Titre :

Cerebral hypoperfusion and hypometabolism detected by arterial spin labeling mri and fdg-pet in early-onset alzheimer's disease

Auteur(s) :

Verclytte, Sébastien [Auteur]
Lopes, Renaud [Auteur]
Lenfant, Pierre [Auteur]
Rollin, Adeline [Auteur]
Semah, Franck [Auteur]
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]
Troubles cognitifs dégénératifs et vasculaires - U1171
Leclerc, Xavier [Auteur]
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]
Troubles cognitifs dégénératifs et vasculaires - U1171
Pasquier, Florence [Auteur]
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]
Troubles cognitifs dégénératifs et vasculaires - U1171
Delmaire, Christine [Auteur]
Troubles cognitifs dégénératifs et vasculaires - U1171
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]
Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 [TCDV]

Titre de la revue :

Journal of neuroimaging . official journal of the American Society of Neuroimaging

Nom court de la revue :

J. Neuroimaging

Numéro :

26

Pagination :

207-212

Date de publication :

2016-03-01

ISSN :

1051-2284

Mot(s)-clé(s) en anglais :

positron emission tomography
early-onset Alzheimer''s disease
dementia
Alzheimer''s disease
Arterial spin labeling

Discipline(s) HAL :

Sciences du Vivant [q-bio]

Résumé en anglais : [en]

OBJECTIVE: Early-onset Alzheimer's disease (EOAD) is frequently associated with atypical clinical presentations and its early detection remains a challenging issue. In this study, we used arterial spin labeling (ASL), a ...
Lire la suite >OBJECTIVE: Early-onset Alzheimer's disease (EOAD) is frequently associated with atypical clinical presentations and its early detection remains a challenging issue. In this study, we used arterial spin labeling (ASL), a noninvasive perfusion MRI sequence, and [(18)F]-FDG-PET to detect the perfusion and metabolic features in patients with EOAD. METHODS: All patients were investigated in the French reference center for young-onset dementia and were assessed by MRI, including a pseudo-continuous ASL (pCASL) sequence, and [(18)F]-FDG-PET. Quantitative analyses and intermodality comparison with correlation analysis were made after data processing including correction of partial volume effects, cortical projection, and specific intensity normalization. RESULTS: We prospectively included 37 patients with EOAD with a mean age of 58.3 years. The areas of most severe hypoperfusion detected with ASL were located in the parietal lobes, the precuneus, the right posterior cingulate cortex, and the frontal lobes (P < .05). The areas of lowest glucose metabolism detected by [(18)F]-FDG-PET were identified in the temporoparietal cortex and the precuneus (P < .05). Hypometabolic regions were more extensive than hypoperfused regions on ASL maps whereas ASL highlighted alterations in the frontal lobes without apparent hypometabolism on [(18)F]-FDG-PET maps. CONCLUSIONS: ASL and [(18)F]-FDG-PET detected pathological areas of similar distribution mainly located in the inferior parietal lobules and local zones in the temporal cortex in patients with EOAD. Our preliminary study showed that ASL and [(18)F]-FDG-PET may have a complementary role in combination with structural MRI for the assessment of suspected EOAD.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CHU Lille
CNRS
Inserm
Université de Lille

Collections :

• Lille Neurosciences & Cognition (LilNCog) - U 1172

Équipe(s) de recherche :

Troubles cognitifs dégénératifs et vasculaires

Date de dépôt :

2019-11-27T13:33:48Z