Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360104
Yuan-ting Zhang, C. Poon, C. Chan, M. Tsang, K. Wu
This paper proposes a health-shirt (h-Shirt) using e-textile materials for long-term and continuous monitoring of physiological parameters, including arterial blood pressure (BP) by a cuffless approach. BP measurements using the h-Shirt and the setup of a calibration technique for this approach were tested on 10 and 5 subjects respectively. The results demonstrated the potential of integrating the calibration and measurement techniques on the h-Shirt to develop a wearable, hands-free system for monitoring users' BP around the clock. Based on the h-Shirt, a convertible, universal health-suit (CUHS) is suggested to include both monitoring functions and bio-feedback mechanisms for real-time health management. The development of the h-Shirt and CUHS is instigated by our researches on building wearable intelligent sensors and systems for e-health (WISSH).
{"title":"A Health-Shirt using e-Textile Materials for the Continuous and Cuffless Monitoring of Arterial Blood Pressure","authors":"Yuan-ting Zhang, C. Poon, C. Chan, M. Tsang, K. Wu","doi":"10.1109/ISSMDBS.2006.360104","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360104","url":null,"abstract":"This paper proposes a health-shirt (h-Shirt) using e-textile materials for long-term and continuous monitoring of physiological parameters, including arterial blood pressure (BP) by a cuffless approach. BP measurements using the h-Shirt and the setup of a calibration technique for this approach were tested on 10 and 5 subjects respectively. The results demonstrated the potential of integrating the calibration and measurement techniques on the h-Shirt to develop a wearable, hands-free system for monitoring users' BP around the clock. Based on the h-Shirt, a convertible, universal health-suit (CUHS) is suggested to include both monitoring functions and bio-feedback mechanisms for real-time health management. The development of the h-Shirt and CUHS is instigated by our researches on building wearable intelligent sensors and systems for e-health (WISSH).","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123857101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360107
K. Wu, C. Chan, Yuan-ting Zhang
Blood pressure (BP) can be measured cufflessly and noninvasively by using pulse transit time, which is obtained from simultaneously recorded electrocardiogram (ECG) and photoplethysmogram (PPG). To apply this BP monitoring technique in daily life, an office chair was modified into a contactless and cuffless BP-monitoring device using e-textile materials. In this study, twelve normotensive subjects, including 6 males and 6 females, were recruited for testing this BP-monitoring chair. During the experiment, exercise was carried out to obtain a wider range of BP. In total, 62 pairs of systolic BP (SBP) and diastolic BP (DBP) estimations were made. Readings from a clinically approved cuff-based automatic BP monitor was used as reference. The results showed that the estimated SBP and DBP differed from their references by -6.3plusmn10.5 mmHg and -0.7plusmn4.9 mmHg respectively. It was found that the SBP estimation errors mainly came from the data obtained immediately after exercise. Further improvement should be made to minimize those errors. However, this concept is potentially useful in self BP monitoring for home healthcare.
{"title":"Contactless and Cuffless Monitoring of Blood Pressure on a Chair Using E-Textile Materials","authors":"K. Wu, C. Chan, Yuan-ting Zhang","doi":"10.1109/ISSMDBS.2006.360107","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360107","url":null,"abstract":"Blood pressure (BP) can be measured cufflessly and noninvasively by using pulse transit time, which is obtained from simultaneously recorded electrocardiogram (ECG) and photoplethysmogram (PPG). To apply this BP monitoring technique in daily life, an office chair was modified into a contactless and cuffless BP-monitoring device using e-textile materials. In this study, twelve normotensive subjects, including 6 males and 6 females, were recruited for testing this BP-monitoring chair. During the experiment, exercise was carried out to obtain a wider range of BP. In total, 62 pairs of systolic BP (SBP) and diastolic BP (DBP) estimations were made. Readings from a clinically approved cuff-based automatic BP monitor was used as reference. The results showed that the estimated SBP and DBP differed from their references by -6.3plusmn10.5 mmHg and -0.7plusmn4.9 mmHg respectively. It was found that the SBP estimation errors mainly came from the data obtained immediately after exercise. Further improvement should be made to minimize those errors. However, this concept is potentially useful in self BP monitoring for home healthcare.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124892325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360102
Diksha Neel, U. Tiwary
Information aggregation in Wireless Sensor Networks provides for energy-efficiency for energy-constrained nodes to increase life-time of the network. This is achieved by processing data as it flows from information sources to sinks. The decision of when to "clock out" data as it is processed by nodes has significant performance impact in terms of energy-efficiency, data accuracy and freshness. Solis et al. have proposed `Cascading timeout' in [1]. In this paper, we propose cascading timeout that is aware of the value or significance of data to be sent. By simulation results we show that this scheme achieves energy efficiency while keeping data accuracy same.
