Accelerometer-based method for correcting signal baseline changes caused by motion artifacts in medical near-infrared spectroscopy.

  title={Accelerometer-based method for correcting signal baseline changes caused by motion artifacts in medical near-infrared spectroscopy.},
  author={Jaakko Virtanen and Tommi E. Noponen and Kalle Kotilahti and Juha Virtanen and Risto J. Ilmoniemi},
  journal={Journal of biomedical optics},
  volume={16 8},
In medical near-infrared spectroscopy (NIRS), movements of the subject often cause large step changes in the baselines of the measured light attenuation signals. This prevents comparison of hemoglobin concentration levels before and after movement. We present an accelerometer-based motion artifact removal (ABAMAR) algorithm for correcting such baseline motion artifacts (BMAs). ABAMAR can be easily adapted to various long-term monitoring applications of NIRS. We applied ABAMAR to NIRS data… 

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