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This article is cited in 22 scientific papers (total in 22 papers)
Application of lasers and laser-optical methods in life sciences
Non-invasive, MRI-compatible fibreoptic device for functional near-IR reflectometry of human brain
H. S. S. Sorvojaa, T. S. Myllyläa, M. Yu. Kirillinb, E. A. Sergeevab, R. A. Myllyläa, A. A. Elseoudc, J. Nikkinenc, O. Tervonenc, V. Kiviniemic a Optoelectronics and Measurements Techniques Laboratory, University of Oulu, Finland
b Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod
c MRI Research Unit, Department of Diagnostic Radiology, Oulu University Hospital, Finland
Abstract:
A non-invasive device for measuring blood oxygen variations in human brain is designed, implemented, and tested for MRI compatibility. The device is based on principles of near-IR reflectometry; power LEDs serve as sources of probing radiation delivered to patient skin surface through optical fibres. Numerical Monte Carlo simulations of probing radiation propagation in a multilayer brain model are performed to evaluate signal levels at different source — detector separations at three operation wavelengths and an additional wavelength of 915 nm. It is shown that the device can be applied for brain activity studies using power LEDs operating at 830 and 915 nm, while employment of wavelength of 660 nm requires an increased probing power. Employment of the wavelength of 592 nm in the current configuration is unreasonable.
Received: 28.10.2010
Citation:
H. S. S. Sorvoja, T. S. Myllylä, M. Yu. Kirillin, E. A. Sergeeva, R. A. Myllylä, A. A. Elseoud, J. Nikkinen, O. Tervonen, V. Kiviniemi, “Non-invasive, MRI-compatible fibreoptic device for functional near-IR reflectometry of human brain”, Kvantovaya Elektronika, 40:12 (2010), 1067–1073 [Quantum Electron., 40:12 (2010), 1067–1073]
Linking options:
https://www.mathnet.ru/eng/qe14503 https://www.mathnet.ru/eng/qe/v40/i12/p1067
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Abstract page: | 270 | Full-text PDF : | 104 | References: | 39 | First page: | 1 |
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