Garcia Panach, J.; Lull Noguera, N.; Lull Noguera, JJ.; Ferri Domínguez, J.; Martínez, C.; Sopena, P.; Robles Viejo, M.... (2011). A Voxel-based analysis of FDG-PET in traumatic brain injury: regional metabolism and relationship between the thalamus and cortical areas. Journal of Neurotrauma. 28(9):1707-1717. doi:10.1089/neu.2011.1851
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/38236
Title:
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A Voxel-based analysis of FDG-PET in traumatic brain injury: regional metabolism and relationship between the thalamus and cortical areas
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Author:
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García Panach, Javier
Lull Noguera, Nuria
Lull Noguera, Juan José
Ferri Domínguez, Joan
Martínez, Carlos
Sopena, Pablo
Robles Viejo, Montserrat
Chirivella Garrido, Javier
Noé Sebastián, Enrique
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario de Aplicaciones de las Tecnologías de la Información - Institut Universitari d'Aplicacions de les Tecnologies de la Informació
Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada
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Issued date:
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Abstract:
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[EN] The objective was to study the correlations and the differences in glucose metabolism between the thalamus and cortical structures in a sample of severe traumatic brain injury (TBI) patients with different neurological ...[+]
[EN] The objective was to study the correlations and the differences in glucose metabolism between the thalamus and cortical structures in a sample of severe traumatic brain injury (TBI) patients with different neurological outcomes. We studied 49 patients who had suffered a severe TBI and 10 healthy control subjects using 18Ffluorodeoxyglucose positron emission tomography (18F-FDG-PET). The patients were divided into three groups: a vegetative or minimally-conscious state (MCS&VS) group (n = 17), which included patients who were in a vegetative or a minimally conscious state; an In-post-traumatic amnesia (In-PTA) group (n = 12), which included patients in PTA; and an Out-PTA group (n = 20), which included patients who had recovered from PTA. SPM5 software was used to determine the metabolic differences between the groups. FDG-PET images were normalized and four regions of interest were generated around the thalamus, precuneus, and the frontal and temporal lobes. The groups were parameterized using Student's t-test. Principal component analysis was used to obtain an intensity-estimated-value per subject to correlate the function between the structures. Differences in glucose metabolism in all structures were related to the neurological outcome, and the most severe patients showed the most severe hypometabolism. We also found a significant correlation between the cortico-thalamocortical metabolism in all groups. Voxel-based analysis suggests a functional correlation between these four areas, and decreased metabolism was associated with less favorable outcomes. Higher levels of activation of the cortico-cortical connections appear to be related to better neurological condition. Differences in the thalamocortical correlations between patients and controls may be related to traumatic dysfunction due to focal or diffuse lesions.
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Subjects:
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Cerebral metabolism
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Consciousness
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Functional imaging
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Head injury
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Image analysis
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Positron emission tomography
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Journal of Neurotrauma. (issn:
0897-7151
)
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DOI:
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10.1089/neu.2011.1851
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Publisher:
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Mary Ann Liebert
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Publisher version:
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http://doi.org/10.1089/neu.2011.1851
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Project ID:
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Official College of Physicians of Valladolid
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Thanks:
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A preliminary version of the manuscript presented here has
obtained the 2nd award of IV Convocatoria de los Premios de
Investigacio´n en Medicina del Colegio de Me´dicos de Valladolid
(IV edition of the Medical Research ...[+]
A preliminary version of the manuscript presented here has
obtained the 2nd award of IV Convocatoria de los Premios de
Investigacio´n en Medicina del Colegio de Me´dicos de Valladolid
(IV edition of the Medical Research Award of the Offi-
cial College of Physicians of Valladolid).
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Type:
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Artículo
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