Patient with previous anterior MI in 1999 treated with primary PCI on the LAD but also left main and RCA disease diagnosed, which required CABG after few months.
Old scar returns high backscatter signals which can be misinterpreted as tissue perfusion, while in fact thay have an opposite (absence of viability) meaning. In this case mid-apical septum clearly shows subendocardial scar and epicardial absence of perfusion, leading to conclusion of complete absence of viability here.
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