Foundation-Model-Driven Parkinson's Disease Auto Diagnosis Challenge

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Segmentation Scoring Methodology

1. Evaluation Metrics

For each brain region in both hemispheres (left and right), we calculate:

2. Weighting Scheme

Category Weights Description
Modality Weights QSM: 0.6
NM: 0.4
Relative importance of each imaging modality
QSM Region Weights CN: 1.0
Put: 1.0
GP: 1.0
STN: 1.2
SN: 1.5
RN: 1.1
DN: 1.0
Relative importance of each brain region in QSM
NM Region Weights SN: 2.0 Relative importance of brain region in NM
Metric Weights Dice: 0.7
Hausdorff: 0.3
Relative importance of each evaluation metric

3. Scoring Formula

The composite score for a team is calculated as:

CompositeScore = 0.6 × QSM_Score + 0.4 × NM_Score

QSM_Score = 1.0×CN + 1.0×Put + 1.0×GP + 1.2×STN + 1.5×SN + 1.1×RN + 1.0×DN
NM_Score = 2.0×SN

Where each region score (e.g., CN) is calculated as:
RegionScore = 0.7×Dice + 0.3×(1 - NormalizedHausdorff)
NormalizedHausdorff = Hausdorff / MaxPossibleHausdorff
(MaxPossibleHausdorff = 10)

4. Ranking Criteria

Teams are ranked by their composite score in descending order. The highest possible score is 9.8 (perfect segmentation in all regions).

Classification Scoring Methodology

Evaluation Metric

We use accuracy as the evaluation metric for the classification task. The result .csv file should contain the 0-1 predictions for all testing cases.

Submission method

1. Submission Instructions
📨 Method: Email submissions only.

Requirements:

2. Important Clarifications
A. Final Summary Publication
Selection Criteria: Based on technical innovation and test performance.

Top Teams:
B. Baseline Model Note
The provided baseline is for format reference only and does not include state-of-the-art methods.
You are not required to use it, but your outputs must match specified formats.

3. Action Required
Test submissions close on 2025/08/31 (2 attempts allowed).

For questions, contact us at pdcadxfoundation@163.com. Best of luck!

Submission File Structure

Please organize your files exactly as shown below:

Submission file structure

Figure 1: Required submission file structure

Important notes:

  • Maintain this exact folder hierarchy
  • All files must use the specified naming conventions