An Impedance Camera for Spatially Specific Measurements of the Thorax

@article{Henderson1978AnIC,
  title={An Impedance Camera for Spatially Specific Measurements of the Thorax},
  author={R. Henderson and J. Webster},
  journal={IEEE Transactions on Biomedical Engineering},
  year={1978},
  volume={BME-25},
  pages={250-254}
}
We have designed and built an impedance camera to generate electrical impedance images of the thorax. Our instrument makes 100 spatially specific admittance measurements per frame at rates up to 32 frames per second. An on-line raster-scan display provides direct visualization while recording of data allows off-line quantitative analysis. We have found that some of the admittance measurements change 25% in humans with forced respiration. We discuss the principle of a mutually guarding electrode… Expand
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