Beer–Lambert law for optical tissue diagnostics: current state of the art and the main limitations

I Oshina, J Spigulis - Journal of biomedical optics, 2021 - spiedigitallibrary.org
… impacts of absorption and scattering can be measuredscattering in the tissues changes
during muscle activation due to tension kinetics 32 and during neuronal activation in the brain

Brain Monitoring Using Optical Imaging and Optical Spectroscopy

DA Benaron - Brain Injury and Pediatric Cardiac Surgery, 2019 - taylorfrancis.com
measured transcranial cerebral optical path and absorbance … in scattering media such
as in animal and human brain. … Cerebral and muscle oxygen saturation measurement by a …

From Jöbsis to the present day: a review of clinical near-infrared spectroscopy measurements of cerebral cytochrome-c-oxidase

G Bale, CE Elwell, I Tachtsidis - Journal of biomedical optics, 2016 - spiedigitallibrary.org
… or to measure scattering during the measurement period, particularly in cases such as brain
… , allowing us to resolve tissue light absorption and scattering across the NIR spectra to …

Combined multi-distance frequency domain and diffuse correlation spectroscopy system with simultaneous data acquisition and real-time analysis

SA Carp, P Farzam, N Redes, DM Hueber… - Biomedical optics …, 2017 - opg.optica.org
… This measure is of particular importance when applied to the brain (cerebral MRO 2 , ie …
under conditions where substantial changes in absorption and scattering occur with minimal …

Design of a Novel Functional Near-Infrared Spectroscopy System for Human Brain Imaging

MA Yaqub, A Zafar, U Ghafoor… - 2019 12th Asian Control …, 2019 - ieeexplore.ieee.org
… through the brain tissue and get absorbed and scattered, is received and measured by using
… imaging of blood volume and deoxygenation changes in muscles using light-emitting diode …

[HTML][HTML] Optical properties, spectral, and lifetime measurements of central nervous system tumors in humans

F Poulon, H Mehidine, M Juchaux, P Varlet… - Scientific reports, 2017 - nature.com
… to measure the optical parameters of sample from healthy brain … We measured the optical
properties with different excitation … of the absorption coefficient and scattering coefficient on …

[HTML][HTML] Non-invasive estimation of in vivo optical properties and hemodynamic parameters of domestic animals: a preliminary study on horses, dogs, and sheep

L Frabasile, C Amendola, M Buttafava… - Frontiers in Veterinary …, 2023 - ncbi.nlm.nih.gov
… NIRS measurements of optical properties (absorption coefficient, reduced scattering coefficient,
… reaching the brain cortex while in dog light penetration can be hindered by the strongly …

Oximetry for Various Tissues Using Near-Infrared Spectroscopy

M Niwayama - Biomedical Engineering, 2021 - taylorfrancis.com
muscles and the brain to measurelength of a photon traveling in the scattering medium.
This technique can be used to determine the absorption coefficient and the reduced scattering

[HTML][HTML] Frequency-domain techniques for cerebral and functional near-infrared spectroscopy

S Fantini, A Sassaroli - Frontiers in neuroscience, 2020 - frontiersin.org
… We observe that in the case of non-invasive NIRS measurements of the brain (for which μ a
… region), in either the absorption coefficient or reduced scattering coefficient, in an otherwise …

[HTML][HTML] Optical brain imaging and its application to neurofeedback

SR Soekadar, SH Kohl, M Mihara, A von Lühmann - NeuroImage: Clinical, 2021 - Elsevier
… real-time brain imaging. Here, changes in the radiation’s absorption or scattering allow for
… Provided the scattering/path length d × P are known, absolute changes in the concentration …