Near-infrared spectroscopy as an index of brain and tissue oxygenation

brain near-infrared spectroscopy (nirs)

near-infrared spectroscopy (nirs) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum. typical applications include medical and physiological diagnostics. nirs can be used for non-invasive assessment of brain function through the intact skull in human subjects by detecting changes in blood hemoglobin concentrations associated with neural activity, e.g., ...

Probing Brain Oxygenation Waveforms with Near Infrared Spectroscopy (NIRS)

Alexander Gersten1, Jacqueline Perle2, Dov Heimer3, Amir Raz4 and Robert Fried5 1Department of Physics, Ben-Gurion University, Beer-Sheva 2Department of Psychology, Hunter College of the City University of New York, NY 3Pulmonary Unit, Soroka University Hospital, Beer-Sheva 4McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal 5City University of New York...

Near-infrared spectroscopy for monitoring muscle oxygenation.

Near-infrared spectroscopy (NIRS) is a non-invasive method for monitoring oxygen availability and utilization by the tissues. In intact skeletal muscle, NIRS allows semi-quantitative measurements of haemoglobin plus myoglobin oxygenation (tissue O2 stores) and the haemoglobin volume. Specialized algorithms allow assessment of the oxidation-reduction (redox) state of the copper moiety (CuA) of m...

Nondestructive Firmness Estimation of Tomato Fruit Using Near-Infrared Spectroscopy

Today, nondestructive methods are widely used to determine the quality of agricultural products. Meanwhile, visible and near-infrared (Vis/NIR) spectroscopy is regarded as one of the most widely used methods in the field of quality assessment of agricultural products. In this study, a system was developed to measure the Vis/NIR spectra of tomato fruit samples in the half-transmittance mode of m...

Probing Brain Oxygenation with Near Infrared Spectroscopy (NIRS) — The Role of Carbon Dioxide and Blood Pressure