Statistical analysis
Continuous variables are presented as mean ± standard deviation and categorical variables as numbers and percentage. The independent Student’s t-test was used to compare continuous variables. Categorical variables were analyzed using the χ2test. The sensitivity, specificity, negative predictive value, and positive predictive value of echocardiographic diagnosis of CM were calculated using the results of pathohistological examination as the gold standard. Accuracy was determined as the sum of true negative and positive tests divided by all tests. All statistical analyzes were performed using SPSS version 26.0 software. Values of p<0.05 were considered statistically significant.