Table 1.
Baseline characteristics.
Table 2.
Baseline echocardiographic parameters.
Fig 1.
Layer–specific circumferential strain (Endo/Epi ratio) in the myocarditis and MI groups.
Data are shown as Tukey boxplot and raw data, taking into account normal references values for age, p = 0.144.
Table 3.
STE data.
Fig 2.
(a) ROC curve of the GLS average [%] for the diagnosis of clinically suspected myocarditis. The AUC was 0.737 (standard error = 0.061, 95% confidence interval 0.795–0.954). It shows that the sensitivity and specificity of the GLS is adequate in statistics (b) Global longitudinal strain [%] in the myocarditis and MI groups including normal reference of strain. Data are shown as Tukey boxplot, (p = 0.000).
Fig 3.
Scatter plot of a strong correlation between GLS average [%] and left ventricular ejection fraction [%] in whole population (a), myocarditis group (b) and myocardial infarction group (c).
Fig 4.
Example of the longitudinal strain bull’s eye plot derived from two-dimensional speckle tracking imaging in patients admitted with an initial diagnosis of anterolateral STEMI and with the final diagnosis of myocardial infarction resulted from occlusion of the left anterior descending artery (a) and acute myocarditis (b).
Fig 5.
Global circumferential strain (average) [%] concerning normal reference values.
Tukey boxplot (mean ± SD).
Fig 6.
Global circumferential endocardial and epicardial strain in the myocarditis and MI groups.
Data are shown as Tukey boxplots, taking into account normal reference values for age, p<0.05 (a) Endocardial GCS [%]. (b) Epicardial GCS [%].