Between group I (echocardiographic findings of thrombus) and group II (without findings of thrombus by echocardiography), there were significant differences in left atrial diameter (p<0.05), left atrial spontaneous echo contrast (p<0.001), Wilkins score (p<0.005), significant differences were also reported in the ratio of patients with stroke history (p<0.05), time from detection of disease (p<0.05), BMI (p<0.05) and the presence of atrial fibrillation (p<0.05).