Non invasive infrared spectroscopy is a well established technique for monitoring changes
in the oxygenation status of tissues (1). The technique has in particular been successfully …

The use of optical spectroscopy for the non-invasive monitoring of tissue oxygenation and
metabolism is well established (Chance et al., 1975). Historically because of the high …

Near infrared (IR) spectroscopy can give continuous, direct information about cerebral
oxygenation in vivo by providing signals from oxygenated and deoxygenated haemoglobin …

The principle of near infrared spectroscopy (NIRS) was first clearly defined by Jobsis in
1977, and recent technical and methodological advances have made it possible to use …

In the brain of the adult rat, the ratio of the absorption coefficient of hemoglobin to that of the
cytochromes is approximately ten and in the newborn rat brain the ratio is even higher …

The monitoring of tissue oxygenation by the technique of near infrared spectroscopy (NIRS)
was first described by Jöbsis in 1977 (Jöbsis, 1977). The technique relies upon the relative …

Near infrared spectroscopy (NIRS) is used to measure global changes in cerebral
haemodynamics. We have adapted the technique to measure regional changes in response …

Near-ir (NIR) spectroscopy (NIRS) is a technique that can probe the brain non-invasively. It
utilizes the fact that within the wavelength region 650-1000 nm there is relatively little …

The technique of near infrared spectroscopy (NIRS) is being increasingly used in clinical
measurements of blood and tissue oxygenation (Wyatt et al 1986, Edwards et al 1990). and …

This project had two main objectives. The first of these was to design and construct a
spectroscopic instrument to monitor small changes in optical transmission across an infant's …