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Thin-film multielectrode arrays for potential gradient measurements in the heart

Publication ,  Journal Article
Mastrototaro, JJ; Pilkington, TC; Ideker, RE; Massoud, HZ
Published in: IEEE/Engineering in Medicine and Biology Society Annual Conference
November 1, 1988

Cardiac needle (plunge) electrode arrays are constructed utilizing integrated-circuit fabrication techniques. These plunge electrodes can be made up to two orders of magnitude smaller in cross-sectional area compared to conventional handmade electrodes. A method has been developed to measure potential gradients from arrays of electrodes formed by bonding two T-shaped probes back-to-back. The recording sites are situated on the vertical part of the T, and the larger bonding pads and connector wires are on the horizontal part. When inserted for recording, the horizontal portion of the probe is pulsed flush to the epicardial surface. Three sets of bipolar pairs are arranged along each vertical shaft. The bipolar pairs are spaced 2.5 mm apart with a 1-mm intercontact spacing. By recording signals with both the array's initial placement and after a 90° rotation of the back-to-back T arrangement, potential measurements are acquired in three mutually orthogonal directions yielding a three-dimensional configuration. Based on the differences in these potential measurements, more accurate potential gradient calculations can be obtained.

Duke Scholars

Published In

IEEE/Engineering in Medicine and Biology Society Annual Conference

Publication Date

November 1, 1988

Volume

10

Issue

pt 1

Start / End Page

90
 

Citation

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ICMJE
MLA
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Mastrototaro, J. J., Pilkington, T. C., Ideker, R. E., & Massoud, H. Z. (1988). Thin-film multielectrode arrays for potential gradient measurements in the heart. IEEE/Engineering in Medicine and Biology Society Annual Conference, 10(pt 1), 90.
Mastrototaro, J. J., T. C. Pilkington, R. E. Ideker, and H. Z. Massoud. “Thin-film multielectrode arrays for potential gradient measurements in the heart.” IEEE/Engineering in Medicine and Biology Society Annual Conference 10, no. pt 1 (November 1, 1988): 90.
Mastrototaro JJ, Pilkington TC, Ideker RE, Massoud HZ. Thin-film multielectrode arrays for potential gradient measurements in the heart. IEEE/Engineering in Medicine and Biology Society Annual Conference. 1988 Nov 1;10(pt 1):90.
Mastrototaro, J. J., et al. “Thin-film multielectrode arrays for potential gradient measurements in the heart.” IEEE/Engineering in Medicine and Biology Society Annual Conference, vol. 10, no. pt 1, Nov. 1988, p. 90.
Mastrototaro JJ, Pilkington TC, Ideker RE, Massoud HZ. Thin-film multielectrode arrays for potential gradient measurements in the heart. IEEE/Engineering in Medicine and Biology Society Annual Conference. 1988 Nov 1;10(pt 1):90.

Published In

IEEE/Engineering in Medicine and Biology Society Annual Conference

Publication Date

November 1, 1988

Volume

10

Issue

pt 1

Start / End Page

90