2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine最新文献

{"title":"Implementation of the Personal Emergency Response System using a 3-axial Accelerometer","authors":"A. Jeon, J.H. Kim, I.C. Kim, J. Jung, S. Ye, J. Ro, S. Yoon, J. Son, B.C. Kim, B. Shin, G. Jeon","doi":"10.1109/ITAB.2007.4407387","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407387","url":null,"abstract":"The aged are faced with increasing risk for falls. The aged have the easily fragile bones than others. When falls have occurred, it is important to detect this emergency state because such events often lead to more serious illness or even death. A implementation of PDA system, for detection of emergency situation, was developed using 3-axis accelerometer in this paper as follows. The signals were acquired from the 3-axis accelerometer, and then transmitted to the PDA through Bluetooth module. This system can classify the human activity, and also detect the emergency state like falls. When the fall occurs, the system generates the alarm on the PDA. If a subject does not respond to the alarm, the system determines whether the current situation is an emergency state or not, and then sends some information to the emergency center in the case of urgent situation. Three different studies were conducted on 12 experimental subjects, with results indicating a good accuracy. The first study was performed to detect the posture change of human daily activity. The second study was performed to detect the correct direction of fall. The third study was conducted to check the classification of the daily physical activity. Each test was lasted at least 1 min. in third study. The output of acceleration signal was compared and evaluated by changing a various posture after attaching a 3-axis accelerometer module on the chest. The newly developed system has some important features such as portability, convenience and low cost. One of the main advantages of this system is that it is available at home healthcare environment. Another important feature lies in low cost to manufacture device. The implemented system can detect the fall accurately, so will be widely used in emergency situation.his paper, the PDA system was developed using the 3-axis accelerometer. First, the signals were acquired from the 3-axis accelerometer, and then transmitted to the PDA through Bluetooth module, Acode-300 (Chipsen, Co. Korea). This system can classify the human activity, and also detect the emergency state like falls. When the fall is detected, the system generates the alarm on the PDA. If a subject does not respond to the alarm, the system determines that the current situation is an emergency state, and then sends some information to the emergency center.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132435849","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}

{"title":"The Study on HL7 Message Modeling Algorithm based on uHealthcare Environment","authors":"P. J. Pak, D. I. Shin, S. Huh","doi":"10.1109/ITAB.2007.4407377","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407377","url":null,"abstract":"Health Level Seven (HL7) is the standard of electronic data interchange in the health domain. In This paper, we suggest abstract structure algorithm for modeling HL7 message. Compared with other existing ones, this method optimized uHealthcare environment. When updating HL7 message structure, there is no need to compile entire code. Besides, no speed down results from repetitive request queries.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130101288","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}

{"title":"A Method for Elimination of Common Grating Lobes for Designing Optimum Periodic Sparse Arrays","authors":"Gi-Duck Kim, T. Song","doi":"10.1109/ITAB.2007.4407391","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407391","url":null,"abstract":"We present analytic methods for designing optimum periodic sparse array schemes consisting of periodic transmit and receive sparse arrays with different periodicities. The purpose of this work is to minimize the number of active array elements while suppressing grating lobe levels below a certain desired level. For this purpose, the fundamental conditions for eliminating common grating lobes, ones that occur at the same position on transmit and receive, are derived for a general model of periodic sparse arrays. The proposed design methods are applied to the design of some optimum periodic sparse arrays, of which the results are demonstrated.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116576452","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}

{"title":"Evaluation of MEG source estimation using a phantom which is also capable of detecting source location of anatomical images","authors":"H. Tanaka, T. Kimura, A. Kodabashi, T. Fujimoto, M. Usui, K. Takeuchi, T. Matsumoto, Y. Higashi","doi":"10.1109/ITAB.2007.4407393","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407393","url":null,"abstract":"Cerebral nerve activity estimated by means of magnetoencephalography (MEG) is usually evaluated by fusion with anatomical images such as MRI, X-ray CT. Therefore, in order to diagnose using MEG measurement results, it is very important to consider not only accuracy of MEG source estimation but also total accuracy including fusion with these anatomical images. In this report, we introduce a phantom which is capable of detecting the source location from these anatomical images as well as MEG measurement, and show this phantom can be used for the evaluation of MEG source estimation including fusion with anatomical images.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116056574","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}

{"title":"Patient Monitoring System using Sensor Network Based on the ZigBee Radio","authors":"D. Shin, S. Huh, P. J. Pak","doi":"10.1109/ITAB.2007.4407411","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407411","url":null,"abstract":"In these days of u-healthcare, for convenient monitoring of biological signals, the wireless communication technique is necessary. We have investigated several wireless technologies of biological sensor networking for u-healthcare. There are some standard techniques such as Bluetooth, wireless LAN, Zigbee etc. We have tested these techniques for biological sensor networking and summarize the advantages and the disadvantages. As a result we decided the ZigBee radio as sensor network of patients in the hospital. We developed this patient monitoring system which has several biological parameters. Especially, this system has ability of patient's location awareness in the hospital.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121918611","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}

