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Radiol Artif Intell2026;8(3):e250603.May 1, 2026Journal Article

The Ischemic Stroke Lesion Segmentation Challenge (ISLES)'24 Dataset: A Multimodal Stroke Imaging Dataset with Hyperacute CT, Acute Postinterventional MRI, and 3-month Clinical Outcomes.

Evamaria Olga Riedel1, Ezequiel de la Rosa2, The Anh Baran1, Moritz Hernandez Petzsche1, Hakim Baazaoui3, Kaiyuan Yang2, Fabio Antonio Musio2,4, Houjing Huang2, David Robben5, Joaquin Oscar Seia6, Roland Wiest7,8, Mauricio Reyes9,10, Ruisheng Su11, Claus Zimmer1, Tobias Boeckh-Behrens1, Maria Berndt1, Bjoern Menze2, Daniel Rueckert12,13, Benedikt Wiestler1,14,15, Susanne Wegener3,16, Jan Stefan Kirschke1
1Department of Diagnostic and Interventional Neuroradiology, School of Medicine and Health, TUM Klinikum Rechts der Isar, Technical University of Munich, Ismaninger Strasse 22, Munich 81675, Germany.
2Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland.
3Department of Neurology, University Hospital of Zurich and University of Zurich, Zurich, Switzerland.
4Center for Computational Health, Zurich University of Applied Sciences, Zurich, Switzerland.
5icometrix, Leuven, Belgium.
6Department of Computer Architecture and Technology, University of Girona, Girona, Spain.
7Support Center of Advanced Neuroimaging (SCAN), University Institute of Diagnostic and Interventional Neuroradiology, Inselspital, Bern, Switzerland.
8University Institute of Diagnostic and Interventional Neuroradiology, University Hospital Bern, Inselspital, University of Bern, Bern, Switzerland.
9ARTORG Center for Biomedical Research, University of Bern, Bern, Switzerland.
10Department of Radiation Oncology, University Hospital Bern, University of Bern, Switzerland.
11Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.
12Chair for AI in Healthcare and Medicine, Technical University of Munich (TUM) and TUM University Hospital, Munich, Germany.
13Department of Computing, Imperial College London, London, United Kingdom.
14TranslaTUM - Central Institute for Translational Cancer Research, Technical University of Munich, Munich, Germany.
15AI for Image-Guided Diagnosis and Therapy, School of Medicine and Health, Technical University of Munich, Munich, Germany.
16Department of Neurology, University Hospital Zurich, Zurich, Switzerland.
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