Abstract #2391

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

Félix Janelle^1,2, Monica Sean^2,3, Félix Dumais², Pascal Tétreault^2,3, Christian Bocti^1,4,5, 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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