ArticleThe international journal of cardiovascular imaging2026
Cardiac remodeling and myocardial late gadolinium enhancement in competitive amateur cyclists: insights from cardiac MRI.
Article in The international journal of cardiovascular imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate cardiac remodeling and right ventricular insertion point (RVIP) and non-RVIP late gadolinium enhancement (LGE) patterns, and their clinical and performance correlates, in cyclists using MRI.
methodsIn this prospective study, 66 competitive amateur cyclists (88% male; age 42 ± 13y) and 35 controls (74% males; age 40 ± 13y) underwent 3.0T contrast-enhanced cardiac MRI and cardiopulmonary exercise testing. Cycling history and competitiveness (score:10-70; higher=greater drive) were assessed by questionnaire.
resultsCompared to controls, cyclists showed 'athlete's heart' characteristics, including bi-ventricular enlargement and increased left ventricular (LV) mass (all p < 0.001). Focal non-ischemic myocardial LGE occurred in 19/58 (33%) of male cyclists, predominantly at the RVIP (RVIP LGE, 79%), and inferolateral wall (non-RVIP LGE, 21%). No female cyclists showed LGE. Male cyclists with non-RVIP LGE had higher myocardial mass (90 ± 5 vs. 79 ± 8 g/m
conclusionNearly one-third of cyclists had focal non-ischemic myocardial LGE, predominantly at the RVIP. Adverse remodeling and reduced function were confined to cyclists with non-RVIP LGE, suggesting a distinct, pathological phenotype.
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