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Abstract #1792

A cine-ASL magnetic resonance method detects microvascular dysfunction in a mouse model of heart failure with preserved ejection fraction

Thulaciga Yoganathan1, Baby Martin-McNulty1, Florian Schmid1, Ganesh Kolumam1, Frank Kober2, and Johannes Riegler1
1Calico Sciences, South San Francisco, CA, United States, 2Centre de Résonance Magnétique Biologique et Médicale (CRMBM), Aix-Marseille University, CNRS, Marseille, France

Synopsis

Keywords: Heart Failure, Perfusion, Heart failure, preclinical imaging, HFpEF animal model, MRI

Motivation: Addressing the challenges in heart failure with preserved ejection fraction (HFpEF) diagnosis, the study aimed to validate cine-ASL as a precise non-invasive imaging tool.

Goal(s): The study sought to explore nuanced aspects of HFpEF, enabling a better understanding of its complexities through advanced imaging techniques.

Approach: Employing advanced cardiac magnetic resonance imaging with arterial spin labeling (cine-ASL), our study investigates longitudinally myocardial perfusion in a two-hit mouse HFpEF model.

Results: Significant reductions in myocardial perfusion in a HFpEF-like mouse model revealed the technique's efficacy in capturing HFpEF-related changes.

Impact: These findings highlight early coronary microcirculation impairment in HFpEF-like myocardium, shedding light on potential diagnostic biomarkers for HFpEF and paving the way for improved early diagnosis and understanding of the HFpEF pathophysiology.

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