Table 3.
Altered non-composite scoring method.
| SFA-Segment | Popliteal Segment | Infra-Popliteal Segment | ||
|---|---|---|---|---|
| Total stenosis length | CTO | Total stenosis length | Total stenosis length | CTO |
| 0 = mild or no significant (<50%) disease | 0 = no CTO | 0 = mild or no significant disease | 0 = mild or no significant (<50%) disease | 0 = no CTO |
| 1 = <1/3 (<10 cm) | 1 = <5 cm | 1 = <2 cm | 1 = <3 cm | 1 = single focal CTO (<3 cm not including TP trunk or target artery origin) |
| 2 = 1/3–2/3 (10–20 cm) | 2 = <1/3 (10 cm) | 2 = 2–5 cm | 2 = < 1/3 (<10 cm) | 2 = 3–10 cm (may include target artery origin, but not TP trunk) |
| 3 = >2/3 (>20 cm) | 3 = flush occlusion <20 cm | 3 = >5 cm | 3 = 1/3–2/3 (10–20 cm) | 3 = >1/3 (>10 cm) of length (may include target artery origin) |
| 4 = non-flush CTO 10–20 cm long | 4 = extending into trifurcation | 4 = >2/3 | 4 = any CTO of TP trunk | |
| 5 = SFA occlusion >20 cm | 5 = popliteal CTO | |||
SFA = superficial femoral artery, CTO = chronic total occlusion.