{"title":"Ubiquitous House and Unconstrained Monitoring Devices for Home Healthcare System","authors":"J.H. Shin, G. Chung, K.K. Kim, J. Kim, B. Hwang, K.S. Park","doi":"10.1109/ITAB.2007.4407381","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407381","url":null,"abstract":"This paper suggests a healthcare monitoring system using unconstrained measurement devices with ubiquitous techniques. These measurement devices are developed into built-in type and sensor type. The first devices are built-in the households (bed, sofa and toilet seat) and measure the patient's heart and respiration activity and estimate a blood pressure. The second devices are placed in a kitchen, front door and every room and detect the patient's movements and activities. All digitized raw signals are transmitted to a main PC using Bluetooth wireless network from all ubiquitous devices and sent to hospital laboratory after an analyzing process. This paper suggest ubiquitous healthcare house (u-House) for a practical models of home healthcare system. And it can monitor the patient's daily health condition and activity in an unconstrained manner.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123535507","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}

{"title":"A Study on EMG-Based Control of Exoskeleton Robots for Human Lower-limb Motion Assist","authors":"H. He, Kazuo Kiguchi","doi":"10.1109/ITAB.2007.4407405","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407405","url":null,"abstract":"An exoskeleton robot is an external structural mechanism with joints and links corresponding to those of the human body. When it is worn, it transmits torques from actuators through rigid exoskeletal links to the human joints. We have been developing exoskeleton robots for assisting the motions of physically weak persons such as elderly or disabled in daily life. In this paper, we propose an electromyogram (EMG) based control (i.e., control based on the skin surface EMG signals of the user) for the exoskeleton robot to assist physically weak person's lower-limb motions. The skin surface EMG signals are mainly used as the input information for the controller. In order to generate flexible and smooth motions and take into account the changing EMG signal levels according to the physical and psychological conditions of the user, fuzzy-neuro control method has been applied for the controller. The experimental results show the effectiveness of the designed EMG-based controller for the power-assist.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125626117","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}

{"title":"Bluetooth Based Wireless Sleep Remote Monitoring System","authors":"K. M. Chang, M.S. Shih, T. Lan, L. Hang","doi":"10.1109/ITAB.2007.4407410","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407410","url":null,"abstract":"Sleep disorder, such as Obstructive sleeps apnoea (OSA), and is now regarded as an important risk factor for cardiovascular diseases. Traditional sleep monitoring system contains several biomedical signals recording set, such as EEG, EOG, EMG ECG respiration and SpO2. The increasing demands of home healthcare for sleep drive studies to monitor sleep by simple method. This paper proposed an ECG-based wireless sleep monitoring system, which contains a Bluetooth-based ECG transmission system, and algorithms to monitor OSA by ECG-derived features, with clustering sensitivity 77% and specificity 90%. This system is believed to be a good candidate to meet the future demand on home-based sleep monitoring, and it can reduce the abundant burdens of hospital sleep centers.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115454140","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}

{"title":"Estimation of the Blood Pressure using Arterial Pressure-Volume Model","authors":"J. Jung, S. Yoon, J.H. Kim, I.C. Kim, A. Jeon, S. Ye, B.C. Kim, B. Shin, J. Ro, K. Nam, Y.J. Kim, G. Jeon","doi":"10.1109/ITAB.2007.4407402","DOIUrl":"https://doi.org/10.1109/ITAB.2007.4407402","url":null,"abstract":"An analysis of the conventional blood pressure estimation method of the oscillometric sphygmomanometer was performed through a computer simulation using an arterial pressure-volume(APV) model. A more accurate blood pressure estimation method was proposed from the analysis. Traditionally, the maximum amplitude algorithm was applied on the oscillation waveforms of the APV model to get the mean arterial pressure and the characteristic ratio. In doing so, the shape of pressure waveforms and the cutoff frequency of high-pass filter circuitry strongly affected the estimation of mean arterial pressure and characteristic ratio. This resulted in errors when estimating blood pressure. To find an algorithm independent from the influence of waveform shapes and filter parameters, the volume oscillation of the APV model and the phase shift of the oscillation with FFT were identified by increasing the cuff pressure from 1 mmHg to 200 mmHg (1 mmHg per second). The phase shift between the ranges of volume oscillation was then only observed between the systolic and diastolic blood pressures. The same results were obtained from simulations performed on two different arterial blood pressure waveforms and one hyperthermia waveform.","PeriodicalId":129874,"journal":{"name":"2007 6th International Special Topic Conference on Information Technology Applications in Biomedicine","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116854015","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}