[Acoustically evoked brain stem potentials. Prerequisites for clinical use, data quality and sources of error].
Ninety patients were subjected to brain-stem auditory evoked potential (BAEP) measurements in the intensive care unit. The data are analyzed and discussed with respect to their quality, reliability, and reproducibility. BAEPs of a quality satisfactory for diagnosis were found in 90% of the patients. About 10% of the measurements were distorted by artifacts and could not be used for diagnostic purposes. Reasons for these artifacts and problems of interpretation are discussed. Examples of single BAEPs and on-line monitoring of BAEPs in the form of "compressed BAEPs" are shown.
Abteilung für Medizinische Informatik, Technischen Universität Graz.
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G
Litscher
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Pfurtscheller
G
G
Schwarz
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W
List
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001930:Brain Injuries / Q000503:physiopathology*; D001933:Brain Stem / Q000503:physiopathology*; D002648:Child; D003128:Coma / Q000503:physiopathology*; D003422:Critical Care; D004569:Electroencephalography / Q000592:standards; D004660:Encephalitis / Q000503:physiopathology*; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011786:Quality Control
Akustisch evozierte Hirnstammpotentiale. Voraussetzungen für klinische Anwendungen, Datenqualität und Fehlerquellen.