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. 2022 Mar 10;4(2):e220019. doi: 10.1148/ryct.220019

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2022 by the Radiological Society of North America, Inc.

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Basal short-axis 1.5-T cardiac MR images demonstrate (A) subepicardial late gadolinium enhancement at the basal inferior and inferior lateral wall (red arrows), with corresponding (B) hyperintensity on T2-weighted image (orange arrows), (C) abnormal high regional native T1 (1123 msec, blue arrows [upper reference range, 960 msec]), and (D) abnormal high regional T2 (58 msec, green arrows [upper reference range, 51 msec]). These findings are in keeping with acute myocarditis based on the revised Lake Louise criteria. Global systolic function was impaired (left ventricular ejection fraction, 48%), with hypokinesis of the basal inferolateral wall. (E) Speckle-tracking echocardiography–based global longitudinal strain demonstrates reduced strain involving most basal segments (global longitudinal strain, −18%). — Basal short-axis 1.5-T cardiac MR images demonstrate (A) subepicardial late gadolinium enhancement at the basal inferior and inferior lateral wall (red arrows), with corresponding (B) hyperintensity on T2-weighted image (orange arrows), (C) abnormal high regional native T1 (1123 msec, blue arrows [upper reference range, 960 msec]), and (D) abnormal high regional T2 (58 msec, green arrows [upper reference range, 51 msec]). These findings are in keeping with acute myocarditis based on the revised Lake Louise criteria. Global systolic function was impaired (left ventricular ejection fraction, 48%), with hypokinesis of the basal inferolateral wall. (E) Speckle-tracking echocardiography–based global longitudinal strain demonstrates reduced strain involving most basal segments (global longitudinal strain, −18%).