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Volume 18 Supplement 1

19th Annual SCMR Scientific Sessions

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Inter-center variability in the application of the Lake Louise Criteria to the diagnosis of myocarditis


An international Consensus Group established the proposed cardiovascular MR (CMR) criteria for diagnosis of acute myocarditis (Lake Louise Criteria) in 2009, consisting of 3 tissue markers: irreversible tissue injury on late gadolinium enhanced (LGE) images, edema on T2 STIR images and hyperemia on early enhanced (EE) images. The purpose of this study was to test the variability between the different CMR centers for the diagnosis of myocarditis based on Lake Louise Criteria.


CMR images of 20 patients (18 male, mean age 38 years) without known pre-existing cardiovascular disease with suspected acute myocarditis based on symptoms and clinical findings were analyzed. Fourteen patients of 20 were reported myocarditis positive by Lake Louise Criteria in the clinical read. LGE images, T2-STIR images and EE images were evaluated at 2 separate CMR centers by experienced readers at the respective corelabs. The patients were categorized as Lake Louise Criteria positive if 2 of the following 3 markers are positive: visual presence of non ischemic pattern focal LGE, visual presence of tissue edema and/or T2 ratio ≥ 2.0 on T2-STIR images, EE ratio ≥ 4.0 on EE images. The agreement of each marker and Lake Louise Criteria between 2 sites was evaluated.


The number of patients positive for each imaging marker at site 1 and site 2 respectively were: LGE 18 (90%), 15 (75%); T2-STIR 17 (85%), 12(60%); EE 12 (60%), 15 (75%). The agreement between 2 sites respectively were: LGE 17/20 (85%); T2 11/20 (55%); EE 17/20 (85%). Lake Louise Criteria was positive for 18 patients (90%) at site 1 and 15 patients (75%) at site 2. The agreement of Lake Louise Criteria between 2 sites was 17/20 (85%, kappa = 0.5).


Except for T2-weighted images, there was good agreement between two experienced centres when using the Lake Louise Criteria for the assessment of patients with suspected myocarditis. T1 mapping may be considered as an alternative to T2-weighted CMR and thus should be tested for inter-center variability in clinical settings.

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This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.

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Mikami, Y., Teixeira, T., Schüler, J. et al. Inter-center variability in the application of the Lake Louise Criteria to the diagnosis of myocarditis. J Cardiovasc Magn Reson 18 (Suppl 1), P249 (2016).

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