{"title":"Data-value Aware Cascading Time-out for Informnation Aggregation in WSN","authors":"Diksha Neel, U. Tiwary","doi":"10.1109/ISSMDBS.2006.360102","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360102","url":null,"abstract":"Information aggregation in Wireless Sensor Networks provides for energy-efficiency for energy-constrained nodes to increase life-time of the network. This is achieved by processing data as it flows from information sources to sinks. The decision of when to \"clock out\" data as it is processed by nodes has significant performance impact in terms of energy-efficiency, data accuracy and freshness. Solis et al. have proposed `Cascading timeout' in [1]. In this paper, we propose cascading timeout that is aware of the value or significance of data to be sent. By simulation results we show that this scheme achieves energy efficiency while keeping data accuracy same.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122076279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360119
S. Patel, T. Hester, R. Hughes, N. Huggins, D. Standaert, Alice, A. Flaherty, P. Bonato
Parkinson's disease is a common movement disorder and affects many older adults. The use of deep brain stimulation has been shown to have good results in symptom reduction, but quantitative methods for the adjustment of deep brain stimulator parameters are required. In this paper, we show that features derived from wearable sensors (accelerometers) are able to characterize changes in the severity of bradykinesia observed when turning the stimulator off and on as well as changes while the stimulator is off for a period of time. We also demonstrate results derived by means of predictors that accurately estimated the clinical scores associated with the motor activities performed during the experiments. These preliminary results are very encouraging and show the potential for the developed methodology to provide clinicians with assistance in adjusting deep brain stimulator parameters.
{"title":"Using Wearable Sensors to Enhance DBS Parameter Adjustment for Parkinson's Disease Patients Through Measures of Motor Response","authors":"S. Patel, T. Hester, R. Hughes, N. Huggins, D. Standaert, Alice, A. Flaherty, P. Bonato","doi":"10.1109/ISSMDBS.2006.360119","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360119","url":null,"abstract":"Parkinson's disease is a common movement disorder and affects many older adults. The use of deep brain stimulation has been shown to have good results in symptom reduction, but quantitative methods for the adjustment of deep brain stimulator parameters are required. In this paper, we show that features derived from wearable sensors (accelerometers) are able to characterize changes in the severity of bradykinesia observed when turning the stimulator off and on as well as changes while the stimulator is off for a period of time. We also demonstrate results derived by means of predictors that accurately estimated the clinical scores associated with the motor activities performed during the experiments. These preliminary results are very encouraging and show the potential for the developed methodology to provide clinicians with assistance in adjusting deep brain stimulator parameters.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122151268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360097
K. Oguchi, Y. Okazaki, S. Terada, K. Okada, K. Tojo
Vital information sensing is the key to coping with the coming aging society. The home network will be the infrastructure best placed to provide such functionality. The next generation convergence home network, proposed by the authors, is described, together with a functional block diagram that demonstrates the vital information application. Experiments confirming the feasibility of the system are also described and discussed.
