Journal of Electrical Bioimpedance最新文献_第8页

Bioimpedance to Assess the Body Composition of High-performance Karate Athletes: Applications, Advantages and Perspectives. 生物阻抗评估高水平空手道运动员的身体组成:应用、优势和展望。

Journal of Electrical Bioimpedance Pub Date : 2021-11-20 eCollection Date: 2021-01-01 DOI: 10.2478/joeb-2021-0009

Luciana Rossi

引用次数: 2

Electrical Impedance Tomography - Recent Applications and Developments. 电阻抗断层成像-最近的应用和发展。

Journal of Electrical Bioimpedance Pub Date : 2021-11-20 eCollection Date: 2021-01-01 DOI: 10.2478/joeb-2021-0007

Sofiene Mansouri, Yousef Alharbi, Fatma Haddad, Souhir Chabcoub, Anwar Alshrouf, Amr A Abd-Elghany

引用次数: 10

Electrical Impedance Characterization of in Vivo Porcine Tissue Using Machine Learning. 用机器学习表征猪体内组织的电阻抗。

Journal of Electrical Bioimpedance Pub Date : 2021-07-02 eCollection Date: 2021-01-01 DOI: 10.2478/joeb-2021-0005

Stephen Chiang, Matthew Eschbach, Robert Knapp, Brian Holden, Andrew Miesse, Steven Schwaitzberg, Albert Titus

{"title":"Electrical Impedance Characterization of in Vivo Porcine Tissue Using Machine Learning.","authors":"Stephen Chiang, Matthew Eschbach, Robert Knapp, Brian Holden, Andrew Miesse, Steven Schwaitzberg, Albert Titus","doi":"10.2478/joeb-2021-0005","DOIUrl":"https://doi.org/10.2478/joeb-2021-0005","url":null,"abstract":"The incorporation of sensors onto the stapling platform has been investigated to overcome the disconnect in our understanding of tissue handling by surgical staplers. The goal of this study was to explore the feasibility of in vivo porcine tissue differentiation using bioimpedance data and machine learning methods. In vivo electrical impedance measurements were obtained in 7 young domestic pigs, using a logarithmic sweep of 50 points over a frequency range of 100 Hz to 1 MHz. Tissues studied included lung, liver, small bowel, colon, and stomach, which was further segmented into fundus, body, and antrum. The data was then parsed through MATLAB's classification learner to identify the best algorithm for tissue type differentiation. The most effective classification scheme was found to be cubic support vector machines with 86.96% accuracy. When fundus, body and antrum were aggregated together as stomach, the accuracy improved to 88.03%. The combination of stomach, small bowel, and colon together as GI tract improved accuracy to 99.79% using fine k nearest neighbors. The results suggest that bioimpedance data can be effectively used to differentiate tissue types in vivo. This study is one of the first that combines in vivo bioimpedance tissue data across multiple tissue types with machine learning methods.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":"12 1","pages":"26-33"},"PeriodicalIF":0.0,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8336307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39327991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Technology of Two-dimensional Bioimpedance Analysis of the Human Body Composition. 人体成分的二维生物阻抗分析技术。

Journal of Electrical Bioimpedance Pub Date : 2021-07-02 eCollection Date: 2021-01-01 DOI: 10.2478/joeb-2021-0004

S P Shchelykalina, D V Nikolaev, V A Kolesnikov, K A Korostylev, O A Starunova

{"title":"Technology of Two-dimensional Bioimpedance Analysis of the Human Body Composition.","authors":"S P Shchelykalina, D V Nikolaev, V A Kolesnikov, K A Korostylev, O A Starunova","doi":"10.2478/joeb-2021-0004","DOIUrl":"https://doi.org/10.2478/joeb-2021-0004","url":null,"abstract":"The BIA primary result sheets as a rule contain one-dimensional graphical scales with a selected area of normal values. In 1994, Piccoli et al. proposed BIVA, an alternative form of BIA data presentation, where two bioimpedance parameters are considered simultaneously as tolerance ellipses: resistance and reactance normalized to height. The purpose of this study is to develop an approach to data analysis in body composition bioimpedance research in two-dimensional representations. The data of 1.124.668 patients aged 5 to 85 years who underwent a bioimpedance study in Russian Health Centers from 2009 to 2015 were used. Statistical programming in the R Studio environment was carried out to estimate two-dimensional distribution densities of pairs of body composition parameters for each year of life. The non-Gaussian distribution is found in most parameters of bioimpedance analysis of body composition for most ages (Lilliefors test, p-value << 0.0001). The slices of the actual two-dimensional distribution pairs of body composition parameters had an irregular shape. The authors of the article propose using the actually observed distribution for populations where numerous bioimpedance studies have already been carried out. Such technology can be called two-dimensional bioimpedance analysis of human body composition (2DBIA). The 2DBIA approach is clearer for practitioners and their patients due to the use of body composition parameters in addition to electrical impedance parameters.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":"12 1","pages":"17-25"},"PeriodicalIF":0.0,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8336308/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39328049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Segmental Volume and Circulatory Changes that Occur in Humans and Rhesus Monkeys During 4 Hour, -6 Degree Head Down Tilt. 人类和恒河猴在 4 小时-6 度低头倾斜过程中发生的节段体积和循环变化。

