- CAD-RADS categories are based on stenosis severity and plaque burden.
| Degree of luminal diameter stenosis | Terminology |
|---|---|
| 0% | No visible stenosis |
| 1–24% | Minimal stenosis |
| 25–49% | Mild stenosis |
| 50–69% | Moderate stenosis |
| 70–99% | Severe stenosis |
| 100% | Occluded |
| Terminology | Overall plaque burden |
|---|---|
| P1 | Mild amount of plaque |
| P2 | Moderate amount of plaque |
| P3 | Severe amount of plaque |
| P4 | Extensive amount of plaque |