Unsupervised Deep Learning Architectures for Anomaly Detection in Brain MRI Scans

Brain imaging techniques, particularly magnetic resonance imaging (MRI), play a crucial role in understanding the neurocognitive phenotype and associated challenges of many neurological disorders, providing detailed insights into the structural alterations in the brain. Despite advancements, the lin...

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Detalles Bibliográficos
Autores: Malé, Jordi, Xirau Guardans, Victor, Fortea, Juan, Heuzé, Yann, Martínez-Abadías, Neus, Sevillano, Xavier
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:20.500.14342/6078
Acceso en línea:https://hdl.handle.net/20.500.14342/6078
https://doi.org/10.3233/FAIA240415
Access Level:acceso abierto
Palabra clave:Unsupervised Deep learning
Autoenders
Brain MRI scans
Anomaly detection
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Descripción
Sumario:Brain imaging techniques, particularly magnetic resonance imaging (MRI), play a crucial role in understanding the neurocognitive phenotype and associated challenges of many neurological disorders, providing detailed insights into the structural alterations in the brain. Despite advancements, the links between cognitive performance and brain anatomy remain unclear. The complexity of analyzing brain MRI scans requires expertise and time, prompting the exploration of artificial intelligence for automated assistance. In this context, unsupervised deep learning techniques, particularly Transformers and Autoencoders, offer a solution by learning the distribution of healthy brain anatomy and detecting alterations in unseen scans. In this work, we evaluate several unsupervised models to reconstruct healthy brain scans and detect synthetic anomalies.