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Arterial Stiffness Using Radial Arterial Waveforms Measured at the Wrist as an Indicator of Diabetic Control in the Elderly

Arterial Stiffness Using Radial Arterial Waveforms Measured at the Wrist as an Indicator of Diabetic Control in the Elderly,10.1109/TBME.2010.2084087,

Arterial Stiffness Using Radial Arterial Waveforms Measured at the Wrist as an Indicator of Diabetic Control in the Elderly   (Citations: 3)
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Although current technique of photoplethysmogra- phy (PPG) is a popular noninvasive method of waveform con- tour analysis in assessing arterial stiffness, data obtained are frequently affected by various environmental and physiological factors. We proposed an easily operable air pressure sensing sys- tem (APSS) for radial arterial signal capturing. Totally, 108 sub- jects (young, the aged with or without diabetes) were recruited from July 2009 to May 2010. Arterial waveform signals from the wrist were obtained and analyzed using Hilbert-Huang transfor- mation (HHT). Through ensemble empirical mode decomposition (EEMD), the signals were decomposed into eight intrinsic mode functions (IMF1-8) of which IMF5 was found to be the desired signal with a discernible diastolic peak. The results showed signif- icant differences in reflection index (RI) and stiffness index (SI) from the young subjects and those from the aged participants with or without diabetes. Significant differences in RI and SI were also noted between subjects with well-controlled diabetes and those without. Good reproducibility and correlation were demonstrated. In conclusion, the present study proposed the application of radial arterial signal capturing subsystem and HHT in acquiring more reliable data on RI and SI compared with the conventional PPG method.
Journal: IEEE Transactions on Biomedical Engineering - IEEE TRANS BIOMED ENG , vol. 58, no. 2, pp. 243-252, 2011
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    • ...Diabetes was defined as either a fasting sugar higher than 126 mg/dL or glycosylated hemoglobin (HbA1c) > 6.5% [8]...

    Hsien-Tsai Wuet al. Multiscale Entropy Analysis of Pulse Wave Velocity for Assessing Ather...

    • ...We have previously validated the application of an air pressure sensing system (APSS) [4], [5] on the wrist in evaluating endothelial function based on RH using a Dilatation index (DI) which shows an excellent reproducibility and also a significant correlation with the RH-PAT index among young healthy subjects...
    • ...One pressure cuff of the air pressure sensing system (APSS) was then put around the left arm, whereas the other cuff was applied on the left wrist [4], [5]...
    • ...The structure and principle of operation of APSS has previously been reported in our previous study�≥ [4], [5]...
    • ...The present study utilized the air pressure sensing system (APSS) that we previously proposed to record the signals of arterial pulsations from the wrist before and after application of pressure on the upper arm [4], [5]...

    Chun-Ho Leeet al. Multiscale entropy indicates vascular abnormalities in the aged

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