PRBS-determined temporal frequency characteristics of VEP for glaucoma screening

Author

Momose, Keiko ; Kiyosawa, Motohiro ; Nemoto, Nobuyuki ; Kimura, Yuichi ; komoya, K.

Author_Institution

Dept. of Electr. & Electron., Kanagawa Inst. of Technol., Japan

Volume

6

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

3188

Abstract

The purpose of this study was to determine whether or not PRBS-determined temporal frequency characteristics of VEP are valid and useful in evaluating glaucoma. Temporal frequency characteristics (TFC) of VEP are used to detect certain diseases involving the retina or optic nerve. PRBS-determined TFC are obtained from VEP elicited by pseudorandom binary sequence stimulation. We have previously reported their advantage in terms of measurement time. TFCs of VEP were measured from 33 eyes with glaucoma and compared with those of 22 normal eyes. In glaucoma, TFC amplitudes at 15 Hz were generally decreased according to glaucoma stage, indicating that these values are reasonable for evaluating glaucoma. Decreases in these values were also correlated with peripheral visual field loss, para-central scotoma development and visual acuity decrease

Keywords

diseases; medical signal processing; time-frequency analysis; visual evoked potentials; EEG responses; PRBS-determined; glaucoma screening; para-central scotoma development; peripheral visual field loss; pseudorandom binary sequence stimulation; temporal frequency characteristics; visual acuity decrease; visual evoked potentials; Biomedical engineering; Dentistry; Diseases; Electroencephalography; Eyes; Frequency measurement; Humans; Light emitting diodes; Retina; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.746171

Filename

746171