Browsing by Author "Hou, Mark C."

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A +/- 6ms-Accuracy, 0.68mm(2) and 2.21 mu W QRS Detection ASIC
(2010)
Wang, Hui-Min
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Lai, You-Liang
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Hou, Mark C.
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Lin, Shih-Hsiang
;
Yen, Brad S.
Healthcare issues arose from population aging. Meanwhile, electrocardiogram (ECG) is a powerful measurement tool. The first step of ECG is to detect QRS complexes. A state-of-the-art QRS detection algorithm was modified and implemented. By the dedicated architecture design, the novel ASIC is proposed with 2.21 mu W power consumption and 0.68mm(2) core area. It is the smallest QRS detection ASIC so far in the world. In addition, the positive prediction of the ASIC is 99.36% based on the MIT/BIH arrhythmia database certification.
A computerized system of nail-fold capillaroscopy for dry eye disease diagnosis
(2012-12-01)
Hou, Mark C.
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Huang, Sheng-Chieh
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Wang, Hui-Min
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Tseng, Cheng-Lung
;
Lo, Lun-Chien
Nail-fold Capillaroscopy is a convenient and non-invasive tool to evaluate peripheral circulation. Rheumatic diseases such as Raynaud's disease and systemic sclerosis are investigated mostly by nail-fold capillaroscopy. However, it has not been used popularly due to the lack of golden standard in both measurement procedure and objective quantity analysis. This study proposes a computerized system of nail-fold capillaroscopy (CNC). CNC includes standard measurement procedures and three criterions of microcirculation which are capillary density, capillary width and blood flow velocity. CNC is applied to the images of 36 normal subjects and seven patients of dry eye disease (DED). We found density and width of afferent capillary were the better parameters to identify DED (p < 0.05). CNC could be a good auxiliary diagnostic tool for DED.
HRV Response of Vegetative State Patient with Music Therapy
(2011)
Lee, Yaw-Chern
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Lei, Chun-Yang
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Shih, Yi-Sen
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Zhang, Wen-Chih
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Wang, Hui-Min
This case study centered on the effects of Music Therapy (MT) on vegetative state (VS) patients for a continuous 41-day experiment with electrocardiogram (ECG) recorded. Mahler's Second Symphony was used for this MT. There are various elements in Mahler's second symphony, with string, wind, drum, and even voice; providing the subject a strong and dynamic stimulation. There are some significant changes after 14-day stimulation: both standard deviation of all normal RR intervals (SDNN) and root mean square successive differences (RMSSD) in heart rate variability of the subject increased, indicating the activity of the cardiovascular system was enhanced. Although there's only one subject in this experiment, the results are still encouraging.
The Relationship between Music Processing and Electrocardiogram (ECG) in Vegetative State (VS)
(2010)
Yen, Brad S.
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Wang, Hui-Min
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Hou, Mark C.
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Huang, Sheng-Chieh
;
Chou, Lei-Chun
Previous literature has suggested that consciousness of patients in vegetative state (VS) may be enhanced via music listening; however, studies empirically documenting the link among music, vegetative state, and electrocardiogram (ECG) are scant. Therefore, the current article attempts to explore how music improves the VS patient's condition with the assessment of ECG recordings. The present work involved a follow-up of case report, consisting of forty-two 150-min sessions, whose duration is longer than other VS studies. The quantitative analysis of the data was conducted through C programming language, HRV Analysis, EXCEL and MATLAB package software in order to find a specific pattern of HRV. Results of the study showed a medium level of consistence between the two variables of music and ECG. To conclude, this publication may be of importance in presenting some specific pattern of the ECG diagram while letting VS patients listen to the music.