| High risk |
- Severe LV dysfunction (EF <35%)
|
- Stress-induced large perfusion defect (particularly if anterior)
|
- Stress-induced multiple perfusion defects of moderate size (>10% total reversible myocardium)
|
- Large fixed defect with LV dilation or increased lung uptake (thallium-201)
|
- Stress-induced moderate perfusion defect with LV dilation or increased lung uptake (thallium-201)
|
| Intermediate risk |
- Mild to moderate resting LV dysfunction (EF 35 to 49%)
|
- Moderate stress-induced perfusion defect without LV dilation or increased lung uptake
|
| Low risk |
- Normal LV systolic function
|
- Normal or small myocardial perfusion defect at rest or with stress
|
