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Hyperechogenicity of the Substantia Nigra in Parkinson's Disease
Author(s) -
Ressner Pavel,
Školoudík David,
Hluštík Petr,
Kaňovský Petr
Publication year - 2007
Publication title -
journal of neuroimaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.822
H-Index - 64
eISSN - 1552-6569
pISSN - 1051-2284
DOI - 10.1111/j.1552-6569.2007.00114.x
Subject(s) - substantia nigra , medicine , echogenicity , parkinson's disease , pathology , nuclear medicine , radiology , disease , ultrasonography
Substantia nigra (SN) was assessed by transcranial sonography (TCS) in 47 Parkinson's disease (PD) patients and in 39 healthy volunteers. A semiquantitative echogenicity scale was created with arbitrary values ranging from 1 to 5, zones with grade ≥3 and larger than 0.19 cm 2 were recorded as hyperechogenic SN. TCS examination of SN as a diagnostic test for PD in our study showed 87.2% sensitivity and 94.9% specificity.