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. 2021 Dec 23;8:795195. doi: 10.3389/fcvm.2021.795195

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Copyright © 2021 Seraphim, Knott, Augusto, Menacho, Tyebally, Dowsing, Bhattacharyya, Menezes, Jones, Uppal, Moon and Manisty.

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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Rubidium-82 PET-CT with adenosine stress in an 86-year-old male with previous coronary artery bypass grafting. PET-CT images (A,B) obtained at stress and rest demonstrate a reversible perfusion defect in the mid to apical anterior segments extending into the apex. Cardiac hybrid imaging with three-dimensional fusion of PET-CT with CT coronary angiography enables localization of ischaemia to a coronary artery territory (C). CT coronary angiography reveals a patent LIMA to LAD graft with good distal opacification, and obstructive plaques in the proximal and mid segments of an intermediate artery (white arrow), responsible for the reversible perfusion defect demonstrated.