2010 3rd International Conference on Biomedical Engineering and Informatics最新文献_第8页

Fetal lung segmentation using texture-based boundary enhancement and active contour models 基于纹理边界增强和活动轮廓模型的胎儿肺分割

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639470

Xiaomin Li, Yuanyuan Wang, Jinhua Yu, Ping-Han Chen

{"title":"Fetal lung segmentation using texture-based boundary enhancement and active contour models","authors":"Xiaomin Li, Yuanyuan Wang, Jinhua Yu, Ping-Han Chen","doi":"10.1109/BMEI.2010.5639470","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639470","url":null,"abstract":"Low signal noise ratio (SNR) of the ultrasound images makes the segmentation of fetal lung a difficult task. In this paper, a novel method using the texture-based boundary enhancement and active contour models is developed to semi-automatically segment the fetal lung from fetal chest ultrasound images. The texture-based boundary enhancement procedure is firstly proposed to enhance boundary regions by using multiple textural features. Then the Expectation Maximization (EM) algorithm followed by a morphological thinning process is applied to identify and obtain the interesting boundaries. Finally, three rectangular regions of interest (ROIs) are manually selected for the fetal chest, the fetal heart, and the fetal spine respectively. After initializing the deformation models, the vector field convolution model (VFC) extracts contours of the fetal chest, the fetal heart, and the fetal spine. The fetal lung is the region within the fetal chest but excluding the fetal heart and the fetal spine. Experiments on real clinical fetal chest ultrasound images demonstrate the feasibility of the proposed method.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"147 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":"131872413","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

Particle Swarm Optimisation of Mel-frequency Cepstral Coefficients computation for the classification of asphyxiated infant cry 基于mel频倒谱系数计算的窒息婴儿哭声分类粒子群算法

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639674

A. Zabidi, W. Mansor, Y. K. Lee, A. I. Mohd Yassin, R. Sahak

{"title":"Particle Swarm Optimisation of Mel-frequency Cepstral Coefficients computation for the classification of asphyxiated infant cry","authors":"A. Zabidi, W. Mansor, Y. K. Lee, A. I. Mohd Yassin, R. Sahak","doi":"10.1109/BMEI.2010.5639674","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639674","url":null,"abstract":"Feature extraction techniques for input representation to diagnose infant diseases have received significant attention recently. Mel Frequency Cepstral Coefficients (MFCC) is one of the most popular feature extraction techniques due to its representation method being very similar to the human auditory system. The MFCC method for feature extraction depends on several important parameter settings, namely the number of filter banks, and the number of coefficients used in the final representation. These settings affects the way the features are represented, and in turn, affects the performance of the classifier for diagnosis of the disease. In this paper, the Particle Swarm Optimization (PSO) algorithm was used to optimise the parameters of the MFCC feature extraction method for classifying infants with asphyxia. The extracted MFCC features were then used to train several MLP classifiers over different initialization values. The accuracy of these classifiers was then used to guide the PSO optimization. Our results show that the optimization of MFCC computation using PSO yielded 93.9% accuracy, an improvement of 1.45% over typical MFCC parameter settings using the same classifier.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"281 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":"131901428","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: 6

Three-dimensional finite element analysis of the prosthetic rehabilitation for unilateral maxillary defect after free flap reconstruction 单侧上颌缺损游离皮瓣重建后义肢修复的三维有限元分析

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639545

Jian Sun, T. Jiao

{"title":"Three-dimensional finite element analysis of the prosthetic rehabilitation for unilateral maxillary defect after free flap reconstruction","authors":"Jian Sun, T. Jiao","doi":"10.1109/BMEI.2010.5639545","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639545","url":null,"abstract":"Aims: The aim of this study was to evaluate the stress on the prostheses and abutment teeth in a unilateral maxillary defect with free flap reconstruction. Methods and Materials: A three-dimensional finite element model of the human unilateral maxillary defect was constructed. Prostheses after free flap reconstruction were established. The modelling and analytical processes were performed using the ANSYS technologies. Results: The stress concentration was located at the junction of the palatal and the free flap. The highest stress value of was 49.656 Mpa. Stress distribution was uniform in the remaining posterior teeth. As for the free flap, the stress concentration were also found at the area adjacent to the palatal and the posterior area of the free flap, with a maximum stress value of 13.03Mpa. Conclusions: Although the immediate surgical reconstruction for unilateral maxillary defect has some advantages, it might cause instability of the prostheses which may affect the overall prosthetic outcome to the point of view of biomechanics. Further research should be done to perfect this kind of treatment, leading to a successful surgical and prosthodontic rehabilitation.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"50 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":"115608798","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

