Relationship of substantia nigra echogenicity and motor function in elderly subjects
نویسندگان
چکیده
منابع مشابه
Relationship of substantia nigra echogenicity and motor function in elderly subjects.
BACKGROUND Patients with Parkinson's disease (PD) exhibit an increased echogenicity of the substantia nigra (SN) on transcranial sonography. Some healthy adults with the same echo characteristics showed a reduced 18fluorodopa uptake on PET, indicating a subclinical alteration of the nigrostriatal system. OBJECTIVES To determine whether the sonographic phenotype of hyperechogenic SN has any re...
متن کاملEchogenicity of the substantia nigra region in Parkinson's disease.
Hospital das Clínicas, University of São Paulo School of Medicine (FMUSP), São Paulo, Brazil. Correspondence: Edson Bor-Seng-Shu; Divisão de Cirurgia Neurológica, Hospital das Clínicas, USP; Avenida Dr. Eneas de Carvalho Aguiar 255; 05403-000 São Paulo SP Brasil; E-mail: [email protected] Conflict of interest: There is no conflict of interest to declare. Received 04 September 2011; Received ...
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Substantia nigra echomorphology and motor cortex excitability
The aim of our study was to investigate the relation between substantia nigra (SN) echomorphology and indices of motor cortex excitability. Nigral hyperechogenicity in healthy individuals is thought to represent an SN abnormality or predisposition to Parkinson's disease (PD) and its prevalence is greater in the very old. Our study involved 20 old healthy subjects (aged 72-84 years) known to hav...
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ژورنال
عنوان ژورنال: Neurology
سال: 2001
ISSN: 0028-3878,1526-632X
DOI: 10.1212/wnl.56.1.13