2018 International Conference BIOMDLORE最新文献

Action Rules as a Useful Tool in Selected Neurological Disorders Diagnosis 动作规则作为神经系统疾病诊断的有用工具

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467206

Małaorzata Zdrodowska, A. Dardzinska, M. Chorąży, A. Kułakowska

引用次数: 0

Real-Time Cardiac Artifact Removal from EEG Using a Hybrid Approach 利用混合方法实时去除脑电图中的心脏伪影

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467207

Aysa Jafarifarmand, M. Badamchizadeh

{"title":"Real-Time Cardiac Artifact Removal from EEG Using a Hybrid Approach","authors":"Aysa Jafarifarmand, M. Badamchizadeh","doi":"10.1109/BIOMDLORE.2018.8467207","DOIUrl":"https://doi.org/10.1109/BIOMDLORE.2018.8467207","url":null,"abstract":"BACKGROUND: Electroencephalogram (EEG) signals are sometimes contaminated by cardiac artifacts (CAs). The artifacts resulted by electrical activities of heart, named electrocardiogram (ECG), appear in EEG recordings as spiky potentials that may obscure the information in EEG data and reduce their interpretability. OBJECTIVE: Real-time removal of CAs is of great importance in several applications of EEG, and particularly brain-computer interface (BCI). The process is, however, often neglected due to the time-consuming computations. METHODS: This paper applies a new real-time hybrid approach to remove ECG artifacts from EEG signals. The method is based on the combination of independent component analysis (ICA) and adaptive noise cancellation (ANC), referred to as ICA-ANC. ICA is applied to a few EEG signals in order to extract the reference signal for ANC. The method so utilizes a few EEG channels without synchronous ECG channel, and thus is suited to portable BCI applications. RESULTS: ICA-ANC is evaluated for datasets of five different subjects. CAs are efficiently removed while preserving the cerebral information. The approach is shown to outperform a state of the art method. CONCLUSION: The proposed new algorithm is capable of real-time cardiac artifacts removal using a few EEG channels.","PeriodicalId":151729,"journal":{"name":"2018 International Conference BIOMDLORE","volume":" 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113952234","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 Prolonged Sitting on Different Unstable Chairs on Trunk Muscles Activity and Posture for Individuals with Sedentary Work 长时间坐在不同不稳定的椅子上对久坐工作个体躯干肌肉活动和姿势的影响

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467209

A. Domeika, Ieva Alcknaitė-Dambrauskienė, V. Grigas, K. Kazlauskienė, Vaiva Saučiūmaitė, G. Krutulytė

{"title":"The Effect of Prolonged Sitting on Different Unstable Chairs on Trunk Muscles Activity and Posture for Individuals with Sedentary Work","authors":"A. Domeika, Ieva Alcknaitė-Dambrauskienė, V. Grigas, K. Kazlauskienė, Vaiva Saučiūmaitė, G. Krutulytė","doi":"10.1109/BIOMDLORE.2018.8467209","DOIUrl":"https://doi.org/10.1109/BIOMDLORE.2018.8467209","url":null,"abstract":"BACKGROUND: Sitting nowadays is typical working position and causes various harmful effects which could be minimized by regular changes of position implemented due to periodical activation of corresponding muscles. OBJECTIVE: To determine changes of trunk muscles activity and posture after prolonged sitting on unstable chairs. METHODS: 20 office workers participated in the study. Posture and movements of their torso and pelvis were measured by 3D MoCap system and four trunk muscles activities - by electromyograph. Three different unstable chairs were tested when performing three different tasks while sitting on teach of them. RESULTS: Trunk muscles activity significantly increased after 6 weeks sitting on unstable chairs: Multifidus muscles - 8.88 %, Transversus abdominis muscle - 5.19 %. Measurements of C7, Th7, L3 spine angle showed that it increased by 2 degrees when sitting on Back app and Human Tool unstable chairs. CONCLUSIONS: Sitting on unstable surfaces for 6 weeks significantly increased Multifidus and Transversus abdominis muscles activity, which are responsible for spine stabilization. Unstable chairs, especially Back app and Human Tool, have positive influence on the posture of participants. It means that chairs, mentioned above, it is proper for prolonged sitting position at workplace due to improvement of the posture and muscles activity.","PeriodicalId":151729,"journal":{"name":"2018 International Conference BIOMDLORE","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127839528","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

Skin Alterations in Pseudoxanthoma Elasticum Patients Highlighted by the Bi-Dimensional Sample Entropy Algorithm 二维样本熵算法突出显示弹性假黄瘤患者的皮肤改变

