Level | Auto-segmentation performance | > 10 slices (percentage to be modified) | 3–10 slices (slice number to be modified) | < 3 slices (slice number to be modified) |
---|---|---|---|---|
1 | Auto-segmentation is not recommended | 20%–100% | > 3 | 3 |
2 | Many manual modifications are required after auto-segmentation | 10%–20% | 2–3 | 2 |
3 | Some manual modifications are required after auto-segmentation | 0–10% | 1 | 1 |
4 | Auto-segmentation can completely replace manual delineation | 0 | 0 | 0 |