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Article
Open AccessInstantaneous frequency from Hilbert-Huang transformation of digital volume pulse as indicator of diabetes and arterial stiffness in upper-middle-aged subjects
To investigate the value of decomposed short-time digital volume pulse (DVP) signals in discerning systemic vascular anomaly in diabetic patients, demographic and anthropometric parameters, serum lipid profile...
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Article
Assessment of Subtle Changes in Diabetes-Associated Arteriosclerosis using Photoplethysmographic Pulse Wave from Index Finger
Distortions in macro- and microcirculation are principal contributors to diabetes-associated complications. This study aimed at investigating the validity of applying non-invasive photoplethysmographic (PPG) w...
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Article
Application of Short-Time MSE in Assessing Impact of Acupuncture on Peripheral Blood Flow and Autonomic Activities in Normal and Overweight Subjects
Zusanli (ST-36) is one of the four most important acupoints in traditional Chinese medicine because it is believed to co-ordinate the functions of the immunological and gastrointestinal systems. We test the hy...
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Article
Application of multiscale entropy in arterial waveform contour analysis in healthy and diabetic subjects
We applied multiscale entropy (MSE) to assess variation in crest time (CT), a parameter in arterial waveform analysis, in diagnosing patients with diabetes. Data on digital volume pulse were obtained from 93 ...
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Article
Penile Arterial Waveform Analyzer for Assessing Penile Vascular Function in Young Adults
Not only does erectile dysfunction (ED) reflect penile vascular disorder in the majority of patients, but it also implicates their high systemic cardiovascular risk. Based on the principle of reactive hyperemi...
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Article
Measuring Pulse Wave Velocity Using ECG and Photoplethysmography
Pulse wave velocity (PWV) is a useful method to assess arterial stiffness and predict mortality of atherosclerosis-related diseases. The progression of atherosclerosis is not homogeneous. There must be differe...
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Article
Assessment of Endothelial Function Using Arterial Pressure Signals
Peripheral arterial tonometry (PAT) is a useful method to assess endothelial function. Analysis of pulse wave amplitude with PAT during reactive hyperemia can be used to study peripheral vascular endothelial f...
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Article
Wavelet-based Interpolation Scheme for Resolution Enhancement of Medical Images
A novel interpolation method for resolution enhancement is proposed in this paper. This method estimates wavelet coefficients in the high frequency subbands from a low resolution image using our proposed filte...
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Chapter and Conference Paper
Implementation of Trajectory Analysis System for Metabolic Syndrome Detection
Metabolic syndrome is not only a major public health problem in the United States and other developed countries but also is associated with increased risk for diabetes and coronary heart disease (CHD). This st...
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Chapter and Conference Paper
A Reliable Measurement to Assess Atherosclerosis of Differential Arterial Systems
There are several assessments used to measure pulse wave velocity. We have ever designed an instrument to measure brachial-femoral pulse wave velocity by photoplethysmograpy with infrared sensors. This method ...
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Article
Open AccessTeaching Challenge in Hands-on DSP Experiments for Night-School Students
The rapid increase in digital signal processing (DSP) applications has generated a strong demand for electrical engineers with DSP backgrounds; however, the gap between industry needs and university curricula ...
