- 1
Get the case
A de-identified CT and structure set, as one archive. Plan it in your own system.
- 2
Plan it
The criteria are published before anyone plans and do not change mid-challenge. Below they are also written as entries for your own optimizer.
- 3
Submit the dose
Upload the RTDOSE. It is scored automatically against the criteria, and you are told when it lands.
Plan this case as
Cure is the goal — cover the target, then spare what you can.
Scoring criteria
80 pointsHow a number becomes points. A metric at or past Ideal earns its full points. At the Minimum it earns none, and between the two it is linear — halfway between minimum and ideal is half the points. Worse than the minimum is zero for that line, never negative, and the rest of the plan still scores. Breaching a hard constraint is different: the plan keeps its number and leaves the ranking. How scoring works in full →
Target
| Metric | Minimum | Ideal | Points |
|---|---|---|---|
| PTV V100%on Tumor_c20 | ≥ 90 | ≥ 95 | 12 |
| PTV D95on Tumor_c20 | ≥ 95 | ≥ 100 | 8 |
| PTV Dmaxon Tumor_c20 | ≤ 140 | ≤ 125 | 5 |
Organs at risk
| Metric | Minimum | Ideal | Points |
|---|---|---|---|
| Lungs V20Gyon LLung_c20 + RLung_c20 | ≤ 15 | ≤ 8 | 12 |
| Lungs meanon LLung_c20 + RLung_c20 | ≤ 8 | ≤ 4 | 8 |
| SpinalCord D0.03ccon Cord_c20 | ≤ 18 | ≤ 12 | 10 |
| Esophagus D0.03ccon Esophagus_c20 | ≤ 27 | ≤ 20 | 6 |
| Heart D0.03ccon Heart_c20 | ≤ 30 | ≤ 22 | 6 |
Plan quality
| Metric | Minimum | Ideal | Points |
|---|---|---|---|
| CIon Tumor_c20 | ≤ 1.4 | ≤ 1.05 | 5 |
| GIon Tumor_c20 | ≤ 6 | ≤ 3.5 | 5 |
| HIon Tumor_c20 | ≤ 0.45 | ≤ 0.2 | 3 |
Hard constraints
Breaching any of these removes the plan from the ranking, whatever it scored.
- PTV V54Gy < 85%
- SpinalCord D0.03cc > 20 Gy