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. 2020 Sep 11;6(1):116–118. doi: 10.1001/jamacardio.2020.4916

Table. Demographic Features and Echocardiographic and Cardiovascular Magnetic Resonance Parameters in Competitive Athletes Recovering From Coronavirus Disease 2019a.

Athlete No. Sex Symptoms Time CMR performed after positive test result, d Echocardiography, mL/m2 CMR, % Native T1, ms ECV, % Maximal T2, ms, (AHA segments) LGE (pattern/AHA segments) CMR (updated Lake Louise Criteria)
LVEDV RVEDV LVEF RVEF
1 Male No 21 Not done Not done 60 49 1034 21 51 (9) Yes (RV insertion; 9) Normal
2 Male No 22 51 46 56 59 964 24 48 (9) Yes (patchy; 6, 8) Normal
3 Male No 22 65 60 60 64 953 22 48 (10) Yes (patchy, 5) Normal
4 Male No 15 65 48 59 54 905 20 48 (9) Yes (linear; 8, 12) Normal
5 Male No 17 66 57 55 54 994 24 55 (9) Yes (epicardial; 3, 9) Myocarditis
6 Male Yes 23 73 52 61 62 947 26 63 (3, 9) Yes (patchy; 3, 9) Myocarditis
7 Male Yes 53 66 64 53 52 991 25 49 (7, 9) Yes (linear, patchy; 8, 9, 12) Normal
8 Male No 20 76 36 56 53 963 17 51 (10) No Normal
9 Male Yes 18 60 71 56 52 964 24 52 (7) Yes (patchy; 3, 9) Normal
10 Male Yes 11 67 70 61 58 929 25 58 (8, 9) Yes (patchy; 2, 3, 8, 9) Myocarditis
11 Male No 23 57 49 63 60 987 22 53 (7) No Normal
12 Male Yes 28 72 59 50 53 966 28 53 (7, 8) No Normal
13 Male No 28 81 52 33 53 925 25 53 (7, 8) No Normal
14 Male No 11 46 41 65 54 989 24 53 (8) No Normal
15 Male No 48 56 51 59 57 1003 25 53 (7) Yes (RV insertion; 9) Normal
16 Female Yes 23 68 50 64 58 1001 26 52 (8) No Normal
17 Female Yes 23 55 56 57 60 1030 28 48 (10) No Normal
18 Female No 21 53 35 65 66 1008 25 48 (9) No Normal
19 Female Yes 17 60 32 63 57 978 26 53 (8) No Normal
20 Female No 31 62 51 58 59 1002 25 52 (8) No Normal
21 Female Yes 31 52 40 60 60 946 28 53 (8) No Normal
22 Female Yes 30 67 49 59 64 1000 27 52 (8) Yes (linear; 12) Normal
23 Female Yes 30 58 57 57 55 964 26 53 (11) No Normal
24 Female Yes 26 52 49 55 57 1010 30 53 (10) No Normal
25 Female No 31 56 36 56 56 1027 28 50 (7) No Normal
26 Male No 12 80 44 60 53 969 21 61 (8) Yes (linear; 8, 9) Myocarditis

Abbreviations: AHA, American Heart Association; CMR, cardiovascular magnetic resonance imaging; ECV, extracellular volume fraction; EDV, end-diastolic volume; EF, ejection fraction; LGE, late gadolinium enhancement; LV, left ventricular; RV, right ventricular.

a

Symptoms refer to symptoms during short-term infection. Echo volumes were calculated by 3-dimensional method. Cardiovascular magnetic resonance imaging–derived left and right ventricular volumes and function were measured from contiguous short-axis cine images using semiautomated software for endocardial segmentation using endocardial and epicardial contours at end systole and end diastole per standard protocol. Cardiovascular magnetic resonance imaging–derived myocardial T1 and T2 mapping and ECV were done per standard guidelines. Mean (SD) native T1 less than 999 (31) milliseconds, native T2 of less than 53 milliseconds, and ECV of less than 29% were considered normal per institutional protocol based on phantom and human volunteer experiments. T2 and LGE were only considered significant if seen in 2 orthogonal planes.