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

Optical properties, the reduced scattering and absorption coefficients, of biological tissues
are measured by two methods; one using an integrating sphere and the other using time …

Use of pure diffusion theory produced errors in the measurement of absorbance and
scattering using a time-of-flight system. In an attempt to produce quantitative values for …

Abstract Near infrared light (650–1100 nm) is capable of penetrating the human scalp and
skull (Wan et al. 1981). Hemoglobin and oxyhemoglobin circulating in the cerebrovascular …

In five healthy human subjects, near-infrared spectroscopy (NIRS) and positron emission
tomography (PET) examinations were performed simultaneously. Changes in [oxy …

The use of red light to detect the presence of the deoxygenation of hemoglobin in adult and
neonate brains has been the goal of Jobsis-VanderVleit at Durham and Delpy in London. 1 …

Adequate modeling of light propagation in a human head is important for quantitative near-
infrared spectroscopy and optical imaging. The presence of a nonscattering cerebrospinal …

The basic parameters for physiological measurements provided by near-infrared
spectroscopy are the local absorption and scattering coefficients. For the adult human head …

Near infrared (NIR) light has been widely used for measuring changes in hemoglobin
concentration in the human brain (functional NIR spectroscopy, fNIRS). fNIRS is based on …

Depth localization of absorption changes by single distance time domain reflectometry on the
adult human head Page 1 Depth localization of absorption changes by single distance time …