Pyramidal tract degeneration in multiple system atrophy: The relevance of magnetization transfer imaging
Identifieur interne : 002C36 ( Main/Exploration ); précédent : 002C35; suivant : 002C37Pyramidal tract degeneration in multiple system atrophy: The relevance of magnetization transfer imaging
Auteurs : Antonio José Da Rocha [Brésil] ; Antonio Carlos Martins Maia Jr. [Brésil] ; Carlos Jorge Da Silva [Brésil] ; Flávio Túlio Braga [Brésil] ; Nelson Paes Diniz Fortes Ferreira [Brésil] ; Orlando Graziani Povoas Barsottini [Brésil] ; Henrique Ballalai Ferraz [Brésil]Source :
- Movement Disorders [ 0885-3185 ] ; 2007-01-15.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Degeneration, Female, Humans, MRI, MSA, Magnetic Resonance Imaging, Magnetization, Male, Middle Aged, Multiple System Atrophy (complications), Multiple System Atrophy (pathology), Multiple System Atrophy (physiopathology), Multiple system atrophy, Nerve Degeneration (complications), Nerve Degeneration (pathology), Nerve Degeneration (physiopathology), Nervous system diseases, Nuclear magnetic resonance imaging, Parkinson Disease, Secondary (diagnosis), Parkinson Disease, Secondary (etiology), Parkinson Disease, Secondary (physiopathology), Parkinsonism, Pyramidal Tracts (pathology), Pyramidal tract, Reflex, Abnormal (physiology), Severity of Illness Index, cortico‐spinal tract, magnetization transfer imaging.
- MESH :
- complications : Multiple System Atrophy, Nerve Degeneration.
- diagnosis : Parkinson Disease, Secondary.
- etiology : Parkinson Disease, Secondary.
- pathology : Multiple System Atrophy, Nerve Degeneration, Pyramidal Tracts.
- physiology : Reflex, Abnormal.
- physiopathology : Multiple System Atrophy, Nerve Degeneration, Parkinson Disease, Secondary.
- Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Severity of Illness Index.
Abstract
The clinical features of multiple system atrophy (MSA) include four domains: autonomic failure/urinary dysfunction, Parkinsonism, cerebellar ataxia, and corticospinal tract dysfunction. Although the diagnosis of definite MSA requires pathological confirmation, magnetic resonance imaging (MRI) studies have been shown to contribute to the diagnosis of MSA. Although pyramidal tract dysfunction is frequent in MSA patients, signs of pyramidal tract involvement are controversially demonstrated by MRI. We evaluated the pyramidal involvement in 10 patients (7 women) with clinically probable MSA, detecting the presence of spasticity, hyperreflexia, and Babinski sign, as well as demonstrating degeneration of the pyramidal tract and primary motor cortex by MRI in all of them. Our article also discusses key radiological features of this syndrome. In MSA, pyramidal tract involvement seems to be more frequent than previously thought, and the clinicoradiological correlation between pyramidal tract dysfunction and degeneration may contribute to the understanding of the clinical hallmarks of MSA. MRI may also add information regarding the differential diagnosis of this syndrome. © 2006 Movement Disorder Society
Url:
DOI: 10.1002/mds.21229
Affiliations:
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Le document en format XML
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<term>Magnetic Resonance Imaging</term>
<term>Magnetization</term>
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<term>Multiple System Atrophy (complications)</term>
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<term>Multiple System Atrophy (physiopathology)</term>
<term>Multiple system atrophy</term>
<term>Nerve Degeneration (complications)</term>
<term>Nerve Degeneration (pathology)</term>
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<front><div type="abstract" xml:lang="en">The clinical features of multiple system atrophy (MSA) include four domains: autonomic failure/urinary dysfunction, Parkinsonism, cerebellar ataxia, and corticospinal tract dysfunction. Although the diagnosis of definite MSA requires pathological confirmation, magnetic resonance imaging (MRI) studies have been shown to contribute to the diagnosis of MSA. Although pyramidal tract dysfunction is frequent in MSA patients, signs of pyramidal tract involvement are controversially demonstrated by MRI. We evaluated the pyramidal involvement in 10 patients (7 women) with clinically probable MSA, detecting the presence of spasticity, hyperreflexia, and Babinski sign, as well as demonstrating degeneration of the pyramidal tract and primary motor cortex by MRI in all of them. Our article also discusses key radiological features of this syndrome. In MSA, pyramidal tract involvement seems to be more frequent than previously thought, and the clinicoradiological correlation between pyramidal tract dysfunction and degeneration may contribute to the understanding of the clinical hallmarks of MSA. MRI may also add information regarding the differential diagnosis of this syndrome. © 2006 Movement Disorder Society</div>
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<name sortKey="Ferreira, Nelson Paes Diniz Fortes" sort="Ferreira, Nelson Paes Diniz Fortes" uniqKey="Ferreira N" first="Nelson Paes Diniz Fortes" last="Ferreira">Nelson Paes Diniz Fortes Ferreira</name>
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