Diagnostic Algorithm Used to Identify Patients Suitable for Direct PET MPI on the Basis of Their Pretest Likelihood of CAD or Ischemia (pCAD)
| pCAD | Diagnostic test |
|---|---|
| 0–10 | Reassurance or treadmill electrocardiography |
| 11–70 | Stress PET MPI |
| 71–89 | Stress SPECT MPI |
| 90–100 | Direct coronary angiography |
Only patients with moderate pCAD (0.11–0.70) were routed to PET MPI as initially suggested by the econometric model of Patterson et al. (8). Patients with pCAD < 0.11 or > 0.70 were excluded from the study.