ArticleQuantitative imaging in medicine and surgery2025
Assessing myocardial hyperemia in acute myocarditis with 3T contrast-enhanced whole-heart magnetic resonance imaging: a feasibility study.
Article in Quantitative imaging in medicine and surgery, 2025. 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
Background: Early gadolinium enhancement (EGE) assessment for myocardial hyperemia is generally considered the least robust of the three Lake Louis Criteria (LLC), which is attributable to the limitations of the technique. The purpose of this study was to assess the feasibility of the contrast-enhanced whole-heart magnetic resonance imaging (CE WH-MRI) as a novel method for the diagnosis of acute myocarditis. Methods: We retrospectively reviewed the data of 54 patients admitted to Fujian Medical University Union Hospital between May 2020 to March 2024 with clinically suspected acute myocarditis. The diagnostic guidelines established by the European Society of Cardiology (ESC) were applied in this study. Additionally, we included 43 healthy individuals as controls. The hyperintense areas in the late gadolinium enhancement (LGE) and CE WH-MRI images were doubtfully or reliably interpreted by the two observers. The left ventricular (LV) myocardium was divided into 17 segments according to American Heart Association (AHA) consensus, which allowed us to evaluate the presence of hyperemia-weighted patterns or LGE. Results: The final population included 43 patients. The acquisition time of CE WH-MRI was 8.2±1.3 min. Myocardial hyperemia-weighted patterns in CE WH-MRI images were found in 41 of 43 (95.35%) participants. LGE was detected in 29 of 43 (67.44%) patients. Comparative analysis between CE WH-MRI and two-dimensional LGE sequences revealed myocardial involvement in 322 and 210 segments, respectively. Conclusions: This study established the viability of CE WH-MRI in identifying myocardial hyperemia-weighted patterns among patients with acute myocarditis. Additionally, through the combination of quantitative cardiac magnetic resonance (CMR) with the established LLC, CE WH-MRI could provide additive value in enhancing the accuracy of acute myocarditis diagnosis.
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