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Erschienen in: Journal of Neural Transmission 4/2011

01.04.2011 | Movement Disorders - Original Article

Substantia nigra hyperechogenicity is a risk marker of Parkinson’s disease: no

verfasst von: Uwe Walter

Erschienen in: Journal of Neural Transmission | Ausgabe 4/2011

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Abstract

During the past two decades, transcranial sonography (TCS) has developed to an increasingly used brain imaging method that visualizes characteristic patterns of basal ganglia alterations in distinct movement disorders. Since the discovery of a characteristic abnormal hyperechogenic appearance of substantia nigra (SN) on TCS in Parkinson’s disease (PD), which is stable during the course of the disease and probably present already in preclinical disease stages, the results of several studies have promoted the idea that this TCS finding in healthy subjects might be a risk marker of PD. The present view summarizes current scientific evidence favouring the idea that the TCS finding of SN hyperechogenicity alone may not be a (strong) risk marker of PD. Especially, it is discussed how reliable this TCS finding is, whether this TCS finding can be regarded as a progression marker or a risk marker of PD, how strongly it may indicate a risk of PD, what else if not an increased risk of PD could be indicated, and which role TCS of SN may finally play in the detection of subjects at risk of PD.
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Zurück zum Zitat Walter U, Kanowski M, Kaufmann J, Grossmann A, Benecke R, Niehaus L (2008) Contemporary ultrasound systems allow high-resolution transcranial imaging of small echogenic deep intracranial structures similarly as MRI: a phantom study. Neuroimage 40:551–558PubMedCrossRef Walter U, Kanowski M, Kaufmann J, Grossmann A, Benecke R, Niehaus L (2008) Contemporary ultrasound systems allow high-resolution transcranial imaging of small echogenic deep intracranial structures similarly as MRI: a phantom study. Neuroimage 40:551–558PubMedCrossRef
Zurück zum Zitat Walter U, Wagner S, Horowski S, Benecke R, Zettl UK (2009) Transcranial brain sonography findings predict disease progression in multiple sclerosis. Neurology 73:1010–1017PubMedCrossRef Walter U, Wagner S, Horowski S, Benecke R, Zettl UK (2009) Transcranial brain sonography findings predict disease progression in multiple sclerosis. Neurology 73:1010–1017PubMedCrossRef
Zurück zum Zitat Weise D, Lorenz R, Schliesser M, Schirbel A, Reiners K, Classen J (2009) Substantia nigra echogenicity: a structural correlate of functional impairment of the dopaminergic striatal projection in Parkinson’s disease. Mov Disord 24:1669–1675PubMedCrossRef Weise D, Lorenz R, Schliesser M, Schirbel A, Reiners K, Classen J (2009) Substantia nigra echogenicity: a structural correlate of functional impairment of the dopaminergic striatal projection in Parkinson’s disease. Mov Disord 24:1669–1675PubMedCrossRef
Metadaten
Titel
Substantia nigra hyperechogenicity is a risk marker of Parkinson’s disease: no
verfasst von
Uwe Walter
Publikationsdatum
01.04.2011
Verlag
Springer Vienna
Erschienen in
Journal of Neural Transmission / Ausgabe 4/2011
Print ISSN: 0300-9564
Elektronische ISSN: 1435-1463
DOI
https://doi.org/10.1007/s00702-010-0564-7

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