SynthRAD2025
Start Date: Dec 1st, 2024 00:00
End Date: Sep 27th, 2025 21:41
URL: https://synthrad2025.grand-challenge.org/
Location: Online, Europe
SynthRAD2025 Grand Challenge
This challenge aims to provide the first platform offering public data and evaluation metrics to compare the latest developments in sCT generation methods. The accepted challenge design approved by MICCAI can be found at [link]. A type 2 challenge will be run, where the participant needs to submit their algorithm packaged in a docker container for testing. Two tasks are defined:
- Task 1: MRI-to-sCT generation to facilitate MRI-only and MRI-based adaptive radiotherapy.
- Task 2: CBCT-to-sCT generation to facilitate CBCT-based adaptive radiotherapy.
Dataset
A multi-center dataset is provided, balancing training, validation and test cases to evaluate the methods on different MRI and CBCT devices and sequences/acquisition settings for head-and-neck, thorax and abdomen cases. Data will be provided by five university medical centers (UMC Utrecht, UMC Groningen, Radboud Nijmegen, LMU University Hospital Munich and University Hospital Cologne), which will contain around 65/10/25 (train/validation/test) MRI or CBCT and CT pairs per tumor entity of patients undergoing radiotherapy at the respective institute.
In total, 900-1200 paired MRI-CT and 1500 CBCT-CT sets are provided, along with a body mask that will be considered for evaluation and may be used during inference. The target CT of the validation and test set will not be shared with the participants to avoid optimistic biases. Input data of the validation and test set will be accessible by the algorithm submitted by the participants, but not directly available to the teams, until the end of the challenge.
Participation
Challenge participants may choose to participate either in Task 1 or 2 or both. For each task, algorithms should be provided for all the anatomical sites. The participants may decide whether to provide one or more models per task. The center of origin of the data will not be disclosed at a case level.
The evaluation code used to rank the challenge is shared at https://github.com/SynthRAD2025. After completion, the leaderboard will remain open for submission, ensuring that future methods may still be evaluated up to 2030.
We envision that this challenge will enable a fair and open evaluation of different approaches to synthetic CT generation from MRI and CBCT.
We hope you may have fun taking part in this challenge!
The organizers