CHALLENGES

Acronym	Event Name	Theme	Day/Time	Point of Contact
AutoPET	Automated Lesion Segmentation in Whole-Body PET/CT		Sept. 27	Thomas Kuestner
BIC-MAC	Big Cross-Modal Attenuation Correction Challenge		Sept. 27	Christian Hinge
BIG-MRI	Breast Imaging Group MRI Challenge	Breast Imaging	Sept. 27	Nika Rasoolzadeh
CARE	Comprehensive Analysis & computing of REal-world medical images		Sept. 27	Xiahai Zhuang
EchoRisk	AI for Cardiac Function Estimation, Assessment & Early Prediction of Therapy-Induced Cardiotoxicity from Echocardiography	Cardiac Imaging 1	Sept. 27	Kostas Marias
EndoVis	Endoscopic Vision Challenge 2026	Computer Assisted Interventions (CAI) 1	Sept. 27	Stefanie Speidel
FoundUS	Foundation Model Challenge for Ultrasound Biometry	Foundation Models (FMs) 2	Sept. 27	Jieyun Bai
ISLES	Ischemic Stroke Lesion Segmentation Challenge	Brain Abnormalities 1	Sept. 27	Ezequiel de la Rosa
MAMA-Synth	Synthesizing Virtual Contrast-Enhancement in Breast MRI	Breast Imaging	Sept. 27	Richard Osuala
MedReason	Benchmarking Medical Multimodal Large Language Models	Large Multimodal Models (LMMs)	Sept. 27	Hongwei Bran Li
MultiSAT	MultiBypass Surgical Action Triplet Challenge 2026	Computer Assisted Interventions (CAI) 1	Sept. 27	Saurav Sharma
MVAA	Mitral Valve Anatomy Analysis Using Multimodal Imaging Data		Sept. 27	Jieyun Bai
ODIN-challenge	Multimodal Text Report Generation for Oral and Dental Image Analysis	Dental Imaging	Sept. 27	Federico Bolelli
PENGWIN	Peripelvic Fracture Segmentation and Reduction Planning Challenge		Sept. 27	Yanzhen Liu
REG^2	Pathologist Reasoning-Guided Report Generation Challenge	Computational Pathology 1 (ESDIP-ASDP)	Sept. 27	Sangjeong Ahn
ReXGrounding	Grounding Free-Text Findings to 3D CT Segmentations		Sept. 27	mohammed baharoon
STS	The 4th Semi-supervised Teeth Segmentation Challenge on Metal Artifact Reduction and Beyond	Dental Imaging	Sept. 27	Yaqi Wang
TopAneu	Multimodal Vessel-Specific Intracranial Aneurysm Classification and Segmentation Challenge	Brain Abnormalities 1	Sept. 27	Ruisheng Su
TopBrain	Segmentation Challenge for Whole Brain Vessel Anatomy: Version 2 with More Labels and Clinical Focus	Brain Abnormalities 1	Sept. 27	Kaiyuan Yang
TREAT-MMTB	Transformative Research and Efficient AI Technologies for Multimodal Management of Tuberculosis	Low Resource Environments	Sept. 27	Seungjoo Park
UUSIVC2026	Universal Ultrasound Image & Video Analysis Challenge: Multi-Organ Classification and Segmentation Across B-mode and Contrast-Enhanced Ultrasound	Breast Imaging	Sept. 27	Qiang Huang
AIMS-TBI	Automated Identification of Moderate-Severe Traumatic Brain Injury Lesions	Brain Abnormalities 2	Oct. 1	Emily Dennis
AMPLIFAI	Annotated Multi-Phase Liver Imaging For Artificial Intelligence		Oct. 1	Florence Doo
ATM	Airway Tree Modeling for Endobronchial Surgery	Computer Assisted Interventions (CAI) 3	Oct. 1	Yun Gu
BraTS	BraTS 2026 Cluster of Challenges	Brain Abnormalities 2	Oct. 1	Spyridon Bakas
CATHACTION	Endovascular Intervention Tool Segmentation and Collision Detection	Computer Assisted Interventions (CAI) 3	Oct. 1	Baoru Huang
CHIMERA-Agent	Combining HIstology, Medical imaging and molEcular data for medical pRognosis and diAgnosis Agent	Agentic AI	Oct. 1	Nadieh Khalili
CMRSeg	Universal Multi-Sequence, Multi-Center and Multi-View CMR Segmentation and Quantification Challenge	Cardiac Imaging 2	Oct. 1	Taiping Qu
CMRxRecon2026	Towards Clinical Adoption of Ultra-Fast 4D Flow MRI	Cardiac Imaging 2	Oct. 1	H.Li
CohortX	Extracting Executable Cohort Definitions for Medical Imaging Research		Oct. 1	Houcemeddine Turki
DA-OCT	Domain adaptation for solving multivendor retinal optical coherence tomography dependence in deep learning models		Oct. 1	Julia Owen
DoseRAD2026	Real-time dose calculation in radiotherapy	Radiotherapy	Oct. 1	Guillaume Landry
FIDO	Fusion for Intelligent Decision-support in Ophthalmology	Opthalmic Imaging	Oct. 1	Shervin Dehghani
FLARE	Fast, Low-resource, Accurate, Robust, and Effectual Medical Image Analysis	Efficient AI	Oct. 1	JUN MA
FOMO26	Foundation Model Challenge for Brain MRI.	Foundation Models (FMs) 1	Oct. 1	Stefano Cerri
GAVE2	Generalized Analysis of Vessels in Eye Edition 2	Opthalmic Imaging	Oct. 1	Huihui Fang
HEADLINE	A Benchmark for Vision–Language Models in Head CT Reporting	Vision Language Models (VLMs)	Oct. 1	Martha Foltyn-Dumitru
HECKTOR	HEad and neCK TumOR Lesion Segmentation, Staging and Prognosis using Multimodal Data		Oct. 1	Shahad Hardan
Learn2Reg	Learn2Reg		Oct. 1	Junyu Chen
LISA	Low field pediatric brain magnetic resonance Image Segmentation and quality Assurance	Pediatrics	Oct. 1	Natasha Lepore
MRIxFields	A Generalizable Cross-Field MRI Translation and Harmonization Challenge		Oct. 1	Chengyan Wang
ORena-FOCUS	Foreign Object Contextual Understanding for Safe Surgical AI	Computer Assisted Interventions (CAI) 5	Oct. 1	Lena Maier-Hein
SELMA3D	Self-supervised learning for 3D light-sheet microscopy image segmentation	Computational Pathology 2	Oct. 1	Ying Chen
SynthOCT	Digital Phantoms Simulation for Physics-Based Scans Synthesis in Optical Coherence Tomography		Oct. 1	Lev Matveev
VLM3D	Vision-Language Modeling in 3D Medical Imaging	Vision Language Models (VLMs)	Oct. 1	Ibrahim Ethem Hamamci