Fig. 3

Microinfarction in COVID-19 infection. Patterns of LGE (in brackets the features of each): (A) Infarct (bright, subendocardial, territorial); B Non-ischemic (mid myocardial, less bright, more diffuse); C Dual pathology (both a and b); D Microinfarcts (bright spots—e.g. a gram or so- of LGE often but not exclusively subendocardial and potentially in more than one territory); E Chronic, likely pre-existent disease (only 4 cases total) and non-specific (E1: Dilated cardiomyopathy, E2: amyloidosis, E3) Non-specific (unequivocal LGE that both cannot be considered normal and has insufficient volume to assign with certainty to any other category). F Nonspecific (unequivocal LGE that cannot be considered normal and has insufficient volume to assign with certainty to any other category). G Nonsignificant LGE (minor right ventricle insertion point LGE alone; trabecular LGE alone; or septal perforator LGE alone, which can be considered normal variant) [as originally published in the COVID-HEART Study by Artico et al. [68]