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International Symposium on Bioelectronics and Bioinformations 2011最新文献

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MGRG-morphological gradient based 3D region growing algorithm for airway tree segmentation in image guided intervention therapy 基于mgrg形态学梯度的三维区域生长算法在图像引导介入治疗中气道树分割
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107649
Dezhi Gao, Xin Gao, Caifang Ni, Tao Zhang
{"title":"MGRG-morphological gradient based 3D region growing algorithm for airway tree segmentation in image guided intervention therapy","authors":"Dezhi Gao, Xin Gao, Caifang Ni, Tao Zhang","doi":"10.1109/ISBB.2011.6107649","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107649","url":null,"abstract":"Accurate surgical planning and guidance plays an important role in successful implementation of image guided intervention. In interventional lung cancer diagnosis and treatments, precise segmentation of airway trees from lung CT images provides crucial visualization for preoperative planning and intraoperative guidance to avoid major trachea injury. While 3D region growing can segment main the parts of an airway tree (trachea, left and right main bronchus, as well as bronchi), the method fails at bronchiole segmentation and is not robust. Mathematical morphology is an anatomical detective. In this paper, we propose a morphological gradient based region growing (MGRG) algorithm to overcome the intensity inhomogeneity, and improve the robustness of 3D region growing on extraction of bronchioles. The MGRG algorithm is validated using lung CT images, and results show that it is able to segment bronchioles, and outperforms the traditional region growing method on airway tree segmentation.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115644249","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: 5
Surface myoelectric signals decoding using the continuous wavelet transform singularity detection 基于连续小波变换的面肌电信号解码奇异检测
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107678
Yuxuan Zhou, Xiaoying Lu, Zhigong Wang, Zonghao Huang, Jingdong Yang, Xintai Zhao
{"title":"Surface myoelectric signals decoding using the continuous wavelet transform singularity detection","authors":"Yuxuan Zhou, Xiaoying Lu, Zhigong Wang, Zonghao Huang, Jingdong Yang, Xintai Zhao","doi":"10.1109/ISBB.2011.6107678","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107678","url":null,"abstract":"Electromyographic (EMG) signals are the resultant of electrical activity of muscle fibers during a muscle contraction, whose pattern can provide a significant reference of a motor rehabilitation system. The EMG decoding method using “refractory period” and “threshold” is appropriate for real-time processing system due to its low algorithm complexity and the good fidelity of time domain information. In this paper, the distribution of intervals between continuous wavelet transform modulus maxima was analyzed to provide a reasonable determination of the “refractory period”. In addition, the source signals were decoded according to the “refractory period”. Promising results are demonstrated.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127318484","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: 3
The effect of biomaterial's properties on the bone cell functions 生物材料性能对骨细胞功能的影响
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107685
X. Liao, W. Xu, Bo Li, Taifu Li, Ya Fu, Jun Wang
{"title":"The effect of biomaterial's properties on the bone cell functions","authors":"X. Liao, W. Xu, Bo Li, Taifu Li, Ya Fu, Jun Wang","doi":"10.1109/ISBB.2011.6107685","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107685","url":null,"abstract":"In the bone tissue engineering, the new bone tissue regeneration is managed by these bone cells under tightly controlled microenvironment including both chemical and mechanical stimuli. In this paper, we summarize an overview of published studies on the understandings of the cells' response to environmental stimuli. Specific attention has been focused on the effect of biomaterial's chemical and physical properties on the bone cell functions. Finally, we advance the fluorescent living cell imaging method is expected to reveal the interaction mechanisms between cells and materials and the osteogenic mechanisms of living stem cell at the molecular level, and we highlighted the directions for future research.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125693569","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 low-power circuit for BPSK and QPSK demodulation for body area networks applications 用于体域网络的BPSK和QPSK解调的低功耗电路
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107691
Jinzhao Lin, You Zhou, Yu Pang, Zhangyong Li, Zhiqiang Zhao, Heng Wang
{"title":"A low-power circuit for BPSK and QPSK demodulation for body area networks applications","authors":"Jinzhao Lin, You Zhou, Yu Pang, Zhangyong Li, Zhiqiang Zhao, Heng Wang","doi":"10.1109/ISBB.2011.6107691","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107691","url":null,"abstract":"Body area networks (BANs) are of importance for telemedicine and telehealth services, so they have caught many engineers' attention. A coordinator in a BAN plays a significant role to collect signals from sensors and interface with telecommunication networks. Since the wireless channel of BAN is very complicated and changeable, the modulation is not fixed. As a result, the coordinator must have different demodulators. In this paper, we propose a method to design a low-power circuit which can both demodulate BPSK and QPSK by using the technique of datapath merging. The results of the experiments show that the proposed demodulator implementation can reduce around 23% hardware area compared with the traditional implementation.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"81 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114330419","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
Design of neural stimulating and neural signal detecting circuit for monolithic integrated MEA 单片集成MEA中神经刺激和神经信号检测电路的设计
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107647
Tao Fang, Xiaoying Lu, Zhigong Wang, Haixian Pan
{"title":"Design of neural stimulating and neural signal detecting circuit for monolithic integrated MEA","authors":"Tao Fang, Xiaoying Lu, Zhigong Wang, Haixian Pan","doi":"10.1109/ISBB.2011.6107647","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107647","url":null,"abstract":"A neural stimulating circuit and a neural signal detecting circuit designed for a monolithic integrated MEA (micro-electrode array) are described. Two OPAs (operational amplifier) used as the basic cells of the circuits were designed. One is a telescopic OPA with low noise and low power, the other one is with rail-to-rail swing and constant gm. The circuits are realized in a standard 0.5-μm CMOS process (CSMC, Wuxi, China) and the test results of the circuits will be described.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130003021","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
