Imaging of myocardial perfusion with magnetic resonance

Area of Science:

• Cardiovascular Imaging
• Medical Diagnostics
• Cardiac Physiology

Background:

• Coronary artery disease (CAD) is a leading cause of death globally.
• Noninvasive diagnosis of CAD remains challenging due to the complexity of cardiac function and morphology.
• Current imaging techniques like MR and CT can depict stenoses but often fail to reveal their functional impact.

Purpose of the Study:

• To review the pathophysiologic basis of myocardial perfusion.
• To explore recent technical advancements in first-pass MRI.
• To discuss the current clinical applications of first-pass MRI for myocardial perfusion.

Main Methods:

• Review of existing literature on first-pass myocardial perfusion MRI.
• Analysis of pathophysiologic mechanisms related to myocardial blood flow.
• Evaluation of technical developments and clinical status of the imaging technique.

Main Results:

• First-pass MRI provides insights into myocardial blood flow, a key parameter for assessing CAD.
• Technical developments have enhanced the capabilities of first-pass MRI for perfusion imaging.
• The technique is increasingly recognized for its role in evaluating the functional significance of coronary stenoses.

Conclusions:

• First-pass MRI is a valuable tool for assessing myocardial perfusion and the hemodynamic impact of CAD.
• It complements anatomical imaging by providing crucial functional information.
• Further advancements and clinical integration are expected to enhance CAD diagnosis and management.