2014 18th National Biomedical Engineering Meeting最新文献_第3页

CAD for detection of microcalcification and classification in mammograms CAD用于乳房x线照片中微钙化的检测和分类

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026349

Cansu Akbay, N. G. Gencer, Gül Gençer

引用次数: 2

Application of online agglomerative hierarchical clustering on real dMRI 在线聚类层次聚类在真实dMRI中的应用

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026372

A. Demir, M. Ozkan

{"title":"Application of online agglomerative hierarchical clustering on real dMRI","authors":"A. Demir, M. Ozkan","doi":"10.1109/BIYOMUT.2014.7026372","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026372","url":null,"abstract":"Magnetic resonance imaging provides diffusion weighted images (DWI), which non-invasively reconstruct the brain white matter pathways through fiber tractography. Fiber clustering algorithms are used to identify anatomically meaningful fiber bundles. Most of the clustering schemes require a (dis)similarity matrix which contains pairwise fiber distances. Computation of the pairwise fiber distances has a quadratic complexity. Online clustering schemes do not require a computation of full pairwise fiber distances, hence the overall clustering computation time is reduced. In this experimental study, we proposed to use an online agglomerative hierarchical clustering algorithm to extract white matter fiber bundles from the whole brain fibers filtered by a spherical region of interest (ROI). This method requires an initialization of the cluster model using a relatively small set of fibers. After the initialization, cluster (re)assignment is performed using the cluster model by updating the model in certain conditions. The experiments are conducted on five different real DWI, for each a spherical ROI is located in different anatomical regions for filtering the whole brain fibers.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132381413","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

Alkaline and acidic anodization of titanium implants using electrochemistry 碱性和酸性阳极氧化钛植入物的电化学研究

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026346

Gizem Ersen, G. Bulus, Yagmur Birgi, F. S. Utku

引用次数: 0

Analysis of visual stimulus parameters for SSVEP based brain computer interfaces 基于SSVEP的脑机接口视觉刺激参数分析

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026381

Berrenur Saylam, Ozan Caglayan, R. Arslan

引用次数: 0

Development of computer based ballistocardiography system 基于计算机的超声心动图系统的开发

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026370

Nurhan Ozturk, M. Yıldız

引用次数: 0

Investigation of active channels in multi-channel surface arm EMG recordings for 24 different movements 24种不同运动的多通道表面臂肌电图记录中活动通道的研究

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026350

A. Akgul, Merve Bedeloglu, Çağdaş Topçu, Refik Sever, O. Ozkan, O. Ozkan, H. Uysal, O. Polat, O. H. Colak

引用次数: 2

A test platform design for testing knee prostheses 一种测试膝关节假体的测试平台设计

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026375

A. Yilmaz, Tuna Orhanli

引用次数: 0

Analysis of mechanomyogram signals for evaluation of muscle fatigue 评估肌肉疲劳的肌力图信号分析

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026363

S. Okkesim, Kezban Coşkun

引用次数: 2

Which particule sizes and which nutrient medias should be used in order to observe microorganisms in the operating rooms? 在手术室中观察微生物应使用何种颗粒尺寸和何种营养培养基?

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026358

Selin Yalvarmis, Ayşe Ak, Y. Ulgen

引用次数: 1

Investigation of cell localisation pattern in 3 dimensional micro-tissues 三维显微组织中细胞定位模式的研究

2014 18th National Biomedical Engineering Meeting Pub Date : 2014-10-01 DOI: 10.1109/BIYOMUT.2014.7026351

S. Ozturk, Veli Kaan Aydin, Betul Karakuzu, Aylin Sendemir-Urkmez

{"title":"Investigation of cell localisation pattern in 3 dimensional micro-tissues","authors":"S. Ozturk, Veli Kaan Aydin, Betul Karakuzu, Aylin Sendemir-Urkmez","doi":"10.1109/BIYOMUT.2014.7026351","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2014.7026351","url":null,"abstract":"It is impossible to mimic mammalian tissues by classical two-dimensional (2D) techniques. In this study, it is aimed to take advantage of self-assembly characteristics of cells in physiological conditions to achieve 3D tissues in vitro. Human Osteosarcoma cells (SaOS-2) were co-cultured with human umbilical vein endothelial cells (HUVEC) and human skin fibroblast cells (Detroit) were co-cultured with human skin keratinocyte cells (HS2) in agar gels that were formed using 3D Petri Dish® technique, and localization of cells were examined. Affect of cell number on localization was also investigated via using different cell ratios in co-culture systems. The change over time in the size of micro-tissues was determined using ImageJ program. The fluorescence microscope examination revealed that in SaOS-2 - HUVEC co-culture system, cells were localized randomly, and there wasn't any significant effect of cell number on localization pattern. In HS2 - Detroit co-culture system, fibroblasts were localized in the core and the keratinocytes were found on the outer shell, and cell number didn't affect this pattern. In microtissues formed by HS2 - Detroit co-culture, there was a significant increase in size after 72 hours. In the SaOS-2 - HUVEC co-culture, there was a significant reduction between the first and the fifth hours.","PeriodicalId":428610,"journal":{"name":"2014 18th National Biomedical Engineering Meeting","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122298264","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