1. Clinical relevance of brain atrophy subtypes categorization in memory clinics.
- Author
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Planche V, Bouteloup V, Mangin JF, Dubois B, Delrieu J, Pasquier F, Blanc F, Paquet C, Hanon O, Gabelle A, Ceccaldi M, Annweiler C, Krolak-Salmon P, Habert MO, Fischer C, Chupin M, Béjot Y, Godefroy O, Wallon D, Sauvée M, Bourdel-Marchasson I, Jalenques I, Tison F, Chêne G, and Dufouil C
- Subjects
- Aged, Cohort Studies, Female, Hippocampus pathology, Humans, Magnetic Resonance Imaging, Male, Alzheimer Disease classification, Alzheimer Disease pathology, Ambulatory Care Facilities, Atrophy pathology, Brain pathology, Memory Disorders classification
- Abstract
Introduction: The clinical relevance of brain atrophy subtypes categorization in non-demented persons without a priori knowledge regarding their amyloid status or clinical presentation is unknown., Methods: A total of 2083 outpatients with either subjective cognitive complaint or mild cognitive impairment at study entry were followed during 4 years (MEMENTO cohort). Atrophy subtypes were defined using baseline magnetic resonance imaging (MRI) and previously described algorithms., Results: Typical/diffuse atrophy was associated with faster cognitive decline and the highest risk of developing dementia and Alzheimer's disease (AD) over time, both in the whole analytic sample and in amyloid-positive participants. Hippocampal-sparing and limbic-predominant atrophy were also associated with incident dementia, with faster cognitive decline in the limbic predominant atrophy group. Lewy body dementia was more frequent in the hippocampal-sparing and minimal/no atrophy groups., Discussion: Atrophy subtypes categorization predicted different subsequent patterns of cognitive decline and rates of conversion to distinct etiologies of dementia in persons attending memory clinics., (© 2021 the Alzheimer's Association.)
- Published
- 2021
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