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Proceedings Paper

Attenuation of motion artifact in near infrared spectroscopy signals using a wavelet based method
Author(s): Behnam Molavi; Guy D. Dumont; Babak Shadgan; Andrew J. Macnab
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Paper Abstract

The sensitivity of Near Infrared Spectroscopy (NIRS) signals to motion artifact can limit practical applications of NIRS monitoring. We describe a wavelet based method for removing motion artifact from NIRS signals. This method was tested on monitoring data collected from leg muscle in 3 patients undergoing surgery to stabilize leg fractures. The results show an average of 18.36 dB attenuation in motion artifact energy in the NIRS signal for our test subjects when using the proposed method, without the introduction of significant distortion in the artifact-free regions of the signal.

Paper Details

Date Published: 21 February 2011
PDF: 7 pages
Proc. SPIE 7890, Advanced Biomedical and Clinical Diagnostic Systems IX, 78900M (21 February 2011); doi: 10.1117/12.875741
Show Author Affiliations
Behnam Molavi, The Univ. of British Columbia (Canada)
Guy D. Dumont, The Univ. of British Columbia (Canada)
Babak Shadgan, Vancouver Coastal Health Research Institute (Canada)
Andrew J. Macnab, The Univ. of British Columbia (Canada)
Stellenbosch Institute for Advanced Study (South Africa)


Published in SPIE Proceedings Vol. 7890:
Advanced Biomedical and Clinical Diagnostic Systems IX
Anita Mahadevan-Jansen; Tuan Vo-Dinh; Warren S. Grundfest M.D., Editor(s)

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