Sleep apnea termination decreases cerebral blood volume: a near-infrared spectroscopy case study

Jaakko Virtanen; Tommi Noponen; Tapani Salmi; Jussi Toppila; Pekka Meriläinen

doi:10.1117/12.831587

7 July 2009 Sleep apnea termination decreases cerebral blood volume: a near-infrared spectroscopy case study

Jaakko Virtanen, Tommi Noponen, Tapani Salmi, Jussi Toppila, Pekka Meriläinen

Proceedings Volume 7368, Clinical and Biomedical Spectroscopy; 73682D (2009) https://doi.org/10.1117/12.831587
Event: European Conferences on Biomedical Optics, 2009, Munich, Germany

Abstract

Medical near-infrared spectroscopy (NIRS) can be used to estimate cerebral haemodynamic changes non-invasively. Sleep apnea is a common sleep disorder where repetitive pauses in breathing decrease the quality of sleep and exposes the individual to various health problems. We have measured oxygenated and deoxygenated haemoglobin concentration changes during apneic events in sleep from the forehead of one subject using NIRS and used principal component analysis to extract extracerebral and cortical haemodynamic changes from NIRS signals. Comparison of NIRS signals with EEG, bioimpedance, and pulse oximetry data suggests that termination of apnea leads to decreases in cerebral blood volume and flow that may be related to neurological arousal via neurovascular coupling.

Citation Download Citation

Jaakko Virtanen, Tommi Noponen, Tapani Salmi, Jussi Toppila, and Pekka Meriläinen "Sleep apnea termination decreases cerebral blood volume: a near-infrared spectroscopy case study", Proc. SPIE 7368, Clinical and Biomedical Spectroscopy, 73682D (7 July 2009); https://doi.org/10.1117/12.831587

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KEYWORDS

Near infrared spectroscopy

Blood

Hemodynamics

Principal component analysis

Tissue optics

Oxygen

Tissues

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