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2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)最新文献

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Heating properties of resonant cavity applicator for treating rheumatoid arthritis by using 3-D FEM knee model 基于三维有限元膝关节模型的类风湿关节炎谐振腔应用器发热特性研究
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521736
Kazuki Watanabe, H. Kurosaki, M. Kubo, Kenji Takahashi, Kazuo Kato, Y. Shindo
{"title":"Heating properties of resonant cavity applicator for treating rheumatoid arthritis by using 3-D FEM knee model","authors":"Kazuki Watanabe, H. Kurosaki, M. Kubo, Kenji Takahashi, Kazuo Kato, Y. Shindo","doi":"10.1109/ISMICT.2013.6521736","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521736","url":null,"abstract":"This paper describes the heating properties of the resonant cavity applicator with the developed three-dimensional (3-D) anatomical human knee model using the finite element method (FEM). We proposed a new heating method for rheumatism rehabilitation. In this method, a human knee is placed in the gap between two inner electrodes and is non-invasively heated with electromagnetic fields stimulated inside the cavity. First, a method of reconstructing a three-dimensional (3-D) anatomical human knee model from two-dimensional (2-D) magnetic resonance imaging (MRI) and X-ray computerized tomography (CT) images was described. Second, the results of the specific absorption rate (SAR) distributions of this heating system with the developed 3-D anatomical human knee model were presented. Third, the results of specific absorption rate (SAR) were discussed. From these results, it was found that our method is useful for heating deep places in the knee joint.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124887488","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}
引用次数: 4
An integrated surface EMG data acquisition system for sports medicine applications 一种用于运动医学应用的综合表面肌电数据采集系统
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521708
A. P. Vinod, C. Da
{"title":"An integrated surface EMG data acquisition system for sports medicine applications","authors":"A. P. Vinod, C. Da","doi":"10.1109/ISMICT.2013.6521708","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521708","url":null,"abstract":"This paper presents the design and implementation of a PC-based integrated surface electromyogram (SEMG) data acquisition system for the measurement of electrical activity of muscles, efficiency of electrical activity, explosion power (response velocity), and fatigue degree. These parameters are most imperative to physical assessment in sports medicine. The system's hardware consists of four basic units which are detection units, signal conditioning unit, signal processing unit and multi-channel analog to digital converter unit. The graphical user interface displays the EMG signal waveform and extracted parameters. The experiments validated the linear relationship between muscle electrical activity and tension level. Our results show that male subjects are more efficient than female subjects in using lesser energy for a given tension level. However, female subjects exhibited lower explosion power (faster response) than male subjects.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121784183","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}
引用次数: 8
Heating analysis of resonant cavity applicator with blood perfusion 血流灌注时谐振腔涂敷器的发热分析
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521734
L. Arakawa, J. Nagasawa, Y. Shindo, Kazuo Kato, M. Kubo, T. Uzuka, Hideaki Takahashi
{"title":"Heating analysis of resonant cavity applicator with blood perfusion","authors":"L. Arakawa, J. Nagasawa, Y. Shindo, Kazuo Kato, M. Kubo, T. Uzuka, Hideaki Takahashi","doi":"10.1109/ISMICT.2013.6521734","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521734","url":null,"abstract":"This paper describes the heating properties of a resonant cavity applicator for heating brain tumors, calculated by a finite element method (FEM) with blood perfusion. We have already proposed the resonant cavity applicator for treating brain tumors and checked the effectiveness of the applicator experimentally, using a prototype heating system with an agar phantom. In this paper, first, we constructed a simple model with blood vessels for calculating temperature distributions using the FEM. In the simple model, a single thick blood vessel branches into two narrow blood vessels. Second, calculated temperature distributions were presented by solving the heat-flow equation, respectively. Also, a comparison of the temperature distributions when the flow conditions were changed were discussed. From these results, it was found that the cooling effects of blood perfusion appear at the heated area approximately 2 cm away from the blood vessels.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123983270","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}
引用次数: 0
Performance study of BCJR decoding based hybrid ARQ for autonomous wireless bans 自主无线禁令中基于BCJR解码的混合ARQ性能研究
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521698
Peng Zhang, Li Huang, F. Willems
