Utility of Cardiac CT for Cardiomyopathy Phenotyping

Area of Science:

• Cardiology
• Medical Imaging
• Radiology

Background:

• Cardiac computed tomography (CT) has significantly advanced, offering high spatial resolution for cardiovascular disease assessment.
• While echocardiography and cardiac magnetic resonance imaging (CMR) are established standards, CT is increasingly vital.
• CT's role has expanded from coronary artery disease to cardiomyopathies and structural heart diseases.

Purpose of the Study:

• To review the evolving applications of cardiac CT in cardiomyopathy phenotyping.
• To highlight recent technological advancements in cardiac CT relevant to myocardial assessment.
• To discuss CT's utility in diagnosing and characterizing various cardiomyopathies.

Main Methods:

• Review of recent technological advancements in cardiac CT, including photon-counting CT.
• Discussion of CT-based techniques for assessing myocardial extracellular volume and fibrosis.
• Exploration of CT-derived myocardial strain analysis for evaluating contractility.
• Analysis of CT's role in quantifying cardiac volumes and function in cardiomyopathies.

Main Results:

• Photon-counting CT allows precise estimation of myocardial extracellular volume, aiding in infiltrative disorder detection.
• CT-based myocardial strain analysis can classify impaired contractility.
• Cardiac CT is crucial for quantifying cardiac volumes and function in cardiomyopathy evaluation.
• Cardiac CT is emerging as a key tool for comprehensive cardiomyopathy phenotyping.

Conclusions:

• Cardiac CT is a rapidly advancing, indispensable tool for diagnosing and prognosticating cardiovascular diseases.
• Innovations in CT technology enhance its capability for detailed myocardial assessment, including fibrosis and strain.
• Cardiac CT plays an increasingly important role in the phenotyping and management of cardiomyopathies.