In vivo near-infrared spectroscopy

P Rolfe - Annual review of biomedical engineering, 2000 - annualreviews.org
▪ Abstract Interrogation of tissue with light offers the potential for noninvasive chemical
measurement, and penetration with near-infrared wavelengths (750–1000 nm) is greater …

Near-infrared spectroscopy: theory and applications

JA Wahr, KK Tremper, S Samra, DT Delpy - Journal of cardiothoracic and …, 1996 - Elsevier
In conclusion, NIRS appears to offer both a new monitoring modality and new information
about cerebral oxygenation. Technical problems in the application of this technology persist …

Quantification in tissue near–infrared spectroscopy

DT Delpy, M Cope - … Transactions of the Royal Society of …, 1997 - royalsocietypublishing.org
In near–infrared spectroscopy (NIRS) of tissue, light attenuation is due to:(i) absorption from
chromophores of fixed concentration,(ii) absorption from chromophores of variable …

Tissue oxygenation monitor using NIR spatially resolved spectroscopy

S Suzuki, S Takasaki, T Ozaki… - Optical tomography and …, 1999 - spiedigitallibrary.org
A new clinical tissue oxygenation monitor, the NIRO-300, has been developed. In addition to
monitoring changes in hemoglobin concentration and redox state of cytochrome oxidase …

Theoretical and experimental investigation of near-infrared light propagation in a model of the adult head

E Okada, M Firbank, M Schweiger, SR Arridge… - Applied …, 1997 - opg.optica.org
Near-infrared light propagation in various models of the adult head is analyzed by both time-
of-flight measurements and mathematical prediction. The models consist of three-or four …

Non-invasive optical monitoring of the newborn piglet brain using continuous-wave and frequency-domain spectroscopy

S Fantini, D Hueber, MA Franceschini… - Physics in Medicine …, 1999 - iopscience.iop.org
We have used continuous-wave (CW) and frequency-domain spectroscopy to investigate
the optical properties of the newborn piglet brain in vivo and non-invasively. Three …

Evaluation of a near-infrared spectrometer (NIRO 300) for the detection of intracranial oxygenation changes in the adult head

PG Al-Rawi, P Smielewski, PJ Kirkpatrick - Stroke, 2001 - Am Heart Assoc
Background and Purpose—The clinical application of intracranial near-infrared
spectroscopy in adults has been hampered by concerns over contamination from …

Gradient-based iterative image reconstruction scheme for time-resolved optical tomography

AH Hielscher, AD Klose… - IEEE Transactions on …, 1999 - ieeexplore.ieee.org
Currently available tomographic image reconstruction schemes for optical tomography (OT)
are mostly based on the limiting assumptions of small perturbations and a priori knowledge …

Influence of a superficial layer in the quantitative spectroscopic study of strongly scattering media

MA Franceschini, S Fantini, LA Paunescu, JS Maier… - Applied …, 1998 - opg.optica.org
We have experimentally investigated the meaning of the effective optical absorption
[μ_a^(eff)] and the reduced scattering [μ_s′^(eff)] coefficients measured on the surfaces of …

Iterative reconstruction scheme for optical tomography based on the equation of radiative transfer

AD Klose, AH Hielscher - Medical physics, 1999 - Wiley Online Library
We report on the development of an iterative image reconstruction scheme for optical
tomography that is based on the equation of radiative transfer. Unlike the commonly applied …