Research Papers: Imaging

Simulated altitude exposure assessment by hyperspectral imaging

[+] Author Affiliations
Mihaela Antonina Calin, Sorin Miclos, Roxana Savastru

National Institute of Research and Development for Optoelectronics—INOE 2000, Magurele, Romania

Adrian Macovei, Razvan Hristea

National Institute of Aeronautical and Space Medicine, “Gen. Dr. Aviator Victor Anastasiu,” Bucharest, Romania

Sorin Viorel Parasca

Emergency Clinical Hospital for Plastic, Reconstructive Surgery and Burns, Bucharest, Romania

Carol Davila University of Medicine and Pharmacy, Department of Plastic and Reconstructive Surgery, Bucharest, Romania

J. Biomed. Opt. 22(5), 056012 (May 31, 2017). doi:10.1117/1.JBO.22.5.056012
History: Received January 20, 2017; Accepted May 16, 2017
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Abstract.  Testing the human body’s reaction to hypoxia (including the one generated by high altitude) is important in aeronautic medicine. This paper presents a method of monitoring blood oxygenation during experimental hypoxia using hyperspectral imaging (HSI) and a spectral unmixing model based on a modified Beer–Lambert law. A total of 20 healthy volunteers (males) aged 25 to 60 years were included in this study. A line-scan HSI system was used to acquire images of the faces of the subjects. The method generated oxyhemoglobin and deoxyhemoglobin distribution maps from the foreheads of the subjects at 5 and 10 min of hypoxia and after recovery in a high oxygen breathing mixture. The method also generated oxygen saturation maps that were validated using pulse oximetry. An interesting pattern of desaturation on the forehead was discovered during the study, showing one of the advantages of using HSI for skin oxygenation monitoring in hypoxic conditions. This could bring new insight into the physiological response to high altitude and may become a step forward in air crew testing.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Mihaela Antonina Calin ; Adrian Macovei ; Sorin Miclos ; Sorin Viorel Parasca ; Roxana Savastru, et al.
"Simulated altitude exposure assessment by hyperspectral imaging", J. Biomed. Opt. 22(5), 056012 (May 31, 2017). ; http://dx.doi.org/10.1117/1.JBO.22.5.056012


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