Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length

Petrus H. Veltink, Thijs Tönis, T. Tonis, H.P.J. Buschman, Enrico Marani, W.A. Wesselink

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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    Abstract

    The effect of finite cuff length on the signals recorded by electrodes at different positions along the nerve was analysed in a model study. Relations were derived using a one-dimensional model. These were evaluated in a more realistic axially symmetric 3D model. This evaluation indicated that the cuff appeared shorter because of edge effects at the beginning and end of the cuff. The method for velocity selective filtering introduced by Donaldson was subsequently analysed. In this method, velocity selective filtering is achieved by summing the signals of subsequent tripoles after applying time shifts tuned to a certain conduction velocity. It was also found that the optimum electrode distance for a given cuff length for maximum summed RMS of symmetrical tripoles in the cuff is larger than when evaluating peak-peak amplitudes of single fibre action potentials. Velocity selective filtering yields better selectivity when using symmetrical tripoles, but may yield larger signal RMS when using the wider asymmetrical tripoles, potentially allowing for shorter cuffs. It is speculated that application of a multi-electrode reference may improve velocity selectivity for asymmetrical tripoles.
    Original languageUndefined
    Title of host publication3rd European Medical and Biological Engineering Conference EMBEC'05
    Place of PublicationNew York
    PublisherSpringer
    Pages1-5
    Number of pages5
    ISBN (Print)not assigned
    Publication statusPublished - 20 Nov 2005
    Event3rd European Medical and Biological Engineering Conference, EMBEC 2005 - Prague, Czech Republic
    Duration: 20 Nov 200525 Nov 2005
    Conference number: 3

    Publication series

    Name
    PublisherSpringer Verlag

    Conference

    Conference3rd European Medical and Biological Engineering Conference, EMBEC 2005
    Abbreviated titleEMBEC
    CountryCzech Republic
    CityPrague
    Period20/11/0525/11/05

    Keywords

    • IR-76731
    • EWI-19964
    • METIS-226118

    Cite this

    Veltink, P. H., Tönis, T., Tonis, T., Buschman, H. P. J., Marani, E., & Wesselink, W. A. (2005). Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length. In 3rd European Medical and Biological Engineering Conference EMBEC'05 (pp. 1-5). New York: Springer.
    Veltink, Petrus H. ; Tönis, Thijs ; Tonis, T. ; Buschman, H.P.J. ; Marani, Enrico ; Wesselink, W.A. / Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length. 3rd European Medical and Biological Engineering Conference EMBEC'05. New York : Springer, 2005. pp. 1-5
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    title = "Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length",
    abstract = "The effect of finite cuff length on the signals recorded by electrodes at different positions along the nerve was analysed in a model study. Relations were derived using a one-dimensional model. These were evaluated in a more realistic axially symmetric 3D model. This evaluation indicated that the cuff appeared shorter because of edge effects at the beginning and end of the cuff. The method for velocity selective filtering introduced by Donaldson was subsequently analysed. In this method, velocity selective filtering is achieved by summing the signals of subsequent tripoles after applying time shifts tuned to a certain conduction velocity. It was also found that the optimum electrode distance for a given cuff length for maximum summed RMS of symmetrical tripoles in the cuff is larger than when evaluating peak-peak amplitudes of single fibre action potentials. Velocity selective filtering yields better selectivity when using symmetrical tripoles, but may yield larger signal RMS when using the wider asymmetrical tripoles, potentially allowing for shorter cuffs. It is speculated that application of a multi-electrode reference may improve velocity selectivity for asymmetrical tripoles.",
    keywords = "IR-76731, EWI-19964, METIS-226118",
    author = "Veltink, {Petrus H.} and Thijs T{\"o}nis and T. Tonis and H.P.J. Buschman and Enrico Marani and W.A. Wesselink",
    note = "http://www.ipem.org.uk/ifmbe_ngen_public/default.asp?ID=835",
    year = "2005",
    month = "11",
    day = "20",
    language = "Undefined",
    isbn = "not assigned",
    publisher = "Springer",
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    booktitle = "3rd European Medical and Biological Engineering Conference EMBEC'05",

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    Veltink, PH, Tönis, T, Tonis, T, Buschman, HPJ, Marani, E & Wesselink, WA 2005, Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length. in 3rd European Medical and Biological Engineering Conference EMBEC'05. Springer, New York, pp. 1-5, 3rd European Medical and Biological Engineering Conference, EMBEC 2005, Prague, Czech Republic, 20/11/05.

    Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length. / Veltink, Petrus H.; Tönis, Thijs; Tonis, T.; Buschman, H.P.J.; Marani, Enrico; Wesselink, W.A.

    3rd European Medical and Biological Engineering Conference EMBEC'05. New York : Springer, 2005. p. 1-5.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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    T1 - Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length

    AU - Veltink, Petrus H.

    AU - Tönis, Thijs

    AU - Tonis, T.

    AU - Buschman, H.P.J.

    AU - Marani, Enrico

    AU - Wesselink, W.A.

    N1 - http://www.ipem.org.uk/ifmbe_ngen_public/default.asp?ID=835

    PY - 2005/11/20

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    N2 - The effect of finite cuff length on the signals recorded by electrodes at different positions along the nerve was analysed in a model study. Relations were derived using a one-dimensional model. These were evaluated in a more realistic axially symmetric 3D model. This evaluation indicated that the cuff appeared shorter because of edge effects at the beginning and end of the cuff. The method for velocity selective filtering introduced by Donaldson was subsequently analysed. In this method, velocity selective filtering is achieved by summing the signals of subsequent tripoles after applying time shifts tuned to a certain conduction velocity. It was also found that the optimum electrode distance for a given cuff length for maximum summed RMS of symmetrical tripoles in the cuff is larger than when evaluating peak-peak amplitudes of single fibre action potentials. Velocity selective filtering yields better selectivity when using symmetrical tripoles, but may yield larger signal RMS when using the wider asymmetrical tripoles, potentially allowing for shorter cuffs. It is speculated that application of a multi-electrode reference may improve velocity selectivity for asymmetrical tripoles.

    AB - The effect of finite cuff length on the signals recorded by electrodes at different positions along the nerve was analysed in a model study. Relations were derived using a one-dimensional model. These were evaluated in a more realistic axially symmetric 3D model. This evaluation indicated that the cuff appeared shorter because of edge effects at the beginning and end of the cuff. The method for velocity selective filtering introduced by Donaldson was subsequently analysed. In this method, velocity selective filtering is achieved by summing the signals of subsequent tripoles after applying time shifts tuned to a certain conduction velocity. It was also found that the optimum electrode distance for a given cuff length for maximum summed RMS of symmetrical tripoles in the cuff is larger than when evaluating peak-peak amplitudes of single fibre action potentials. Velocity selective filtering yields better selectivity when using symmetrical tripoles, but may yield larger signal RMS when using the wider asymmetrical tripoles, potentially allowing for shorter cuffs. It is speculated that application of a multi-electrode reference may improve velocity selectivity for asymmetrical tripoles.

    KW - IR-76731

    KW - EWI-19964

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    M3 - Conference contribution

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    BT - 3rd European Medical and Biological Engineering Conference EMBEC'05

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    Veltink PH, Tönis T, Tonis T, Buschman HPJ, Marani E, Wesselink WA. Multi-electrode nerve cuff recording - model analysis of the effects of finite cuff length. In 3rd European Medical and Biological Engineering Conference EMBEC'05. New York: Springer. 2005. p. 1-5