scholarly journals In vivo measure of neonate brain optical properties and hemodynamic parameters by time-domain near-infrared spectroscopy

2017 ◽  
Vol 4 (04) ◽  
pp. 1 ◽  
Author(s):  
Lorenzo Spinelli ◽  
Lucia Zucchelli ◽  
Davide Contini ◽  
Matteo Caffini ◽  
Jacques Mehler ◽  
...  
Keyword(s):  
Optical Properties ◽  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Time Domain ◽  
Near Infrared ◽  
Hemodynamic Parameters

Influence of Blood Glucose Level on the Scattering Coefficient of the Skin in Near-Infrared Spectroscopy

2011 ◽  
Author(s):  
Sachiko Kessoku ◽  
Katsuhiko Maruo ◽  
Shinpei Okawa ◽  
Kazuto Masamoto ◽  
Yukio Yamada
Keyword(s):  
Optical Properties ◽  
Infrared Spectroscopy ◽  
Blood Glucose ◽  
Blood Glucose Level ◽  
Glucose Level ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Monitoring Methods ◽  
Absorbance Spectra

Various non-invasive glucose monitoring methods using near-infrared spectroscopy have been investigated although no method has been successful so far. Our previous study has proposed a new promising method utilizing numerically generated absorbance spectra instead of the experimentally acquired absorbance spectra. The method suggests that the correct estimation of the optical properties is very important for numerically generating the absorbance spectra. The purpose of this study is to measure the change in the optical properties of the skin with the change in the blood glucose level in vivo. By measuring the reflectances of light incident on the skin surface at two distances from the incident point, the optical properties of the skin can be estimated. The estimation is a kind of the inverse problem based on the simulation of light propagation in the skin. Phantom experiments have verified the method and in vivo experiments are to be performed.

scholarly journals Special Issue on New Horizons in Time Domain Diffuse Optical Spectroscopy and Imaging

2020 ◽  
Vol 10 (8) ◽  
pp. 2752
Author(s):  
Yoko Hoshi
Keyword(s):  
Infrared Spectroscopy ◽  
Optical Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Time Domain ◽  
Near Infrared ◽  
Special Issue ◽  
Diffuse Optical Spectroscopy ◽  
New Horizons

In 1977, Jöbsis first described the in vivo application of near-infrared spectroscopy (NIRS) [...]

scholarly journals Time Domain Near Infrared Spectroscopy Device for Monitoring Muscle Oxidative Metabolism: Custom Probe and In Vivo Applications

Sensors ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 264 ◽  
Author(s):  
Rebecca Re ◽  
Ileana Pirovano ◽  
Davide Contini ◽  
Lorenzo Spinelli ◽  
Alessandro Torricelli
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Time Domain ◽  
Oxidative Metabolism ◽  
Near Infrared

In vivo determination of the optical properties of infant brain using frequency-domain near-infrared spectroscopy

2005 ◽  
Vol 10 (2) ◽  
pp. 024028 ◽  
Author(s):  
Jun Zhao ◽  
Hai Shu Ding ◽  
Xin Lin Hou ◽  
Cong Le Zhou ◽  
Britton Chance
Keyword(s):  
Optical Properties ◽  
Infrared Spectroscopy ◽  
Frequency Domain ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Infant Brain

scholarly journals A Versatile Setup for Time-Resolved Functional Near Infrared Spectroscopy Based on Fast-Gated Single-Photon Avalanche Diode and on Four-Wave Mixing Laser

2019 ◽  
Vol 9 (11) ◽  
pp. 2366 ◽  
Author(s):  
Laura Di Sieno ◽  
Alberto Dalla Mora ◽  
Alessandro Torricelli ◽  
Lorenzo Spinelli ◽  
Rebecca Re ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Single Photon ◽  
Wave Mixing ◽  
Functional Near Infrared Spectroscopy ◽  
Time Resolved ◽  
Diffusive Medium ◽  
Spectroscopy System

In this paper, a time-domain fast gated near-infrared spectroscopy system is presented. The system is composed of a fiber-based laser providing two pulsed sources and two fast gated detectors. The system is characterized on phantoms and was tested in vivo, showing how the gating approach can improve the contrast and contrast-to-noise-ratio for detection of absorption perturbation inside a diffusive medium, regardless of source-detector separation.

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