A study of composite electrode-tissue impedance

R Robinson; John L Davidson; Wright Paul; CJD Pomfrett; McCann Hugh

A study of composite electrode-tissue impedance

R Robinson, John L Davidson, Wright Paul, CJD Pomfrett, McCann Hugh

Research output: Contribution to journal › Article › peer-review

Abstract

Electrical impedance tomography has been used in the medical environment for many years. Recently it has been used for brain function imaging. This type of technology uses a large number of electrodes on the scalp, examples in the literature ranging from 8 to 64. In this paper, the composite impedance of the electrode in contact with tissue is investigated. An experimental method has been developed to enable the use of a commercial impedance analyzer in compliance with medical safety standards. The magnitude and long-term stability of the composite impedance of the electrode-tissue system is found to be greatly dependent on the type of electrodes used.

Original language	English
Journal	Conf Proc IEEE Eng Med Biol Soc.
Volume	1
Publication status	Published - 2008

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title = "A study of composite electrode-tissue impedance",

abstract = "Electrical impedance tomography has been used in the medical environment for many years. Recently it has been used for brain function imaging. This type of technology uses a large number of electrodes on the scalp, examples in the literature ranging from 8 to 64. In this paper, the composite impedance of the electrode in contact with tissue is investigated. An experimental method has been developed to enable the use of a commercial impedance analyzer in compliance with medical safety standards. The magnitude and long-term stability of the composite impedance of the electrode-tissue system is found to be greatly dependent on the type of electrodes used.",

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AU - Robinson, R

AU - Davidson, John L

AU - Paul, Wright

AU - Pomfrett, CJD

AU - Hugh, McCann

PY - 2008

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N2 - Electrical impedance tomography has been used in the medical environment for many years. Recently it has been used for brain function imaging. This type of technology uses a large number of electrodes on the scalp, examples in the literature ranging from 8 to 64. In this paper, the composite impedance of the electrode in contact with tissue is investigated. An experimental method has been developed to enable the use of a commercial impedance analyzer in compliance with medical safety standards. The magnitude and long-term stability of the composite impedance of the electrode-tissue system is found to be greatly dependent on the type of electrodes used.

AB - Electrical impedance tomography has been used in the medical environment for many years. Recently it has been used for brain function imaging. This type of technology uses a large number of electrodes on the scalp, examples in the literature ranging from 8 to 64. In this paper, the composite impedance of the electrode in contact with tissue is investigated. An experimental method has been developed to enable the use of a commercial impedance analyzer in compliance with medical safety standards. The magnitude and long-term stability of the composite impedance of the electrode-tissue system is found to be greatly dependent on the type of electrodes used.

M3 - Article

VL - 1

JO - Conf Proc IEEE Eng Med Biol Soc.

JF - Conf Proc IEEE Eng Med Biol Soc.

ER -

A study of composite electrode-tissue impedance

Abstract

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