n CME : Your SA Journal of CPD - Biomedical engineering and medical imaging : more about...

Volume 29, Issue 3
  • ISSN : 0256-2170



In 1977 it was first shown that light in the near-infrared region of the spectrum penetrates biological materials sufficiently to measure changes in cerebral oxygenation, a completely non-invasive technique. Since then, near-infrared spectroscopy (NIRS) has been used to monitor oxyhaemoglobin, deoxyhaemoglobin, blood volume and cytochrome oxidase for a variety of clinical and research applications.

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