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Abstract #2391

Automatic detection of the anterior choroidal artery in TOF-MRA and its trajectory through the hippocampus and its sub-regions

Félix Janelle1,2, Monica Sean2,3, Félix Dumais2, Pascal Tétreault2,3, Christian Bocti1,4,5, and Kevin Whittingstall2
1Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC, Canada, 2Médecine nucléaire et radiobiologie, Université de Sherbrooke, Sherbrooke, QC, Canada, 3Anesthésiologie, Université de Sherbrooke, Sherbrooke, QC, Canada, 4Service de Neurologie, Département de Médecine, CHUS, Sherbrooke, QC, Canada, 5Clinique de la Mémoire et centre de recherche sur le Viellissement, CIUSSS de l'Estrie-CHUS, Sherbrooke, QC, Canada

Synopsis

The Anterior Choroidal Artery (AChA) is a small artery in the cerebral vasculature that perfuses the hippocampus. Its role in brain pathologies and cognitive decline is poorly understood. This could be due to the fact that there is no current standard method to analyse this artery in Time-of-Flight Magnetic Resonance Angiography (TOF-MRA). Here, we propose a fully automated approach for accurately localizing and quantifying the AChA in young healthy subjects. We then used this method to analyse the trajectory of the AChA through the hippocampus and its sub-regions.

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