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Predictive value of transcranial sonography in the diagnosis of Parkinson's disease
Author(s) -
Prestel Jürgen,
Schweitzer Katherine J.,
Hofer Anne,
Gasser Thomas,
Berg Daniela
Publication year - 2006
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.21054
Subject(s) - predictive value , parkinson's disease , sonographer , blinding , medicine , disease , psychology , radiology , ultrasound , clinical trial
Transcanial sonography (TCS) is increasingly applied in the diagnosis of Parkinson's disease (PD), but investigator bias may influence the results of examination. Blinding the sonographer to the clinical diagnosis of 42 PD patients and 35 controls, we obtained a positive predictive value of 85.7% and a negative predictive value of 82.9% in the diagnosis of PD solely by interpreting the results of TCS, indicating that TCS is a valuable additional tool in the diagnosis of PD. © 2006 Movement Disorder Society