{"title":"Performance study of BCJR decoding based hybrid ARQ for autonomous wireless bans","authors":"Peng Zhang, Li Huang, F. Willems","doi":"10.1109/ISMICT.2013.6521698","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521698","url":null,"abstract":"In this paper, a type-I hybrid automatic-repeat-request (ARQ) scheme based on the (15,10) shortened Hamming code with the Bahl, Cocke, Jelinek, and Raviv (BCJR) decoding algorithm is studied to suppress the transmit energy of bio-sensors in wireless body area networks (WBANs) by minimizing retransmission rate. The bit-error-rate is used as a reliability-based criterion to realize a flexible block-level retransmission. The superiority of the proposed scheme is explored by analyzing the BCJR decoding with both hard and soft inputs. It is shown that the retransmission rate of our reported scheme can be largely reduced in comparison with the retransmission scheme based on the syndrome decoding over not only AWGN channels but also practical WBAN fading channels corresponding to different transceiver positions and body movements. It is revealed that the transmit power of -5dBm is sufficient for the worst channel. This is especially useful for achieving autonomous WBANs where the sensors have strict energy budgets while the gateway has a more relaxed budget.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117164495","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}
引用次数: 0
Human behavior detection method with direction change invariant features 具有方向变化不变特征的人体行为检测方法
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521740
Takeyuki Ishii, H. Murakami, A. Koike
{"title":"Human behavior detection method with direction change invariant features","authors":"Takeyuki Ishii, H. Murakami, A. Koike","doi":"10.1109/ISMICT.2013.6521740","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521740","url":null,"abstract":"In this paper, we propose a new feature homogenization method using cubic higher-order local auto-correlation (CHLAC) to detect changes in human behavior. Conventional human behavior detection using CHLAC exhibits a high level of performance, but has difficulty in distinguishing between abnormal and normal movement. We propose a method with improved handling and statistical processing of mask patterns to suppress the change in the amount of features according to the direction of movement of the person. This provides a robust method of detecting changes in direction. A computer simulation using the proposed method demonstrates a superior performance composed to a conventional method in the recognition of abnormal human behavior.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127333302","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}
引用次数: 4
Voxel model construction by kinect for propagation channel simulation 利用kinect构建体素模型进行传播信道仿真
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521722
Akinori Fujie, J. Naganawa, Minseok Kim, T. Aoyagi, J. Takada
{"title":"Voxel model construction by kinect for propagation channel simulation","authors":"Akinori Fujie, J. Naganawa, Minseok Kim, T. Aoyagi, J. Takada","doi":"10.1109/ISMICT.2013.6521722","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521722","url":null,"abstract":"Study of the radio propagation channel is essential to design a reliable wireless system, especially in the Body Area Network (BAN) which will be used for medical/healthcare purposes. In the simulation of the BAN channel, various postures and motions of the human body should be examined for robustness. However, generating this motion data consumes time and is costly since experience with 3D animation software or complex motion capture systems with multiple cameras is required. Therefore, this paper proposes the utilization of Kinect, a motion capture gaming device, for the BAN channel simulation. The data from Kinect, namely the series of joints, depth, and image are converted into series of voxel models. Then, finite-difference time-domain (FDTD) simulation using the generated voxel models is performed.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127434944","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}
引用次数: 2
Virtual light touch contact: A novel concept for mitigation of body sway 虚拟轻触接触:减轻身体摇摆的新概念
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521710
K. Shima, Koji Shimatani, Akitoshi Sugie, Y. Kurita, R. Kohno, T. Tsuji
{"title":"Virtual light touch contact: A novel concept for mitigation of body sway","authors":"K. Shima, Koji Shimatani, Akitoshi Sugie, Y. Kurita, R. Kohno, T. Tsuji","doi":"10.1109/ISMICT.2013.6521710","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521710","url":null,"abstract":"This paper proposes a novel concept called virtual light touch contact (VLTC), which helps to reduce human postural sway in standing and walking states. The VLTC system essentially creates a virtual partition around the user and enables estimation of the virtual force caused when the partition is touched. The resulting force data are fed back to the user's fingertips in the form of vibrotactile stimulation, allowing sensation of the virtual partition in any location. To verify the validity of the proposed method, a prototype system was developed using motion-capture technology and a tactile stimulator, and preliminary experiments involving a healthy subject were conducted. The results indicated that the system is capable of helping to reduce the postural sway of the user during tandem (heel-to-toe) standing.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130837267","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}
