Advance in ERG analysis: from peak time and amplitude to frequency, power, and energy

BioMed Research International
Mathieu GauvinPierre Lachapelle

Abstract

To compare time domain (TD: peak time and amplitude) analysis of the human photopic electroretinogram (ERG) with measures obtained in the frequency domain (Fourier analysis: FA) and in the time-frequency domain (continuous (CWT) and discrete (DWT) wavelet transforms). Normal ERGs (n = 40) were analyzed using traditional peak time and amplitude measurements of the a- and b-waves in the TD and descriptors extracted from FA, CWT, and DWT. Selected descriptors were also compared in their ability to monitor the long-term consequences of disease process. Each method extracted relevant information but had distinct limitations (i.e., temporal and frequency resolutions). The DWT offered the best compromise by allowing us to extract more relevant descriptors of the ERG signal at the cost of lesser temporal and frequency resolutions. Follow-ups of disease progression were more prolonged with the DWT (max 29 years compared to 13 with TD). Standardized time domain analysis of retinal function should be complemented with advanced DWT descriptors of the ERG. This method should allow more sensitive/specific quantifications of ERG responses, facilitate follow-up of disease progression, and identify diagnostically significant changes of ERG wave...Continue Reading

References

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Citations

Aug 27, 2016·Documenta Ophthalmologica. Advances in Ophthalmology·Hansa KundraJ Jason McAnany
Dec 1, 2017·International Ophthalmology·Samira EbdaliSoheila Asgari
Mar 21, 2020·Veterinary Ophthalmology·Nathaniel Pasmanter, Simon M Petersen-Jones
Jun 27, 2020·Seminars in Ophthalmology·Soroor BehbahaniHamideh Sabbaghi
Jul 9, 2020·Current Opinion in Psychiatry·Stefan JeroticNadja P Maric
Apr 5, 2016·Documenta Ophthalmologica. Advances in Ophthalmology·Mathieu GauvinPierre Lachapelle
Mar 9, 2019·Documenta Ophthalmologica. Advances in Ophthalmology·Mercedes GauthierPierre Lachapelle
Jul 26, 2017·Documenta Ophthalmologica. Advances in Ophthalmology·Jungeun WooPierre Lachapelle
Jun 17, 2020·Documenta Ophthalmologica. Advances in Ophthalmology·Diane WangScott E Brodie
Jun 9, 2017·Documenta Ophthalmologica. Advances in Ophthalmology·Livia M BrandaoAnja M Palmowski-Wolfe
Nov 24, 2020·Documenta Ophthalmologica. Advances in Ophthalmology·Hamid AhmadiehSare Safi
Nov 12, 2019·Schizophrenia Research·Steven M SilversteinDocia L Demmin
Apr 6, 2021·Documenta Ophthalmologica. Advances in Ophthalmology·Nate PasmanterSimon M Petersen-Jones
Jul 1, 2021·Documenta Ophthalmologica. Advances in Ophthalmology·Hamideh SabbaghiHamid Ahmadieh
Sep 10, 2021·Seminars in Ophthalmology·Samiyeh BakhshiNarsis Daftarian
Sep 25, 2021·Documenta Ophthalmologica. Advances in Ophthalmology·Min GaoBalázs Vince Nagy
Oct 17, 2019·Schizophrenia Research·Pantea MoghimiRobert F Miller

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Software Mentioned

Mallat
MATLAB

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