{"title":"Vital Information Sensing in the Next Generation Convergence Home Network","authors":"K. Oguchi, Y. Okazaki, S. Terada, K. Okada, K. Tojo","doi":"10.1109/ISSMDBS.2006.360097","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360097","url":null,"abstract":"Vital information sensing is the key to coping with the coming aging society. The home network will be the infrastructure best placed to provide such functionality. The next generation convergence home network, proposed by the authors, is described, together with a functional block diagram that demonstrates the vital information application. Experiments confirming the feasibility of the system are also described and discussed.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"440 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123099075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360084
M. Di Rienzo, F. Rizzo, P. Meriggi, B. Bordoni, G. Brambilla, M. Ferratini, P. Castiglioni
A textile-based wearable system, named MagIC (Maglietta Interattiva Computerizzata) has been recently developed for the unobtrusive recording of cardiorespiratory and motion signals during spontaneous behavior. The system is composed of a vest, including textile sensors for ECG and breathing frequency detection, and a portable electronic board for motion assessment, signal preprocessing and wireless data transmission to a remote computer. In this study the MagIC System has been used to monitor vital signs in cardiac inpatients and in healthy subjects during exercise and under gravitational stress. All recordings showed a correct identification of arrhythmic events and a correct estimation of RR Interval. The positive results obtained in this study support the routine use of the system in a clinical setting, experimental environments, daily life conditions and sport.
{"title":"Applications of a Textile-Based Wearable System in clinics, exercise and under gravitational stress","authors":"M. Di Rienzo, F. Rizzo, P. Meriggi, B. Bordoni, G. Brambilla, M. Ferratini, P. Castiglioni","doi":"10.1109/ISSMDBS.2006.360084","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360084","url":null,"abstract":"A textile-based wearable system, named MagIC (Maglietta Interattiva Computerizzata) has been recently developed for the unobtrusive recording of cardiorespiratory and motion signals during spontaneous behavior. The system is composed of a vest, including textile sensors for ECG and breathing frequency detection, and a portable electronic board for motion assessment, signal preprocessing and wireless data transmission to a remote computer. In this study the MagIC System has been used to monitor vital signs in cardiac inpatients and in healthy subjects during exercise and under gravitational stress. All recordings showed a correct identification of arrhythmic events and a correct estimation of RR Interval. The positive results obtained in this study support the routine use of the system in a clinical setting, experimental environments, daily life conditions and sport.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114739296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360101
D. Padula, Antonio A. O. Cameiro, Oswaldo Baffa
Generally, breast tumors are much stiffer than the surrounding tissue. The strain stress curves are common to the tissue characterization. Conventional system uses a dynamic and static deformation with controlled amplitude. In this work, we present a new deformation system which the displacement amplitude is dependent on the mechanical properties of the sample. This system is composed by a modified loudspeaker. A dedicated magnetic sensor is used to register the deformation amplitude. The variation in the load is also registered using a sensitivity load cell.
{"title":"Biomechanical sensor to analyze the viscoelastic properties of biological tissues","authors":"D. Padula, Antonio A. O. Cameiro, Oswaldo Baffa","doi":"10.1109/ISSMDBS.2006.360101","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360101","url":null,"abstract":"Generally, breast tumors are much stiffer than the surrounding tissue. The strain stress curves are common to the tissue characterization. Conventional system uses a dynamic and static deformation with controlled amplitude. In this work, we present a new deformation system which the displacement amplitude is dependent on the mechanical properties of the sample. This system is composed by a modified loudspeaker. A dedicated magnetic sensor is used to register the deformation amplitude. The variation in the load is also registered using a sensitivity load cell.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124469640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2006-09-01DOI: 10.1109/ISSMDBS.2006.360083
M. Maccioni, E. Orgiu, P. Cosseddu, S. Locci, A. Bonfiglio
In this paper we show a possible perspective for networks of distributed sensors based on organic field effect transistors assembled on a yarn. The electronic yarn will allow to obtain matrices of sensors assembled by textile technology and will ensure to obtain for wearable devices the necessary properties of drapability and conformity to the body.