Journal of Electrical Bioimpedance Pub Date : 2021-04-17 eCollection Date: 2021-01-01 DOI: 10.2478/joeb-2021-0003

Leslie David Montgomery, Clarence Oloff

引用次数: 0

Electrical Bioimpedance: From the Past to the Future. 电生物阻抗:从过去到未来。

Journal of Electrical Bioimpedance Pub Date : 2021-03-30 eCollection Date: 2021-01-01 DOI: 10.2478/joeb-2021-0001

Leigh C Ward

引用次数: 8

Electrical Impedance to Easily Discover Undeclared Freeze-thaw Cycles in Slaughtered Bovine Meat. 易发现屠宰牛肉中未申报的冻融循环的电阻抗。

Journal of Electrical Bioimpedance Pub Date : 2021-03-30 eCollection Date: 2021-01-01 DOI: 10.2478/joeb-2021-0002

A H Dell'Osa, G Battacone, G Pulina, A Fois, F Tocco, A Loviselli, A Concu, F Velluzzi

引用次数: 3

Design of Howland Current Sources Using Differential Evolution Optimization. 基于差分进化优化的Howland电流源设计。

Journal of Electrical Bioimpedance Pub Date : 2020-12-31 eCollection Date: 2020-01-01 DOI: 10.2478/joeb-2020-0014

Kaue Felipe Morcelles, Lucas Hermann Negri, Pedro Bertemes-Filho

引用次数: 2

Design of a Drop-in EBI Sensor Probe for Abnormal Tissue Detection in Minimally Invasive Surgery. 用于微创手术异常组织检测的嵌入式EBI传感器探头设计。

Journal of Electrical Bioimpedance Pub Date : 2020-12-31 eCollection Date: 2020-01-01 DOI: 10.2478/joeb-2020-0013

Guanming Zhu, Liang Zhou, Shilong Wang, Pengjie Lin, Jing Guo, Shuting Cai, Xiaoming Xiong, Xiaobing Jiang, Zhuoqi Cheng

{"title":"Design of a Drop-in EBI Sensor Probe for Abnormal Tissue Detection in Minimally Invasive Surgery.","authors":"Guanming Zhu, Liang Zhou, Shilong Wang, Pengjie Lin, Jing Guo, Shuting Cai, Xiaoming Xiong, Xiaobing Jiang, Zhuoqi Cheng","doi":"10.2478/joeb-2020-0013","DOIUrl":"https://doi.org/10.2478/joeb-2020-0013","url":null,"abstract":"It is a common challenge for the surgeon to detect pathological tissues and determine the resection margin during a minimally invasive surgery. In this study, we present a drop-in sensor probe based on the electrical bioimpedance spectroscopic technology, which can be grasped by a laparoscopic forceps and controlled by the surgeon to inspect suspicious tissue area conveniently. The probe is designed with an optimized electrode and a suitable shape specifically for Minimally Invasive Surgery (MIS). Subsequently, a series of ex vivo experiments are carried out with porcine liver tissue for feasibility validation. During the experiments, impedance measured at frequencies from 1 kHz to 2 MHz are collected on both normal tissues and water soaked tissue. In addition, classifiers based on discriminant analysis are developed. The result of the experiment indicate that the sensor probe can be used to measure the impedance of the tissue easily and the developed tissue classifier achieved accuracy of 80% and 100% respectively.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":" ","pages":"87-95"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7851984/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25368262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Finite Element Simulation of the Impedance Response of a Vascular Segment as a Function of Changes in Electrode Configuration. 血管段阻抗响应随电极配置变化的有限元模拟

Journal of Electrical Bioimpedance Pub Date : 2020-12-31 eCollection Date: 2020-01-01 DOI: 10.2478/joeb-2020-0017

M Amini, H Kalvøy, Ø G Martinsen

{"title":"Finite Element Simulation of the Impedance Response of a Vascular Segment as a Function of Changes in Electrode Configuration.","authors":"M Amini, H Kalvøy, Ø G Martinsen","doi":"10.2478/joeb-2020-0017","DOIUrl":"10.2478/joeb-2020-0017","url":null,"abstract":"Monitoring a biological tissue as a three dimensional (3D) model is of high importance. Both the measurement technique and the measuring electrode play substantial roles in providing accurate 3D measurements. Bioimpedance spectroscopy has proven to be a noninvasive method providing the possibility of monitoring a 3D construct in a real time manner. On the other hand, advances in electrode fabrication has made it possible to use flexible electrodes with different configurations, which makes 3D measurements possible. However, designing an experimental measurement set-up for monitoring a 3D construct can be costly and time consuming and would require many tissue models. Finite element modeling methods provide a simple alternative for studying the performance of the electrode and the measurement set-up before starting with the experimental measurements. Therefore, in this study we employed the COMSOL Multiphysics finite element modeling method for simulating the effects of changing the electrode configuration on the impedance spectroscopy measurements of a venous segment. For this purpose, the simulations were performed for models with different electrode configurations. The simulation results provided us with the possibility of finding the optimal electrode configuration including the geometry, number and dimensions of the electrodes, which can be later employed in the experimental measurement set-up.","PeriodicalId":38125,"journal":{"name":"Journal of Electrical Bioimpedance","volume":" ","pages":"112-131"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7851985/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25368266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0