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467188

Mirvana Hilal, Clémence Berthin, L. Martin, A. Humeau-Heurtier

{"title":"Skin Alterations in Pseudoxanthoma Elasticum Patients Highlighted by the Bi-Dimensional Sample Entropy Algorithm","authors":"Mirvana Hilal, Clémence Berthin, L. Martin, A. Humeau-Heurtier","doi":"10.1109/BIOMDLORE.2018.8467188","DOIUrl":"https://doi.org/10.1109/BIOMDLORE.2018.8467188","url":null,"abstract":"BACKGROUND: Pseudoxanthoma elasticum (PXE) is a hereditary disease that manifests - among others - with papular lesions on the skin. The presence of these papules is the earliest sign of the pathology. Their detection is therefore of importance but, due to their small size, this can become a difficult task. This is why dermoscopy, a noninvasive imaging modality, may be of interest. Nevertheless, the detection of papules on dermoscopic images is still a challenge. OBJECTIVE: We propose an image processing framework to help in the detection of papules from dermoscopic images. Our algorithm is based on the recently-proposed bi-dimensional sample entropy. METHODS: Seven PXE patients participated to the study. For each of them, one dermoscopic image of the neck (where the papules are predominant), and one dermoscopic image of a normal skin zone have been recorded. For each one, the bi-dimensional sample entropy has been computed. RESULTS: We observed statistically significantly lower bi-dimensional sample entropy values on the dermoscopic images of the neck than on the dermoscopic images of the normal zone. CONCLUSION: These preliminary findings show that the bi-dimensional sample entropy might be of interest for the diagnosis and follow-up of the PXE pathology.","PeriodicalId":151729,"journal":{"name":"2018 International Conference BIOMDLORE","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125623759","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

EMG Signal Processing in Frequency Domain 频域肌电信号处理

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467189

Malaorzata Parfieniuk

引用次数: 0

Proceedings of 12th International Conference Biomdlore 2018 2018年第12届生物材料国际会议论文集

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/biomdlore.2018.8467201

J. Griškevičius, G. Gaidulis

引用次数: 0

The Concept of a Spectrophotometer for Soil Sample Testing 土壤样品分光光度计的概念

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467212

Barbara Kuc

引用次数: 0

Generation of the Three-Dimensional Finite-Element Model Based on the Images of the Surroundings of the Object Contours 基于物体轮廓周围图像的三维有限元模型生成

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467199

K. Kurochka, Denis Nikolaevich Trubenok

引用次数: 0

Flow-Induced Accumulations of Von Willebrand Factor Inside Oxygenators During Extracorporeal Life Support Therapy 体外生命支持治疗期间氧合器内血管性血友病因子的血流诱导积累

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/biomdlore.2018.8467205

Clemens Birkenmaier, Tamara Steiger, A. Philipp, K. Lehle, L. Krenkel

{"title":"Flow-Induced Accumulations of Von Willebrand Factor Inside Oxygenators During Extracorporeal Life Support Therapy","authors":"Clemens Birkenmaier, Tamara Steiger, A. Philipp, K. Lehle, L. Krenkel","doi":"10.1109/biomdlore.2018.8467205","DOIUrl":"https://doi.org/10.1109/biomdlore.2018.8467205","url":null,"abstract":"BACKGROUND: Shear-induced conformational changes of von Willebrand factor (vWF) may be responsible for coagulation disorder and clot formation inside membrane oxygenators (MOs) during extracorporeal membrane oxygenation (ECMO) therapy. OBJECTIVE: The aim was to identify vWF structures inside clinically used MOs and employ computational fluid dynamics to verify the corresponding flow conditions. METHODS: Samples from gas exchange membranes (GEM) from MOs were analysed for accumulations of vWF and P-selectin-positive platelets using immunofluorescence techniques. Streamlines and shear rates of the flow around GEMs were computed using a laminar steady Reynolds-Averaged-Navier-Stokes approach. RESULTS: Most samples were colonized with equally distributed leukocytes, integrated in thin cobweb-like vWF-structures. Only 25 % of the samples showed extended accumulations of vWF. Computed streamlines showed considerable cross flow between interconnected neighbouring channels. Stagnation points were non-symmetric and contact faces were washed around closely. The occurring maximum shear rates ranged from 2,500 to 3,000 1/s. CONCLUSIONS: If pronounced vWF structures are present, shape and extent match the flow computations well. Computed shear rates bear a critical degree of uncertainty due to the improper viscosity model. If flow conditions inside the MO were sufficient to affect vWF, a more consistent distribution of vWF across the samples should be present.","PeriodicalId":151729,"journal":{"name":"2018 International Conference BIOMDLORE","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129890207","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

Low-Cost Prototype Design of Biomedical Sensing Device for ECG and EMG Signal Acquisition System 心电肌电信号采集系统生物医学传感装置的低成本原型设计

2018 International Conference BIOMDLORE Pub Date : 2018-06-01 DOI: 10.1109/BIOMDLORE.2018.8467208

Shin-Chi Lai, Ying-Hsiu Hung, Ying-Ting Chang

引用次数: 3