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A new multichannel broadband NIRS system for quantitative monitoring of brain hemodynamics and metabolism during seizures

De Roever, I; Vezyroglou, A; Hebden, P; Thornton, R; Worley, A; Alves, M; Dean, E; ... Tachtsidis, I; + view all (2019) A new multichannel broadband NIRS system for quantitative monitoring of brain hemodynamics and metabolism during seizures. In: Dehghani, H and Wabnitz, H, (eds.) Diffuse Optical Spectroscopy and Imaging VII. SPIE: Munich, Germany. Green open access

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Abstract

We present a newly developed multichannel broadband NIRS (or bNIRS) system that has the capacity to measure changes in light attenuation of 308 NIR wavelengths (610nm to 918nm) simultaneously over 16 different brain locations. To achieve this the instrument uses a lens based spectrometer with a front-illuminated CCD that has a sensor size of 26.8x26mm. This large CCD detector allows the simultaneous binning of 16 detector fibres. The software uses the UCLn algorithm to quantify the changes in oxy-, deoxy- haemoglobin concentration (HbO2, HHb) and oxidised cytochrome-coxidase (oxCCO) simultaneously over 16 different brain locations with 1second sampling rate. We demonstrate the use of the instrument in quantifying brain tissue oxygenation and metabolic activity simultaneously with electrical changes as measured with EEG in children with seizures.

Type: Proceedings paper
Title: A new multichannel broadband NIRS system for quantitative monitoring of brain hemodynamics and metabolism during seizures
Event: European Conferences on Biomedical Optics, 2019
Open access status: An open access version is available from UCL Discovery
DOI: 10.1117/12.2527067
Publisher version: https://doi.org/10.1117/12.2527067
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Developmental Neurosciences Dept
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10089130
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