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2010 3rd International Conference on Biomedical Engineering and Informatics最新文献

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Two-dimensional frequency shift track based on geometric moment invariants 基于几何矩不变量的二维频移跟踪
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5640548
Xiao Yang, Chen Binjin, Yu Jianguo
{"title":"Two-dimensional frequency shift track based on geometric moment invariants","authors":"Xiao Yang, Chen Binjin, Yu Jianguo","doi":"10.1109/BMEI.2010.5640548","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5640548","url":null,"abstract":"A novel ultrasonic flow velocity estimation method employing the two-dimensional (2-D) frequency shift track is proposed. By representing the backscattered echoes from human blood in the 2-D frequency domain, this paper shows that the velocity profile measurement using pulsed-wave Doppler ultrasound and the moving target track in image processing are isomorphic problems. Therefore, feature template matching based on geometric moment invariants can be used to track the 2-D frequency shift from which the velocity is estimated. Then we discuss the characteristics of the moment invariants and present correlation coefficient as a tracing strategy. The experimental results show the method can overcome the disadvantage caused by frequency-dependent attenuation and get better effect in velocity profile estimation.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128598869","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
A two-phase design for estimating the effective window of pharmaceutical response 估计药物反应有效窗口的两阶段设计
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639444
Dianpeng Wang, Yubin Tian
{"title":"A two-phase design for estimating the effective window of pharmaceutical response","authors":"Dianpeng Wang, Yubin Tian","doi":"10.1109/BMEI.2010.5639444","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639444","url":null,"abstract":"In pharmaceutical analysis, the window that cases effective response with probability larger than p is important and need to be precisely estimated. For this difficult issue, we propose a two-phase design by combining D-optimal strategy and likelihood recursive approximation to estimate it. Simulation study shows that the estimate is accurate and reliability.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"560 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128679714","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
Surface modification of titanium with chitosan-heparin multilayers via electrostatic self-assembly technique 壳聚糖-肝素多层膜静电自组装技术对钛表面的修饰
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639913
Zhennan Deng, Dafeng Zhang, Haoyuan Huang, Jianfeng Ma
{"title":"Surface modification of titanium with chitosan-heparin multilayers via electrostatic self-assembly technique","authors":"Zhennan Deng, Dafeng Zhang, Haoyuan Huang, Jianfeng Ma","doi":"10.1109/BMEI.2010.5639913","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639913","url":null,"abstract":"To improve the surface biocompatibility of titanium films, a electrostatic self-assembly technique (ESA), based on the polyelectrolyte-mediated electrostatic adsorption of chitosan (Chi) and heparin (Hep), was used leading to the formation of multilayers on the titanium thin film surfaces. The film growth was initialized by depositing one layer of positively charged poly-L-lysine (PLL) on the NaOH-treated titanium substrate (negatively charged surface). Then the film was formed by the alternate deposition of negatively charged heparin and positively charged chitosan via electrostatic interactions of polyelectrolytes, and terminated by an outermost layer of chitosan. The ESA film was monitored by several techniques. The chemical composition and surface topography were investigated by using diffuse reflectance Fourier transform infrared spectroscopy (DR-FTIR), scanning electron microscope (SEM) and atomic force microscope (AFM), respectively. The results indicated that a full surface coverage for the outmost layer was achieved after deposition of sixteen layers. Cell morphology, cell proliferation as well as differentiation function (alkaline phosphatase) of osteoblasts on ESA-modified titanium film (PLL/(Hep/Chi)16) and control sample were investigated, respectively. Osteoblasts cultured on ESA-modified titanium film showed better morphology than that of control. Cell proliferation and alkaline phosphatase measurements indicated that osteoblasts on ESA-modified titanium films were greater (p<0.01) than those for the control, respectively. These results suggested that surface modification of titanium was successfully achieved via deposition of PLL/(Hep/Chi)16 layers, which was useful to enhance the biocompatibility of the titanium film. The approach presented here may be exploited for fabrication of titanium-based implant surfaces.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127463287","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
Automated detection of fetal cardiac structure from first-trimester ultrasound sequences 自动检测胎儿心脏结构从早期妊娠超声序列
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639656
Yinhui Deng, Yuanyuan Wang, Ping-Han Chen
{"title":"Automated detection of fetal cardiac structure from first-trimester ultrasound sequences","authors":"Yinhui Deng, Yuanyuan Wang, Ping-Han Chen","doi":"10.1109/BMEI.2010.5639656","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639656","url":null,"abstract":"The structure detection of the first-trimester fetal heart is important for the diagnosis of fetuses, which is difficult due to the small size of the first-trimester fetal heart and the low signal-to-noise ratio of the ultrasound imaging. In the paper, a novel method is proposed for the automated detection of the fetal cardiac structure from first-trimester ultrasound images. First the region of interest for the fetal heart is automatically selected based on the established motion summation image. Then a despeckle method is proposed to simultaneously suppress the speckle noise according to its statistical property and emphasize the motion information which is important for the next detection. Finally an active appearance model is designed for the fetal heart and accomplishes the structure detection. Experiments on 258 ultrasound images verify the effectivity of our proposed method.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129973171","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: 18
Assessment of genotoxicity of nitrobenzene using Vicia-micronucleus test 维氏微核试验评价硝基苯的遗传毒性
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639702
Liang Si, Changhong Guo, Jun Ma, Rui Li, Donglin Guo
