Detection of cerebral ischaemia in the anaesthetised rat by impedance measurement with scalp electrodes: implications for non-invasive imaging of stroke by electrical impedance tomography.

@article{Holder1992DetectionOC,
  title={Detection of cerebral ischaemia in the anaesthetised rat by impedance measurement with scalp electrodes: implications for non-invasive imaging of stroke by electrical impedance tomography.},
  author={David S. Holder},
  journal={Clinical physics and physiological measurement : an official journal of the Hospital Physicists' Association, Deutsche Gesellschaft fur Medizinische Physik and the European Federation of Organisations for Medical Physics},
  year={1992},
  volume={13 1},
  pages={63-75}
}
  • David S. Holder
  • Published 1992 in
    Clinical physics and physiological measurement…
The possible use of impedance measurement with scalp electrodes to detect cerebral ischemia non-invasively was investigated in the anaesthetised rat. Global cerebral ischaemia was induced by diathermy of both vertebral arteries and reversible occlusion of the carotid arteries. Impedance was measured at 50 kHz by a four electrode method. With cortical electrodes in various positions, reversible impedance increases of 15 - 60% were recorded during episodes of cerebral ischaemia which lasted for 5… CONTINUE READING

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