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http://dx.doi.org/10.7236/JIWIT.2011.11.6.319

Compensation of Skin Surface Temperature Variation on the PPG for the U-Healthcare System  

Yeom, Ho-Jun (을지대학교 의료공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.11, no.6, 2011 , pp. 319-324 More about this Journal
Abstract
This study aims to investigate statistical variations and relationships of blood pressure (BP), phtotplethysmography (PPG) and cardiovascular parameters on changes in local skin surface temperature (SST) during gradual cooling and heating. Results showed that local SST changes affected the Finometer BP, the PPG waveforms and total peripheral resistance, but not oscillometric BP, heart rate, stroke volume and cardiac output. Therefore, in order to reduce for the errors, temperatures should be controlled or compensated when components of the PPG waveform are used to evaluate cardiovascular status in temperature variation environments.
Keywords
PPG; skin surface temperature; gradual temperature variation; cardiovascular status; U-healthcare;
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