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Improving the quality of multifocal visual evoked potential results by calculating multiple virtual channels

  • Clinical Investigation
  • Published:
Japanese Journal of Ophthalmology Aims and scope Submit manuscript

Abstract

Purpose

To introduce a method for improvement of multifocal VEP (mfVEP) recordings by prediction of waveforms at multiple positions on the surface of the skull.

Methods

Fifteen healthy participants (mean age 24 ± 3.8 years) underwent mfVEP recordings from 3 surface positions. Two methods of a best-of-mfVEP approach were used and compared. In the first, a standard procedure, further data from 3 calculated channels were used. In the second approach, mfVEPs were obtained by using data derived from 40 virtual electrode positions on the basis of predictions from dipole source calculations.

Results

The mean signal-to-noise ratios (SNRs) of the best-of-mfVEPs of both methods were compared. The SNR was significantly higher for mfVEP data using additional virtual recordings revealed by dipole source determination (2.87 vs. 3.36; P < 0.035).

Conclusion

We conclude that multichannel prediction of mfVEP responses based on dipole source calculation significantly improves the quality of the examination results compared with the currently prevalent standard method.

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Author information

Authors and Affiliations

  1. Department of Ophthalmology, University Hospital RWTH Aachen, Pauwelsstr. 30, 52074, Aachen, Germany

    Babac A. E. Mazinani, Andreas W. A. Weinberger, Peter Walter & Gernot F. Roessler

  2. Department of Neurology, University Hospital RWTH Aachen, Aachen, Germany

    Till D. Waberski

Authors
  1. Babac A. E. Mazinani
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  2. Till D. Waberski
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  3. Andreas W. A. Weinberger
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  4. Peter Walter
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  5. Gernot F. Roessler
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Corresponding author

Correspondence to Babac A. E. Mazinani.

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Cite this article

Mazinani, B.A.E., Waberski, T.D., Weinberger, A.W.A. et al. Improving the quality of multifocal visual evoked potential results by calculating multiple virtual channels. Jpn J Ophthalmol 55, 396–400 (2011). https://doi.org/10.1007/s10384-011-0040-4

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  • DOI: https://doi.org/10.1007/s10384-011-0040-4

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