Fig. 1.

A. Comparison of RVPER and PSVC between subgroups of recovered COVID-19 patients and controls; Group A represents patients with cardiac abnormalities at admission; Group B represents patients without cardiac abnormalities. Right ventricular peak filling rate(RVPFR); Peak systolic velocity circumferential(PSVC). B. Myocardial edema and fibrosis of recovered COVID-19 patients in late convalescence; a,b. A common type COVID-19 without cardiac abnormalities. No edema or LGE was identified. c,d. A mild type COVID-19 patient with mid mitral valvular regurgitation at admission on echocardiography, but turned to normal on the day of CMR. Edema was found in the anterior, anterolateral, and anteroseptal walls, and there was no evidence of LGE. e,f. A severe type COVID-19 patient with ICU admission and elevated LDH at admission and the day of CMR, other tests were normal. Edema was identified in anterior, anterolateral wall of basal and middle segment, and intra-wall LGE was identified. g,h. A mild type COVID-19 patient with mild tricuspid valvular regurgitation at admission and the day of CMR on echocardiography. CMR showed myocardial edema and sub-epicardial LGE at the lateral wall.