To support myocardial infarction (heart attack and damaged heart cells) there is marked ST elevation
in the same area is consistent with a recent MI. If it persists and is present
in an older
infarction, it is associated with a wall motion abnormality or an aneurysm.
Also, Lateral infarcts are associated with diagnostic Q waves in at least 2 of the lateral leads, I,AVL, V4,5,6.