Use of the Putamen/Caudate Volume Ratio for Early Differentiation between Parkinsonian Variant of Multiple System Atrophy and Parkinson Disease
Journal of Clinical Neurology
; : 79-81, 2007.
Artigo
em Inglês
| WPRIM (Pacífico Ocidental)
| ID: wpr-192439
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND AND PURPOSE:
Neuropathological studies have demonstrated that multiple system atrophy (MSA) produces selective atrophy of the putamen with sparing of the caudate nucleus, while both structures are spared in idiopathic Parkinson's disease (PD). In this study we evaluated the clinical efficacy of using putaminal atrophy in brain MRI to differentiate MSA and PD.METHODS:
We measured the putamen/caudate volume ratio on brain MRI in 24 patients with MSA and 21 patients with PD. Two clinicians who were blinded to the patients' diagnoses and to each other's assessments measured the volume ratio using a computer program.RESULTS:
The measured volume ratios of the two investigators were highly correlated (r=0.72, p<0.0001). The volume ratio was significantly lower in MSA (1.29+/-0.28) than PD (1.91+/-0.29, p<0.0001). Setting an arbitrary cutoff ratio of 1.6 resulted in about 90% of patients with MSA falling into the group with a lower ratio, whereas more than 80% of patients with PD belonged to the other group.CONCLUSIONS:
The present results demonstrate that putaminal atrophy in MSA as measured on brain MRI represents an effective tool for differentiating MSA from PD.
Texto completo:
Disponível
Base de dados:
WPRIM (Pacífico Ocidental)
Assunto principal:
Doença de Parkinson
/
Putamen
/
Pesquisadores
/
Atrofia
/
Encéfalo
/
Imageamento por Ressonância Magnética
/
Núcleo Caudado
/
Atrofia de Múltiplos Sistemas
/
Diagnóstico
Tipo de estudo:
Estudo diagnóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
Journal of Clinical Neurology
Ano de publicação:
2007
Tipo de documento:
Artigo