Biomaterials and bone tissue engineering 生物材料与骨组织工程
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107687
W. Xu, X. Liao, Bo Li, Taifu Li
{"title":"Biomaterials and bone tissue engineering","authors":"W. Xu, X. Liao, Bo Li, Taifu Li","doi":"10.1109/ISBB.2011.6107687","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107687","url":null,"abstract":"During the last decades, bone tissue repair and regeneration have been increasing interest in the clinical therapy scientific field, and with the development of materials, biology and tissue engineering, the bone tissue engineering has been as an efficient method to treat bone defects. This review summarizes several aspects related to bone tissue engineering for bone repair and regeneration: the biomaterials in the bone tissue engineering, the stem cell behavior in bone tissue engineering, and the development of biomaterials and bone tissue engineering. We also highlight several latest advancements in bone tissue engineering. Finally, a brief summary of the bone tissue engineering challenges in the field are provided with suggestions for future research directions.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133979425","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
Digital holographic phase-contrast microscopy for 3D imaging of gastric cancer cells 用于胃癌细胞三维成像的数字全息相衬显微镜
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107699
Cuiying Hu, Jingang Zhong, Jiawen Weng, Guangrong Yan
{"title":"Digital holographic phase-contrast microscopy for 3D imaging of gastric cancer cells","authors":"Cuiying Hu, Jingang Zhong, Jiawen Weng, Guangrong Yan","doi":"10.1109/ISBB.2011.6107699","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107699","url":null,"abstract":"Digital holographic phase-contrast microscopy, a new imaging microscopy, is the combination of digital holography with microscopy. It possesses some unique advantages, e.g. non-destructive, non-invasive and quantitative analysis, and it can be used to image for phase-type objects. In this paper, gastric cancer cells at different stages of cell division were studied employing transmission experimental setup, and the intensity image and phase image of the cells were obtained. The cell sizes were calculated and the cell structures were analyzed according to the intensity and phase images. The result shows that digital holographic phase-contrast microscopy can be used to 3D imaging of microscopic phase object under marker-free condition and real-time quantitative measurement. The technique has a strong potential in biomedical applications.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122323172","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 dual-excitation difference technique for fluorescence rejection in Raman spectroscopy 拉曼光谱中抑制荧光的双激发差分技术
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107637
Zhijian Cai, W. Zou, Jianhong Wu
{"title":"A dual-excitation difference technique for fluorescence rejection in Raman spectroscopy","authors":"Zhijian Cai, W. Zou, Jianhong Wu","doi":"10.1109/ISBB.2011.6107637","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107637","url":null,"abstract":"Fluorescence disturbance is the primary limiting factor of biomedical Raman spectroscopy. This paper proposed a dual-excitation difference technique for fluorescence rejection. In this research, a low-cost dual-excitation system was built for Raman detection, and a robust deconvolution algorithm was developed for spectrum recovery. Simulation and experimental results demonstrated that this method could effectively eliminate the fluorescence background in Raman spectroscopy.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122820632","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
Parameter estimation for coupling neural network models with symbolic dynamics 符号动力学耦合神经网络模型的参数估计
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107700
Jiong Ding, Hong Zhang, Qinye Tong
{"title":"Parameter estimation for coupling neural network models with symbolic dynamics","authors":"Jiong Ding, Hong Zhang, Qinye Tong","doi":"10.1109/ISBB.2011.6107700","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107700","url":null,"abstract":"This paper presents work on parameter estimation method for simple coupling neural network models. Different from the traditional voltage-clamp technique to extract each ion channel parameters of a neuron, the method proposed in this paper only need to record the inter-spike interval sequences of the neuron's output. Based on the principle of symbolic dynamics, the action potential sequences can be symbolized without high precision measurement. By computing the distance between symbolic sequences can analyze the degree of nearness between the two orbits, and then use dichotomy to find the optimal parameters. The longer the output spike sequence is, the higher precision estimation can be achieved. The proposed method is efficient for parameter estimation in unstable neural systems, and has a certain reference value for creating neural models from neural electrophysiological experiments.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129102623","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 novel approach of torque-balanced asymmetric gradient coil design for head imaging 一种用于头部成像的力矩平衡非对称梯度线圈设计新方法
International Symposium on Bioelectronics and Bioinformations 2011 Pub Date : 2011-12-19 DOI: 10.1109/ISBB.2011.6107659
X. You, W. Yang, Tao Song, L. Hu, Hui Wang
{"title":"A novel approach of torque-balanced asymmetric gradient coil design for head imaging","authors":"X. You, W. Yang, Tao Song, L. Hu, Hui Wang","doi":"10.1109/ISBB.2011.6107659","DOIUrl":"https://doi.org/10.1109/ISBB.2011.6107659","url":null,"abstract":"A novel approach of designing gradient coil for superconducting MRI is presented in this paper. This design approach, which is based on the well-known target field method, is capable of designing shielded gradient coil of finite length by describing the current density distribution on the surface of the coil in the form of Fourier series. Asymmetric coil with constraints such as torque balance can also be designed using this approach. Design examples of a shielded X gradient coil for whole body imaging and a shielded torque-balanced asymmetric X gradient coil for head imaging were given in this paper. The design process and results prove that this design approach is efficient and practical.","PeriodicalId":345164,"journal":{"name":"International Symposium on Bioelectronics and Bioinformations 2011","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121669977","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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