Latent variable models for assessing interaction effects in cognitive neuroscience 评估认知神经科学中相互作用效应的潜在变量模型

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639504

Cin-Ru Chen, Liang-Ting Tsai, Chih-Chien Yang, Chih-Chiang Yang

引用次数: 0

Non-linear characteristic of human blood NIR spectra 人体血液近红外光谱的非线性特性

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639914

Yuliang Liu, Weiming Yang, Lihui Liu

引用次数: 1

Nanocomposite hydrogels : A novel wound dressings 纳米复合水凝胶:一种新型伤口敷料

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639558

Y. Zhou, T. Mizuno, T. Takehisa, K. Haraguchi, Y. Taenaka

引用次数: 0

Application of VR in appendectomy surgery system VR在阑尾切除术系统中的应用

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639657

Guiyun Ye, Changzheng Liu

引用次数: 1

Hemodynamic based cardiovascular surgical planning system 基于血流动力学的心血管手术计划系统

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639482

Jinlin Ding, L. Chai, Youjun Liu

{"title":"Hemodynamic based cardiovascular surgical planning system","authors":"Jinlin Ding, L. Chai, Youjun Liu","doi":"10.1109/BMEI.2010.5639482","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639482","url":null,"abstract":"Currently, the cardiovascular diseases threaten almost two in one thousand new borns all around the world. The treatment of these diseases mainly depends on the surgeons' experiences. Surgeons have to choose one of the assumed options for a patient without comparing which is more feasible. In this paper, a cardiovascular surgical planning system was proposed to help the surgeons predict the optimal surgical options using Computational Fluid Dynamics (CFD) and numerical analysis. Three significant stages were included. First, patient-specific three-dimensional anatomical model was reconstructed from CT or MRI data. Second, the reconstructed model was modified into diverse surgical options as the surgeons envisioned. Third, the modified models were imported into ANSYS or CFX for CFD simulations. Hemodynamic characters, for instance, static pressure, flow rate, wall sheer stress, total pressure, flow structure and so on can be obtained. Surgeons are able to predict the post-operation outcomes according to the results of the numerical analysis. This paper studied the Fontan procedure using in the treatment of single ventricle congenital heart defect.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"55 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":"116947482","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

In vivo animal experimental research of magnetic nanoparticles influence on pulse wave 磁性纳米颗粒对脉冲波影响的动物体内实验研究

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639519

Yupeng Yao, Shouliang Qi, Jingshu Zhang, Bowen Song, Cong Feng, Lisheng Xu

{"title":"In vivo animal experimental research of magnetic nanoparticles influence on pulse wave","authors":"Yupeng Yao, Shouliang Qi, Jingshu Zhang, Bowen Song, Cong Feng, Lisheng Xu","doi":"10.1109/BMEI.2010.5639519","DOIUrl":"https://doi.org/10.1109/BMEI.2010.5639519","url":null,"abstract":"In vivo animal experimental research is performed to study the influence of magnetic nanoparticles on the pulse wave. An interventional pulse wave transducer is connected to the rabbit's blood circulation through the ingenious two-end carotid intubations, so that the pulse wave with low noise could be acquired. The data obtained before and after the injection of the magnetic nanoparticles, which have the diameter of 20 nm, is processed and compared in both time and frequency domain. It is found that after injection, pulse wave height is about 10 mmHg higher, and its interval is about 4.55% longer. While the fluctuation of respiration is much more gently, the acuity of pulse wave fluctuation increases. It is likely to say that injection has elevated the blood pressure and brought down the excitation of the rabbits. According to the relationship between the blood pressure and the blood viscosity of human body, the injection of nanoparticles has increased the blood viscosity of the rabbit. The results are very instructive for the study of in vivo transport of magnetic nanoparticles, which is the base of targeted drug delivery, hyperthermia and embolism therapy using nanoparticles.","PeriodicalId":231601,"journal":{"name":"2010 3rd International Conference on Biomedical Engineering and Informatics","volume":"47 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":"116959893","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

Wavelet packet energy entropy analysis of EEG signals evoked by acupuncture 针刺诱发脑电信号的小波包能量熵分析

2010 3rd International Conference on Biomedical Engineering and Informatics Pub Date : 2010-11-18 DOI: 10.1109/BMEI.2010.5639625

Hongrui Bian, Jiang Wang, Nuo Li, Bin Deng, Xile Wei, Huiyan Li

引用次数: 2