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Assessing the complexity of short-term heartbeat interval series by distribution entropy
The DistEn would be a promising measure for prompt clinical examination of cardiovascular function and had relatively lower sensitivity to the predetermined parameters and showed stability even for quantifying the complexity of extremely short series. Expand
Analysis of heart rate variability using fuzzy measure entropy
A new entropy measure, Fuzzy Measure Entropy (FuzzyMEn), is proposed for the analysis of heart rate variability (HRV) signals and could be considered as a valid and reliable method for a clinical HRV application. Expand
Effects of handgrip exercise or inorganic nitrate supplementation on 24-h ambulatory blood pressure and peripheral arterial function in overweight and obese middle age and older adults: A pilot RCT.
IHGE or beetroot juice consumption for 7 days did not affect BP or peripheral arterial function in overweight and obese middle age and older adults and ageing may reduce the effects of these interventions on vascular function. Expand
Blood Pressure Estimation Using Photoplethysmography Only: Comparison between Different Machine Learning Approaches
This study developed and compared three machine learning algorithms to estimate BPs using PPG only and revealed that the regression tree algorithm was the best approach with overall acceptable accuracy to ISO standard for BP device validation. Expand
Automatic Detection of Hard Exudates in Color Retinal Images Using Dynamic Threshold and SVM Classification: Algorithm Development and Evaluation
The satisfactory evaluation results on both retinal imaging databases demonstrated the effectiveness of the proposed algorithm for automatic HE detection, by using dynamic threshold and FCM followed by an SVM for classification. Expand
Non-invasive quantification of peripheral arterial volume distensibility and its non-linear relationship with arterial pressure.
The inverse and non-linear relationship between arterial volume distensibility and arterial pressure has been quantified using a simple arm positioning procedure, with the greatest effect at low pressures. Expand
Recent development of respiratory rate measurement technologies.
Current works are summarized to suggest key directions for the development of future RR monitoring methodologies and the merits and limitations of each method are highlighted and discussed. Expand
A low-complexity data-adaptive approach for premature ventricular contraction recognition
A low-complexity data-adaptive PVC recognition approach with good robustness against noise and generalization capability is developed, demonstrating a good potential in real-time application. Expand
Modeling carotid and radial artery pulse pressure waveforms by curve fitting with Gaussian functions
Abstract Modeling arterial pressure waveforms holds the potential for identifying physiological changes. There is a clinical need for a simple waveform analysis method with a high accuracy inExpand
Quantitative Comparison of Photoplethysmographic Waveform Characteristics: Effect of Measurement Site
This study quantitatively confirmed the effect of PPG measurement site on PPG waveform characteristics (including mean amplitude, Tp, Tn, and RI), providing scientific evidence for a better understanding of the PPGWaveform variations between different body sites. Expand