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    Fortschr Neurol Psychiatr. 2010 Mar;78 Suppl 1:S25-30. Epub 2010 Mar 1.

    [Transcraniel ultrasound in the differential diagnosis of Parkinson's disease].

    [Article in German]
    Woitalla D, Braak H, Tredici KD, Fogel W, Hagenah J, Oertel W, Berg D.

    Source

    Neurologische Universitätsklinik der Ruhr-Universität Bochum im St. Josef Hospital, Bochum. d.woitalla@elis-stiftung.de

    Abstract

    Imaging of the brain structure with transcranial ultrasound has become an important tool for the diagnosis and differential diagnosis of Parkinson's Disease. In up to 90 % of parkinsonian patients abnormal echogenity of the substantia nigra could be demonstrated. Particularly in the early diagnosis in subjects with only very mild extrapyramidal features and in the differential diagnosis to other neurodegenerative disorders with parkinsonian features, such as the parkinsonian variant of multisystematrophy (MSA-P) and progressive supranuclear paralysis (PSP) ultrasound has a high diagnostic yield. Because of a prevalence of about 10 % in the normal population, the evidence of an abnormal echogenity of the substantia nigra has to be interpreted carefully in the context of a clinical examination. Although there are a number of studies indicating that in some of these subjects a vulnerability of the nigrostriatal system can be found, the meaning of an abnormal echogenicity of the substantia nigra in the healthy population needs to be further elucidated in already ongoing research projects.

    PMID:
    20195938
    [PubMed - indexed for MEDLINE]

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