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. 2023 Oct 10;10:1255063. doi: 10.3389/fcvm.2023.1255063

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© 2023 Sun, Wang, Hu, Wu, Zhang, Liu, Lu and Li.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Delineation of MVO and peri-infarct zones. A 73-year-old patient with left anterior descending artery (LAD) occlusion was diagnosed by digital subtraction angiography (DSA) (upper row on the left). The red box with a dotted line refers to occlusive vessels. In CMR CE-SSFP cine images, epicardial and endocardial borders are delineated by green and red borders, respectively. The area of established microvascular occlusion (MVO) infarction (Blue arrows point to the dark area surrounded by the hyperintensity infarction zone and located at the same position within the cardiac wall on CE-SSFP cine image during the cardiac cycle.) was taken from late gadolinium enhancement (LGE) images. Patients without visible peri-infarct myocardium had strain measurements in the infarcted and remote zones and separately in a 12° sector circumferentially adjacent to either side of the infarct (centre of bottom row). The bull's eye map showed segmental analysis within the 16-segment model (bottom row on the right). DSA, digital subtraction angiography; LAD, left anterior descending artery; LGE, late gadolinium enhancement; LV, left ventricular; LCX, left circumflex artery; LM, left main; MVO, microvascular occlusion; S, branch of the interventricular septum.