Abstract #0621

Enhancing myocardial scar detection by combining fat-water separation with bright- and black-blood late gadolinium enhancement imaging

Manuel Villegas-Martinez^1,2, Victor de Villedon de Naide^1,2, Ilyes Ben Lala^1,2, Kalvin Narceau¹, Victor Nogues¹, Gaël Dournes^1,2, Claire Bazin², Jean-David Maes², Soumaya Sridi², Matthias Stuber^3,4, Hubert Cochet^1,2, and Aurélien Bustin^1,2

¹IHU LIRYC, Electrophysiology and Heart Modeling Institute, Université de Bordeaux – INSERM, Centre de Recherche Cardio-Thoracique de Bordeaux, Bordeaux, France, ²Department of Cardiothoracic Imaging, Hôpital Cardiologique du Haut-Lévêque, Bordeaux, France, ³Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland, ⁴Center for Biomedical Imaging (CIBM), Lausanne, Switzerland

Synopsis

Keywords: Myocardium, Fat

Motivation: Combined bright- and black-blood late gadolinium enhancement has shown potential for scar detection.However, accurate differentiation between scar and fat tissue in these images can pose a challenge.

Goal(s): To assess the SPOT-Dixon sequence, a joint bright- and black- blood methodology in combination with a two-point Dixon approach to improve myocardial scar detection and delineation.

Approach: The proposed sequence was tested in 13 patients with suspected cardiovascular diseases and the results were compared to those from reference sequences.

Results: The SPOT-Dixon sequence was able to reliably delineate scar tissue within the myocardium and differentiate it from fat in its proximity.

Impact: The proposed sequence combining the SPOT sequence and a two-point Dixon method gives reliable images of the myocardial scar and the fat tissue surrounding it, providing a valuable diagnostic advantage and potentially improving the accuracy of cardiovascular assessments.

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