MRI volumetric morphometry in vascular parkinsonism. - Laboratoire Charles Coulomb (L2C) Accéder directement au contenu
Article Dans Une Revue Brain - A Journal of Neurology Année : 2017

MRI volumetric morphometry in vascular parkinsonism.

Vincent Dunet
Jeremy Deverdun
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Celine Charroud
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Emmanuelle Le Bars
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François Molino
Sophie Menjot de Champfleur
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Florence Maury
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Mahmoud Charif
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Xavier Ayrignac
Pierre Labauge
Giovanni Castelnovo
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Frederic Pinna
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Alain Bonafe
Christian Geny
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Résumé

Vascular parkinsonism is a difficult clinical differential diagnosis in elderly subjects. We aimed at identifying morphometric markers in the brain of elderly patients with vascular parkinsonism (VP) compared with age-matched patients with Parkinson's disease (PD) and healthy controls. In this multicenter prospective study, 46 patients (80 ± 5 years old; male 32) with parkinsonism (32 PD and 14 VP) and 29 controls (mean age 78 ± 3 years; male 21) underwent brain MRI on a 3-T scanner including T1 MPRAGE and FLAIR sequences. Volumetric morphometry was obtained using Morphobox software and compared between patients and controls. Receiver operating characteristics curve analysis with computation of area under the curve (AUC) was used to compare diagnostic values. Caudate nucleus and white matter hyperintense lesions (WMHL) volumes appeared significantly higher in patients with VP. Normalized caudate volume of at least 0.67% and normalized WMHL of at least 1.11% identified patients with VP from patients with PD and controls with similar performances (p > 0.25). Caudate nucleus and WMHL volumes were positively correlated (ρ = 0.74, p < 0.0001), suggesting vascular disease related remodelling in elderly subjects. Caudate nucleus and WMHL MRI volumes might be used as additional markers to help identify patients with VP in the initial workup of elderly subjects with parkinsonian symptoms.
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Dates et versions

hal-01724565 , version 1 (06-03-2018)

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Vincent Dunet, Jeremy Deverdun, Celine Charroud, Emmanuelle Le Bars, François Molino, et al.. MRI volumetric morphometry in vascular parkinsonism.. Brain - A Journal of Neurology , 2017, 264 (7), pp.1511-1519. ⟨10.1007/s00415-017-8561-5⟩. ⟨hal-01724565⟩
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