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Sampling rates required for digital recording of intracellular and extracellular cardiac potentials.

Publication ,  Journal Article
Barr, RC; Spach, MS
Published in: Circulation
January 1977

Electrocardiograms and cardiac electrograms now frequently are measured for both clinical and experimental purposes by direct digital sampling, with no recording of the signal in analog form. This study examined the question of what sampling rates were required to measure accurately the continuous waveforms from the digital samples. Body surface waveforms and intracellular and extracellular waveforms measured directly from cardiac tissues were evaluated. Cardiac measurements included waveforms from the atrium, ventricle, atrioventricular transmission system and individual Purkinje strands. Sampling rates as high as 15,000 samples/sec were required to record accurately extracellular waveforms of the ventricular conduction system. Decreasing sampling rates were required as the recording site shifted through the ventricle to the body surface, where sampling rates as high as 1500 samples/sec were necessary.

Duke Scholars

Published In

Circulation

DOI

EISSN

1524-4539

ISSN

0009-7322

Publication Date

January 1977

Volume

55

Issue

1

Start / End Page

40 / 48

Related Subject Headings

  • Infant
  • Humans
  • Heart Conduction System
  • Heart
  • Extracellular Space
  • Electrocardiography
  • Dogs
  • Cardiovascular System & Hematology
  • Animals, Newborn
  • Animals
 

Citation

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ICMJE
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Barr, R. C., & Spach, M. S. (1977). Sampling rates required for digital recording of intracellular and extracellular cardiac potentials. Circulation, 55(1), 40–48. https://doi.org/10.1161/01.cir.55.1.40
Barr, R. C., and M. S. Spach. “Sampling rates required for digital recording of intracellular and extracellular cardiac potentials.Circulation 55, no. 1 (January 1977): 40–48. https://doi.org/10.1161/01.cir.55.1.40.
Barr, R. C., and M. S. Spach. “Sampling rates required for digital recording of intracellular and extracellular cardiac potentials.Circulation, vol. 55, no. 1, Jan. 1977, pp. 40–48. Epmc, doi:10.1161/01.cir.55.1.40.

Published In

Circulation

DOI

EISSN

1524-4539

ISSN

0009-7322

Publication Date

January 1977

Volume

55

Issue

1

Start / End Page

40 / 48

Related Subject Headings

  • Infant
  • Humans
  • Heart Conduction System
  • Heart
  • Extracellular Space
  • Electrocardiography
  • Dogs
  • Cardiovascular System & Hematology
  • Animals, Newborn
  • Animals