Classification | Rest | Stress | Implication |
---|---|---|---|
*Low dose dobutamine; if wall motion deteriorates at higher level of stress viable myocardium is supplied by coronary artery with significant stenosis (biphasic response). | |||
Normal | Normal | Hyperdynamic | No ischaemia |
Ischaemia | Normal | Abnormal | Ischaemia induced |
Scar | Abnormal | No change | Post myocardial infarct, |
No inducible ischaemia | |||
Viability | Abnormal | Improvement* | Hibernation, stunning |