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Applied potential tomography.

D C Barber1, B H Brown

  • 1Department of Medical Physics, Royal Hallamshire Hospital, Sheffield.

Journal of the British Interplanetary Society
|August 1, 1989
PubMed
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Applied Potential Tomography (APT) offers a safe, new way to image human body resistivity changes during breathing, heartbeats, and fluid shifts in simulated weightlessness. This compact technology is ideal for space-based physiological monitoring.

Area of Science:

  • Biomedical Engineering
  • Medical Imaging
  • Physiology

Background:

  • Electrical resistivity changes in the human body correlate with physiological processes.
  • Monitoring these changes is crucial for understanding bodily functions, especially in unique environments like space.

Purpose of the Study:

  • To introduce Applied Potential Tomography (APT) as a novel method for imaging resistivity variations.
  • To demonstrate APT's capability in detecting physiological changes during respiration, cardiac cycles, and fluid shifts.

Main Methods:

  • Utilizing low electric currents to measure electrical resistivity distribution.
  • Developing a simple and compact equipment design for APT.

Main Results:

Related Experiment Videos

  • APT successfully images dynamic changes in electrical resistivity.
  • Observed changes correspond to respiration, cardiac activity, and fluid redistribution during simulated weightlessness.

    • Conclusions:

    • Applied Potential Tomography is a safe and effective imaging technique.
    • Its simplicity and compactness make it suitable for space-based physiological measurements.