{"title":"Assessment of genotoxicity of nitrobenzene using Vicia-micronucleus test","authors":"Liang Si, Changhong Guo, Jun Ma, Rui Li, Donglin Guo","doi":"10.1109/BMEI.2010.5639702","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639702","url":null,"abstract":"The genotoxicity of nitrobenzene was evaluated by Vicia faba micronuclei (MN) assay, chromosomal aberration assay and mitotic index assay. Vicia faba primary root tip cell mitotic index (MI) increased following NB concentration from 5 mg/L to 50 mg/L. It implies that NB may effect on the mitosis of Vicia faba root tip cells, promote at lower concentration and inhibit at higher concentration. NB induces chromosome aberration of Vicia faba primary root cells. Single bridge, double bridge, chromosome fragment, abnormal action chromosome, syncytium and others aberration were observed. Chromosome aberration frequency at 5mg/L and higher show actual statistical significance (P<0.01) compared with the control. The significantly increasing of the MN and chromosomal aberrations frequency indicated the genotoxicity of NB on Vicia faba root tips.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129994519","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
Periodic oscillations for a model of gene expression with delay 具有延迟的基因表达模型的周期振荡
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639793
Kejun Zhuang, Hailong Zhu
{"title":"Periodic oscillations for a model of gene expression with delay","authors":"Kejun Zhuang, Hailong Zhu","doi":"10.1109/BMEI.2010.5639793","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639793","url":null,"abstract":"In this paper, a delayed model of gene expression with positive feedback loop is investigated. The model takes the form of delay differential equations. By choosing the time delay as bifurcation parameter, small amplitude periodic solutions are obtained due to Hopf bifurcation. Furthermore, global existence of bifurcating periodic solutions is established with the help of global bifurcation theory.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130149025","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
Research and application of component composition based on software architecture 基于软件体系结构的构件组合研究与应用
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639839
Chong-shan Ran, Yong Song
{"title":"Research and application of component composition based on software architecture","authors":"Chong-shan Ran, Yong Song","doi":"10.1109/BMEI.2010.5639839","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639839","url":null,"abstract":"In order to improve the maintainability and extendibility of systems, a bus-type approach of component composition based on component composition's principle and software architecture was proposed. In the bus-type approach, system is decomposed into different components, which communicate with each other through a message bus. The approach can make the components transparent to each other, so as to add, delete or replace a component. The approach is applied to develop EAM (Enterprise Asset Management) system. It shows that the approach can improve the maintainability and extendibility of EAM system significantly.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129028538","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
The comparative study of the Business Intelligence Explorer and the traditional explorer 商业智能探索者与传统探索者的比较研究
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639833
Zhaohui Yu, Xiang Ji
{"title":"The comparative study of the Business Intelligence Explorer and the traditional explorer","authors":"Zhaohui Yu, Xiang Ji","doi":"10.1109/BMEI.2010.5639833","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639833","url":null,"abstract":"Business Intelligence Explorer uses a new browsing method and the framework incorporates visualization, web mining and clustering techniques to support effective exploration of knowledge. To examine whether the business intelligence explorer did optimize the search result or not, this paper chose three research objects, Google, Quintura, Clusty, and conducted an analysis of variance in terms of efficiency, effectiveness and usability. The result shows that visualization and clustering techniques offers practical implications for search engine users.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125683707","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
A novel FPGA based platform for ultrasound power measurement 基于FPGA的超声功率测量平台
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639403
E. Supriyanto, Kee Jiar Yeo, Imamul Muttakin, I. Ariffin, Sin Yu Yeap
{"title":"A novel FPGA based platform for ultrasound power measurement","authors":"E. Supriyanto, Kee Jiar Yeo, Imamul Muttakin, I. Ariffin, Sin Yu Yeap","doi":"10.1109/BMEI.2010.5639403","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639403","url":null,"abstract":"Ultrasound power meter is widely used in health care, educational and industrial institutions. It is used to measure the power output of ultrasound machine for diagnostic, therapeutic and non-destructive testing purposes. The current ultrasound machine is high cost and does not have further data processing for analysis. In order to reduce the cost of data processing unit and enable further analysis, a Field-Programmable Gate Array (FPGA) based ultrasound processing platform has been proposed. This platform is able to process the data from two polyvinylidene fluoride (PVDF) sensors and one temperature sensor. It is prepared to measure the ultrasound frequency from 500 kHz to 10 MHz with temperature range from 10 °C to 50 °C and power range from 1mW/cm2 up to 10W/cm2 (based on formula, the resolution is 0.87mW/cm2). For the further analysis, a graphical user interface (GUI) has been developed. The GUI receives the data from the ultrasound processing unit through a serial communication port and display the result in the graph. This FPGA has been tested and can be used as platform for ultrasound power meter. Test result shows that the platform is able to process 10µs ultrasound data with 20ns time-domain resolution and maximum amplitude of 2Vp with 0.12mVpp resolution then display these waveform and calculation result in the GUI.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131094037","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
Dual-tree wavelet based algorithm for speckle reduction and edge enhancement in ultrasound images 基于双树小波的超声图像斑点去除和边缘增强算法
2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639439
W. Yen, S. Tai
{"title":"Dual-tree wavelet based algorithm for speckle reduction and edge enhancement in ultrasound images","authors":"W. Yen, S. Tai","doi":"10.1109/BMEI.2010.5639439","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639439","url":null,"abstract":"Ultrasound images are the important bases of disease diagnostic. Unfortunately, the qualities of ultrasound images are generally limited due to speckle noises. Speckle reduction is an important pre-processing step in the ultrasound image feature extraction, analysis and recognition. In this paper, we present an approach for ultrasound image enhancement. It is designed to utilize the three technologies: the separability and multiresolution properties of the wavelet, the local statistics of each subband and the edge enhancement of the shape. The performance of the proposed method has been compared with that of the commonly novel approaches on both synthetic speckle images and real medical ultrasound images. The proposed method reveals superior performance in term of the PSNR value and perceptible quality. Because of the superior performance in noise reduction and edge preservation, the proposed method is more suitable than the other methods in computer-aided diagnosis.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130195232","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
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