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The Radiological Society of North America Intracranial Aneurysm Detection (RSNA-ICA) dataset is a collection of over 4,000 CT brain scans annotated by a cohort of over 40 volunteer radiologists from RSNA and the American Society of Neuroradiology to show the presence and location of intracranial aneurysms. It also includes a set of about 200 imaging studies that are annotated with AI-generated segmentations highlighting abnormalities. The imaging data was provided by 18 institutions. Initially compiled in 2025 for the RSNA Intracranial Aneurysm Detection AI Challenge hosted on Kaggle competition platform (https://www.kaggle.com/competitions/rsna-intracranial-aneurysm-detection), it represents the largest publicly available collection of its kind. Additional information on the dataset and how to make use of it is provided in a forthcoming Data Resource Publication listed below, as well as on the Kaggle competition website, which also provides access to models developed during the competition.
The dataset may be updated with additional or corrected data on a need-to-update basis.
You may access and use these de-identified imaging datasets and annotations (“the data”) for non-commercial purposes only, including academic research and education, as long as you agree to abide by the following provisions: Not to make any attempt to identify or contact any individual(s) who may be the subjects of the data. If you share or re-distribute the data in any form, include a citation to the “Radiological Society of North America Intracranial Aneurysm Detection (RSNA-ICA) Dataset, July 2025” [https://doi.org/10.1148/dataset.ica.2025].
https://github.com/RSNA/AI-Challenge-Data/wiki/RSNA-Intracranial-Aneurysm-Detection-Dataset
Radiological Society of North America (https://www.rsna.org/)
See all datasets managed by Radiological Society of North America (https://www.rsna.org/).
RSNA Intracranial Aneurysm Detection Dataset (RSNA-ICA) was accessed on DATE from https://registry.opendata.aws/rsna-intracranial-aneurysm-detection-dataset.
arn:aws:s3:::intracranial-aneurysm-detectionus-west-2