Considering organizing a Challenge?
The AAPM Working Group on Grand Challenges (WGGC) is now accepting proposals for scientific Grand Challenges. WGGC will select one proposal for sponsorship, which includes organizational support and limited financial assistance.
The proposed Challenge should be structured to conclude prior to the Summer 2026 AAPM Annual Meeting. One member each from the organizing team, the winning participant team and the runner-up participant team will receive complimentary registration to attend the meeting in-person. Each will present during a dedicated Challenge session and be recognized during the Awards & Honors Ceremony.
Proposals should address timely and impactful problems in medical physics and align with the mission of the AAPM. At least one member of the organizing team must be an AAPM member in good standing.
Deadline for proposal submission is 5:00 PM EDT Friday, August 1 2025. Please email completed proposals to staff, Emily Townley. The proposal form is HERE.
- Challenge Organizer Guidance
- Questions? Contact: Emily Townley
Current Challenges
- Actinium-225 quantification and SPECT/CT reconstruction (ACTI-QUANT) Grand Challenge
- The Generalizable Dose Prediction for Heterogenous Multi-Cohort and Multi-Site Radiotherapy Planning (GDP-HMM) Grand Challenge
Previous Challenges
- Quantitative Intravoxel Incoherent Motion (IVIM) Diffusion MRI Reconstruction (IVIM-dMRI Recon)
- CT Metal Artifact Reduction (CT-MAR)
- Deep Generative Modeling for Learning Medical Image Statistics (DGM-Image Challenge)
- Understanding Time-Activity Curve and Time Integrated Activity Variations in Radiopharmaceutical Therapy Challenge (TACTIC)
- Deep Learning for Inverse Problems: Spectral Computed Tomography Image Reconstruction (DL-spectral CT)
- Standardizing Imaging and Reconstruction Protocols for Quantitative SPECT/CT Post Yttrium-90 Microspheres Delivery (SIRPRISE) Challenge
- Truth-Based CT (TrueCT) Reconstruction Challenge
- Digital Breast Tomosynthesis Lesion Detection Challenge: Phase 2 (DBTex2)
- Deep Learning for Inverse Problems: Sparse-View Computed Tomography image Reconstruction Challenge (DL-Sparse-View CT)
- Digital Breast Tomosynthesis Lesion Detection Challenge (DBTex)
- The MArkerless Lung Target Tracking CHallenge (MATCH)
- The Open Knowledge-Based Planning Challenge (OpenKBP)
- RT-MAC Challenge
- Computed Tomography Ventilation Imaging Evaluation 2019 (CTVIE19)
Announcements, Publications and Links of Interest
- DL-Sparse-View Challenge data and information
- DL-Spectral Challenge data and information
- CT-MAR Challenge Winners Announced
- DGM-Image Challenge Results
- TACTIC Challenge Results
- Digital Breast Tomosynthesis Lesion Detection (DBTex) Challenge Report Published
- DBTex Grand Challenge Submitted Detection Algorithms and Baseline Detection Methods
- Validation and Test Set Labels + Bounding Boxes
- NOTICE: The labels and lesion bounding boxes for the BCS-DBT dataset's validation and test sets were recently released, at https://www.cancerimagingarchive.net/collection/breast-cancer-screening-dbt/ under "Data Access".
- DL-spectral CT Winners Announced
- SIRPRISE Challenge Results
- TrueCT Challenge Winners
- BreastPathQ Challenge Images
- Low Dose CT Challenge Images and Information Available
- DL-Sparse-View CT Winners Announced
- BreastPathQ Challenge on Diagnostic World News