引用次数: 19
Spectrum opportunities for electromagnetic energy harvesting from 350 mhz to 3 ghz 从350 mhz到3 ghz的电磁能量收集频谱机会
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521714
Jorge Tavares, Norberto Barroca, Henrique M. Saraiva, L. M. Borges, F. Velez, Caroline Loss, Rita Salvado, P. Pinho, R. Gonçalves, N. Carvalho
{"title":"Spectrum opportunities for electromagnetic energy harvesting from 350 mhz to 3 ghz","authors":"Jorge Tavares, Norberto Barroca, Henrique M. Saraiva, L. M. Borges, F. Velez, Caroline Loss, Rita Salvado, P. Pinho, R. Gonçalves, N. Carvalho","doi":"10.1109/ISMICT.2013.6521714","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521714","url":null,"abstract":"This paper presents spectrum opportunities for radio frequency (RF) energy harvesting identified through power density measurements from 350 MHz to 3 GHz. The field trials have been performed in two different cities (Covilha and Lisbon), by using the NARDA-SMR spectrum analyser with measuring antenna, and the Signal Hound spectrum analysers, respectively. The scope of our research considers RF energy harvesting devices, enabling to convert RF energy to direct current (DC), providing an alternative source to power supply wireless sensor network (WSN) devices. Printed antennas, able to operate at GSM (900/1800) bands, are proposed with gains of the order of 1.8-2.06 dBi and efficiency 77.6-84%. Guidelines for the choice of textile materials for a wearable antenna are also provided.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131957161","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}
引用次数: 29
SAR analysis of resonant cavity applicator using dielectric bolus with anatomical human model by finite element method 基于人体解剖模型的介电丸谐振腔加药器SAR分析
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521729
Y. Iseki, J. Arakawa, Kazuki Watanabe, Kazuo Kato, Y. Shindo, M. Kubo, Hideaki Takahashi, T. Uzuka
{"title":"SAR analysis of resonant cavity applicator using dielectric bolus with anatomical human model by finite element method","authors":"Y. Iseki, J. Arakawa, Kazuki Watanabe, Kazuo Kato, Y. Shindo, M. Kubo, Hideaki Takahashi, T. Uzuka","doi":"10.1109/ISMICT.2013.6521729","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521729","url":null,"abstract":"In this study, we propose a new heating method using a resonant cavity applicator to control the heated area using a dielectric bolus. The dielectric bolus is filled with a dielectric material such as water and is attached to a human head inside the cavity. In this paper, first, the proposed heating method using the dielectric bolus was described. Second, a 3-D anatomical human head model, which was constructed from 2-D MRI and X-ray CT images, was presented. Finally, from the results of specific absorption rate (SAR) distributions using 3-D FEM, it was shown that the heated area inside a human brain could be controlled by changing the electromagnetic field distribution. From these results, it was found that the proposed method for controlling the heated area was useful for effective hyperthermia treatments.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122545864","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}
引用次数: 1
Shadowing-fading BER characterization of BAN antennas based on realistic walking models 基于真实行走模型的BAN天线阴影衰落误码率表征
2013 7th International Symposium on Medical Information and Communication Technology (ISMICT) Pub Date : 2013-03-06 DOI: 10.1109/ISMICT.2013.6521726
Kun Li, K. Honda, K. Ogawa
{"title":"Shadowing-fading BER characterization of BAN antennas based on realistic walking models","authors":"Kun Li, K. Honda, K. Ogawa","doi":"10.1109/ISMICT.2013.6521726","DOIUrl":"https://doi.org/10.1109/ISMICT.2013.6521726","url":null,"abstract":"This paper presents analytical results on the BER degradation of QPSK signals for BAN antennas for the case where the combined outcome of shadowing and multipath fading emerge simultaneously and different types of human walking models are employed in the analysis. The results show that a probability of a low signal level is higher than that for the Rayleigh distribution owing to shadowing caused by the movement of the arms, resulting in the significant impact of arm-swinging on the BER performance of body-attached BAN devices. Furthermore, statistical measurements of human walking motion using a number of human subjects are conducted. Using the measured data, dynamic analytical models are created to show that different types of human walking models have appreciable effects on the BER performance of BAN antenna systems.","PeriodicalId":387991,"journal":{"name":"2013 7th International Symposium on Medical Information and Communication Technology (ISMICT)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126470544","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}
引用次数: 7
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