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Combination of diffusion tensor and functional magnetic resonance imaging during recovery from the vegetative state

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dc.creator Fernández-Espejo, Davinia
dc.creator Junqué i Plaja, Carme, 1955-
dc.creator Cruse, Damian
dc.creator Bernabeu, Montserrat
dc.creator Roig-Rovira, Teresa
dc.creator Fàbregas Julià, Neus
dc.creator Rivas, Eva
dc.creator Mercader, José M.
dc.date 2010-09-21T13:19:41Z
dc.date 2010-09-21T13:19:41Z
dc.date 2010
dc.date.accessioned 2024-12-16T10:25:21Z
dc.date.available 2024-12-16T10:25:21Z
dc.identifier 1471-2377
dc.identifier http://hdl.handle.net/2445/13754
dc.identifier 579565
dc.identifier 20815871
dc.identifier.uri http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/19271
dc.description Background: The rate of recovery from the vegetative state (VS) is low. Currently, little is known of the mechanisms and cerebral changes that accompany those relatively rare cases of good recovery. Here, we combined functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) to study the evolution of one VS patient at one month post-ictus and again twelve months later when he had recovered consciousness. Methods fMRI was used to investigate cortical responses to passive language stimulation as well as task-induced deactivations related to the default-mode network. DTI was used to assess the integrity of the global white matter and the arcuate fasciculus. We also performed a neuropsychological assessment at the time of the second MRI examination in order to characterize the profile of cognitive deficits. Results: fMRI analysis revealed anatomically appropriate activation to speech in both the first and the second scans but a reduced pattern of task-induced deactivations in the first scan. In the second scan, following the recovery of consciousness, this pattern became more similar to that classically described for the default-mode network. DTI analysis revealed relative preservation of the arcuate fasciculus and of the global normal-appearing white matter at both time points. The neuropsychological assessment revealed recovery of receptive linguistic functioning by 12-months post-ictus. Conclusions: These results suggest that the combination of different structural and functional imaging modalities may provide a powerful means for assessing the mechanisms involved in the recovery from the VS.
dc.format 10 p.
dc.format application/pdf
dc.language eng
dc.publisher BioMed Central
dc.relation Reproducció del document publicat a http://dx.doi.org/10.1186/1471-2377-10-77
dc.relation BMC Neurology 2010, 10:77
dc.relation http://dx.doi.org/10.1186/1471-2377-10-77
dc.rights cc-by (C) Fernandez-Espejo et al., 2010
dc.rights http://creativecommons.org/licenses/by/2.0
dc.rights info:eu-repo/semantics/openAccess
dc.source Articles publicats en revistes (Psicologia Clínica i Psicobiologia)
dc.subject Neurologia
dc.subject Mort cerebral
dc.subject Neurology
dc.subject Brain death
dc.title Combination of diffusion tensor and functional magnetic resonance imaging during recovery from the vegetative state
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion


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