{"title":"The textile transistor: a perspective for distributed, wearable networks of sensor devices","authors":"M. Maccioni, E. Orgiu, P. Cosseddu, S. Locci, A. Bonfiglio","doi":"10.1109/ISSMDBS.2006.360083","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360083","url":null,"abstract":"In this paper we show a possible perspective for networks of distributed sensors based on organic field effect transistors assembled on a yarn. The electronic yarn will allow to obtain matrices of sensors assembled by textile technology and will ensure to obtain for wearable devices the necessary properties of drapability and conformity to the body.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130388127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-10-25DOI: 10.1109/ISSMDBS.2006.360113
H. Cheyne
Quantifying vocal function is becoming increasingly important both for corroborating clinicians' subjective impressions during a voice evaluation and for assessing the effectiveness of surgery or voice therapy. Accelerometers offer significant potential for measuring voice use because they are immune to environmental noise, inexpensive, and suitable for ambulatory monitoring. This work investigates the extent to which measures of the acceleration of the skin on the neck (near the larynx) can be used to estimate important vocal function parameters. Simultaneous acceleration, acoustic, and airflow recordings from one male subject with a normal voice were made to initially examine relationships between the acceleration signal and the acoustic or airflow signals. A vocal system model is proposed to provide insights into these relationships. The model's acceleration-derived estimates of maximum flow declination rate (MFDR) and sound pressure level (SPL) are compared to direct measures obtained from the airflow (MFDR) and acoustic (SPL) signals at the lips. Results show high correlations between the estimated and measured MFDR (r=0.86) and SPL (r=0.94) values, suggesting that clinically relevant parameters can be derived from accelerometer data using a vocal system model.
{"title":"Estimating Glottal Voicing Source Characteristics by Measuring and Modeling the Acceleration of the Skin on the Neck","authors":"H. Cheyne","doi":"10.1109/ISSMDBS.2006.360113","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360113","url":null,"abstract":"Quantifying vocal function is becoming increasingly important both for corroborating clinicians' subjective impressions during a voice evaluation and for assessing the effectiveness of surgery or voice therapy. Accelerometers offer significant potential for measuring voice use because they are immune to environmental noise, inexpensive, and suitable for ambulatory monitoring. This work investigates the extent to which measures of the acceleration of the skin on the neck (near the larynx) can be used to estimate important vocal function parameters. Simultaneous acceleration, acoustic, and airflow recordings from one male subject with a normal voice were made to initially examine relationships between the acceleration signal and the acoustic or airflow signals. A vocal system model is proposed to provide insights into these relationships. The model's acceleration-derived estimates of maximum flow declination rate (MFDR) and sound pressure level (SPL) are compared to direct measures obtained from the airflow (MFDR) and acoustic (SPL) signals at the lips. Results show high correlations between the estimated and measured MFDR (r=0.86) and SPL (r=0.94) values, suggesting that clinically relevant parameters can be derived from accelerometer data using a vocal system model.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127273103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.1109/ISSMDBS.2006.360111
Jae Hyuk Shin, Y. Chee, Myungsoo Lee, K. Park
In this paper, we present the wearable workload analysis system that is designed to evaluate the workload and mental stress of operators which employed on power plant. The hardware parts and software part of the wireless sensor system is described which plays an important role in workload analysis system. The software system processes ECG, respiration, EDA, activity signal and extracts some information about worker's conditions. The result of this experiment is reveal that our designed system is suitable for measuring psychophysiological signal from works by non-invasive and comfort method. And derived workload index equation is well reflect the work level and degree of mental stress.
{"title":"A Multiparameter Wearable Workload Analysis System for Power Plant Operators","authors":"Jae Hyuk Shin, Y. Chee, Myungsoo Lee, K. Park","doi":"10.1109/ISSMDBS.2006.360111","DOIUrl":"https://doi.org/10.1109/ISSMDBS.2006.360111","url":null,"abstract":"In this paper, we present the wearable workload analysis system that is designed to evaluate the workload and mental stress of operators which employed on power plant. The hardware parts and software part of the wireless sensor system is described which plays an important role in workload analysis system. The software system processes ECG, respiration, EDA, activity signal and extracts some information about worker's conditions. The result of this experiment is reveal that our designed system is suitable for measuring psychophysiological signal from works by non-invasive and comfort method. And derived workload index equation is well reflect the work level and degree of mental stress.","PeriodicalId":409380,"journal":{"name":"2006 3rd IEEE/EMBS International Summer School on Medical Devices and Biosensors","volume":"212 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121218859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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