A low cost mobile controlled CW-NIRS absolute oximeter to prevent child mortality in low-income countries

Roberto Pagano; Shahbaz Askari; Christian Petersen; Shaylene Beaudry; Dustin Dunsmuir; Matthew O. Wiens; Elias Kumbakumba; Gabrielle Napoleone; J. Mark Ansermino; Guy A. Dumont

doi:10.1117/12.2510769

26 February 2019 A low cost mobile controlled CW-NIRS absolute oximeter to prevent child mortality in low-income countries

Roberto Pagano, Shahbaz Askari, Christian Petersen, Shaylene Beaudry, Dustin Dunsmuir, Matthew O. Wiens, Elias Kumbakumba, Gabrielle Napoleone, J. Mark Ansermino, Guy A. Dumont

Author Affiliations +

Proceedings Volume 10869, Optics and Biophotonics in Low-Resource Settings V; 1086913 (2019) https://doi.org/10.1117/12.2510769
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

According to the WHO, 15,000 children under five years are dying every day from preventable causes with 80% of these children being born in low-income countries. Portable optical medical diagnostic devices can help physicians, nurses and untrained health workers to objectively identify children who are at a higher risk of dying. In the last 2 years, we collected the oxygenation values of the brachioradialis muscle, using a commercial Near Infrared Spectroscopy (NIRS) device, in 200 children under 5 years admitted in two hospitals in Uganda. Data revealed that the tissue oxygen saturation decrease during a vascular occlusion predicts children at higher risk better than other vital signs (SpO₂, respiration rate, heart rate and temperature). Based on these results, we designed a low cost Continuous Wave Spatially Resolved NIRS device controlled by a smartphone in order to extend our study to a larger population and confirm our observation. The total cost of this device (excluding the smartphone) is less than $100. The preliminary tests suggest a significant potential of our low cost mobile NIRS device and oxygenation values closely matching those reported by the best device on the market.

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Roberto Pagano, Shahbaz Askari, Christian Petersen, Shaylene Beaudry, Dustin Dunsmuir, Matthew O. Wiens, Elias Kumbakumba, Gabrielle Napoleone, J. Mark Ansermino, and Guy A. Dumont "A low cost mobile controlled CW-NIRS absolute oximeter to prevent child mortality in low-income countries", Proc. SPIE 10869, Optics and Biophotonics in Low-Resource Settings V, 1086913 (26 February 2019); https://doi.org/10.1117/12.2510769

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KEYWORDS

Near infrared spectroscopy

Tissues

Tissue optics

Oxygen

Absorption

Measurement devices

Light sources

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