Use of the water absorption spectrum to quantify tissue chromophore concentration changes in near-infrared spectroscopy
SJ Matcher, M Cope, DT Delpy - Physics in Medicine & Biology, 1994 - iopscience.iop.org
Describes a simple method for measuring the'differential pathlength'of photons in a
scattering medium utilizing the spectral absorption features of water. Determination of this …
scattering medium utilizing the spectral absorption features of water. Determination of this …
Intracerebral penetration of infrared light
PW McCormick, M Stewart, G Lewis, M Dujovny… - Journal of …, 1992 - thejns.org
✓ Near infrared transmission spectroscopy of the human cerebrum may allow noninvasive
evaluation of cerebral hemoglobin saturation in humans. The emerging spectroscopy …
evaluation of cerebral hemoglobin saturation in humans. The emerging spectroscopy …
Study of an algorithm based on model experiments and diffusion theory for a portable tissue oximeter
T Shiga, K Yamamoto, K Tanabe… - … of biomedical optics, 1997 - spiedigitallibrary.org
A portable tissue oximeter that uses light-emitting diodes and two-wavelength near infrared
spectroscopy has been developed. The tissue oximeter is compact enough to be portable …
spectroscopy has been developed. The tissue oximeter is compact enough to be portable …
The effect of optode positioning on optical pathlength in near infrared spectroscopy of brain
P Van der Zee, SR Arridge, M Cope… - Oxygen transport to tissue …, 1990 - Springer
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 …
metabolism is well established (Chance et al., 1975). Historically because of the high …
Quantification of cerebral hemoglobin as a function of oxygenation using near-infrared time-resolved spectroscopy in a piglet model of hypoxia
S Ijichi, T Kusaka, K Isobe, F Islam… - … of biomedical optics, 2005 - spiedigitallibrary.org
Near-infrared spectroscopy (NIRS) has been used for measurement of cerebral hemoglobin
(Hb) concentrations in neonates to study cerebral oxygenation and hemodynamics. We …
(Hb) concentrations in neonates to study cerebral oxygenation and hemodynamics. We …
Measurement of venous oxyhaemoglobin saturation in the adult human forearm by near infrared spectroscopy with venous occlusion
CW Yoxall, AM Weindling - Medical and Biological Engineering and …, 1997 - Springer
Measurement of the oxygenation of the peripheral tissues provides useful information about
tissue perfusion. A method is described for the measurement of peripheral venous …
tissue perfusion. A method is described for the measurement of peripheral venous …
Characterization of the near infrared absorption spectra of cytochrome aa3 and haemoglobin for the non-invasive monitoring of cerebral oxygenation
S Wray, M Cope, DT Delpy, JS Wyatt… - Biochimica et Biophysica …, 1988 - Elsevier
Near infrared (IR) spectroscopy can give continuous, direct information about cerebral
oxygenation in vivo by providing signals from oxygenated and deoxygenated haemoglobin …
oxygenation in vivo by providing signals from oxygenated and deoxygenated haemoglobin …
Noninvasive determination of the optical properties of adult brain: near-infrared spectroscopy approach
The basic parameters for physiological measurements provided by near-infrared
spectroscopy are the local absorption and scattering coefficients. For the adult human head …
spectroscopy are the local absorption and scattering coefficients. For the adult human head …
Noninvasive assessment of cerebral hemodynamics and tissue oxygenation during activation of brain cell function in human adults using near infrared spectroscopy
A Villringer, J Planck, S Stodieck, K Bötzel… - Oxygen Transport to …, 1994 - Springer
Abstract Near Infrared Spectroscopy (NIRS) is an optical technique that measures tissue
absorbance of light at several wavelengths in the 700-1000 nm spectral region. From the …
absorbance of light at several wavelengths in the 700-1000 nm spectral region. From the …
Wavelength dependence of the differential pathlength factor and the log slope in time-resolved tissue spectroscopy
M Essenpreis, M Cope, CE Elwell, SR Arridge… - Optical Imaging of Brain …, 1993 - Springer
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 …
was first described by Jöbsis in 1977 (Jöbsis, 1977). The technique relies upon the relative …