Effects of local hyperemia and edema on the biological zero in laser Doppler fluxmetry (LD).

@article{Wahlberg1992EffectsOL,
  title={Effects of local hyperemia and edema on the biological zero in laser Doppler fluxmetry (LD).},
  author={Eric J Wahlberg and P Olofsson and Jesper Swedenborg and Bengt Fagrell},
  journal={International journal of microcirculation, clinical and experimental},
  year={1992},
  volume={11 2},
  pages={157-65}
}
The method of laser Doppler (LD) fluxmetry records the flux of moving blood cells and particles in a small tissue volume. However, also during complete arterial occlusion a flux-independent signal can be recorded, which is sometimes significantly different from the electrical zero of the instrument. This part of the signal has been called the biological zero (BZ), and can sometimes represent up to 80% of the total LD signal. In the present study, we investigated the influence of induced… CONTINUE READING

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