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2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)最新文献

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Investigation of numerical models for planning of electrochemotherapy treatments of invasive ductal carcinoma 浸润性导管癌电疗方案的数值模型研究
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-07-07 DOI: 10.1109/GMEPE-PAHCE.2017.7972100
A. L. Vera-Tizatl, B. Kos, D. Miklavčič, A. Vera-Hernández, L. Leija-Salas, C. E. Vera-Tizatl, S. Rodriguez-Cuevas
{"title":"Investigation of numerical models for planning of electrochemotherapy treatments of invasive ductal carcinoma","authors":"A. L. Vera-Tizatl, B. Kos, D. Miklavčič, A. Vera-Hernández, L. Leija-Salas, C. E. Vera-Tizatl, S. Rodriguez-Cuevas","doi":"10.1109/GMEPE-PAHCE.2017.7972100","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972100","url":null,"abstract":"Three numerical models are presented in this work i. e., a reference model and interpolated models varying geometrical traits, material properties, boundary conditions and mesh size to establish their effects in the resultant electric field during electrochemotherapy. For static conductivity the results show that the use of an interpolation function grid of 1 mm and a normal mesh are suitable for further more complex models. On the other hand an iterative increasing conductivity behavior describes better the increasing conductivity phenomenon reported to be caused by electroporation. The results reported in this work could be useful in further modeling of breast tumors and development of treatment planning for electrochemotherapy based on invasive ductal carcinoma.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115259833","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
The use of a novel genetic algorithm in component selection for a kNN method for breast cancer prognosis 使用一种新的遗传算法在成分选择的kNN方法的乳腺癌预后
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-20 DOI: 10.1109/GMEPE-PAHCE.2017.7972084
A. Pawlovsky, H. Matsuhashi
{"title":"The use of a novel genetic algorithm in component selection for a kNN method for breast cancer prognosis","authors":"A. Pawlovsky, H. Matsuhashi","doi":"10.1109/GMEPE-PAHCE.2017.7972084","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972084","url":null,"abstract":"This paper shows the application of a genetic algorithm (GA) for component selection to improve the accuracy of a kNN (k-Nearest Neighbor) method when using it for breast cancer prognosis. Our GA uses the best chromosome (member) in a generation to produce new ones. The probabilities of crossover and mutation have not fixed values, instead they depend on the evaluation of the chromosomes involved in the generation of new ones. The GA determines the best components that must be used in prognosis by the kNN method. This method for the UCI breast cancer data usually gives a 76% average accuracy, but we have found a combination of only sixteen components that rises the average accuracy of kNN to 79%.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129935782","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: 16
Ultrasonic measurement of Young's modulus in tissues by overtones estimation in broadband multi-pulse wall echoes: An example in arterial tubular phantom 利用频宽多脉冲壁回波的泛音估计超声测量组织中的杨氏模量:以动脉管状幻像为例
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972122
A. Ramos, I. Bazán, G. Balay, C. Negreira, J. Brum
{"title":"Ultrasonic measurement of Young's modulus in tissues by overtones estimation in broadband multi-pulse wall echoes: An example in arterial tubular phantom","authors":"A. Ramos, I. Bazán, G. Balay, C. Negreira, J. Brum","doi":"10.1109/GMEPE-PAHCE.2017.7972122","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972122","url":null,"abstract":"For getting reliable measurements of the arteries state, by a non-invasive via, to prevent dangerous vascular events (heart attacks, atheromas, cerebral strokes, etc.), ultrasonic tools must be used. Nevertheless, the conventional echographic equipment gives a poor spatial resolution (several hundreds of micron), clearly insufficient to study the arterial elastic properties. In this paper, the possibility of performing a spectral study of ultrasonic echoes coming from arterial walls, is analyzed, with the aim of seeing viability of achieving a much better estimation of the arterial elasticity, respecting to previous ultrasonic tools proposed with this aim. A comparison will be made between preliminary results obtained with our new proposal and with the better classical procedure for elastic measurements: the cross-correlation based techniques. Results suggest that our hypothesis can constitute a promising via to attain a non-invasive diagnostic of the arterial state with high resolution, by the measurement of its Young's elastic modulus.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128918715","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 and optical detection from fluorescence of Ochratoxin A 赭曲霉毒素A的低成本光学荧光检测
