CHALLENGES

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