22 May 2014 Dynamic tissue phantoms and their use in assessment of a noninvasive optical plethysmography imaging device
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Abstract
Non-contact photoplethysmography (PPG) has been studied as a method to provide low-cost and non-invasive medical imaging for a variety of near-surface pathologies and two dimensional blood oxygenation measurements. Dynamic tissue phantoms were developed to evaluate this technology in a laboratory setting. The purpose of these phantoms was to generate a tissue model with tunable parameters including: blood vessel volume change; pulse wave frequency; and optical scattering and absorption parameters. A non-contact PPG imaging system was evaluated on this model and compared against laser Doppler imaging (LDI) and a traditional pulse oximeter. Results indicate non-contact PPG accurately identifies pulse frequency and appears to identify signals from optically dense phantoms with significantly higher detection thresholds than LDI.
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Jeffrey E. Thatcher, Jeffrey E. Thatcher, Kevin D. Plant, Kevin D. Plant, Darlene R. King, Darlene R. King, Kenneth L. Block, Kenneth L. Block, Wensheng Fan, Wensheng Fan, J. Michael DiMaio, J. Michael DiMaio, } "Dynamic tissue phantoms and their use in assessment of a noninvasive optical plethysmography imaging device", Proc. SPIE 9107, Smart Biomedical and Physiological Sensor Technology XI, 910718 (22 May 2014); doi: 10.1117/12.2049607; https://doi.org/10.1117/12.2049607
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