (MRI) techniques for evaluating diastolic cardiac function.
• To explore the clinical applications and findings of MRI in various heart diseases.
• To highlight MRI's potential in detecting subtle changes in cardiac function related to patient demographics.

Main Methods:

• Cardiac MRI techniques for assessing myocardial relaxation and LV filling patterns.
• Analysis of diastolic parameters beyond the traditional E/A ratio.
• Review of existing literature on MRI in diastolic dysfunction.

Main Results:

• Cardiac MRI can differentiate normal from abnormal myocardial relaxation, enabling early diastolic dysfunction detection.
• MRI allows detailed spatial and temporal assessment of cardiac contractility during diastole.
• Specific MRI parameters can reveal subtle functional changes associated with age, gender, and comorbidities.

Conclusions:

• Cardiac MRI is a powerful tool for comprehensive diastolic function assessment.
• MRI facilitates early diagnosis and characterization of diastolic dysfunction, particularly in HFpEF.
• The review underscores MRI's value in understanding diverse patient populations and heart conditions.