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972087
D. Bueno, R. Muñoz, J. Marty
{"title":"Low cost and optical detection from fluorescence of Ochratoxin A","authors":"D. Bueno, R. Muñoz, J. Marty","doi":"10.1109/GMEPE-PAHCE.2017.7972087","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972087","url":null,"abstract":"Ochratoxin A (OTA) is one of the most abundant food-contaminating mycotoxins, is detected worldwide in various food and feed sources and its toxicity in animals is more potent than other metabolites. Detected by the analytical methods, in spite of their high sensitivity, these methods are not suitable for analysis in-situ. Hence, this work consists to develop a low cost and portable system to quantify the concentrations of OTA through ownership of fluorescence. That occurs when it is excited with ultraviolet light (UV) at 375nm. First, an UV emitter and a silicon photodiodes were used; the limit of detection (LOD) was 250 ng/mL, a battery as source and an acquisition system with LabVIEW to process the information in a computer. To detect lower levels, a camera and red, blue and green (RGB) components were employed. The LOD was 5 µg/L. The camera detected the fluorescence in the sample when this was excited with UV light, the variation in the intensity of the color is measured and it has relation with the concentration of the sample.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129223014","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
Preliminary study of the communications system for a National Bank of Patients Doses 国家病人剂量库通信系统的初步研究
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972090
M. A. Rodriguez-Hernandez, I. Rodrigo-Boix, J. Vilar-Palop, N. Llorca-Domaica
{"title":"Preliminary study of the communications system for a National Bank of Patients Doses","authors":"M. A. Rodriguez-Hernandez, I. Rodrigo-Boix, J. Vilar-Palop, N. Llorca-Domaica","doi":"10.1109/GMEPE-PAHCE.2017.7972090","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972090","url":null,"abstract":"This work shows the first results of a preliminary study of a communication system for a ‘National Bank of Patient Doses’, in the Spanish National Health System. The communication system is based on the Metro-Ethernet networks available in most of the medical assistance centers. The work proposes the design of the frame with the necessary information to transmit after each radiological exposition. From this frame, the first estimation of the communications traffic associated with the ‘National Bank of Patient Doses’ has been done for Castilla-La Mancha region. The influence of this new traffic has been evaluated in both the transmitters and in the final receptor ‘National Bank of patient doses’. The results obtained from this experience are going to be the extended to the other regions of Spain.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"120 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113935092","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
Estimation of the main properties in locking plates design for a proximal humerus fracture with the finite element method and DOE 用有限元法和DOE估计肱骨近端骨折锁定钢板设计的主要性能
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972121
I. Mendoza-Muñoz, Á. González-Ángeles, G. Jacobo-Galicia, R. López-Avitia
{"title":"Estimation of the main properties in locking plates design for a proximal humerus fracture with the finite element method and DOE","authors":"I. Mendoza-Muñoz, Á. González-Ángeles, G. Jacobo-Galicia, R. López-Avitia","doi":"10.1109/GMEPE-PAHCE.2017.7972121","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972121","url":null,"abstract":"About 20% of humerus fractures need a surgical treatment. Surgical options include closed reduction and percutaneous fixation, open reduction and internal fixation and prosthetic arthroplasty [1]. Recent studies have shown high failure rates after fixation of proximal humerus fractures with a range of 8.6% to 22%. Accordingly, loss of reduction and screw cut-out are the most common reasons for a revision or reoperation surgery [2]. Is thought that the above can occur due to the great rigidity of the implant, which could increases the stress between the implant-bone interfaces leading to the screw cut-out. However, excessively elastic implants lead to premature failure [3]. This study aims to examine 3 main properties (and interactions) in the locking plates design, allowing to estimate the optimal scenarios using the finite element method (FEM) and design of experiments (DOE).","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132253822","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
Computational system for early diagnostic of Rheumatoid Arthritis, using variables of process and artificial intelligence 基于过程变量和人工智能的类风湿关节炎早期诊断计算系统
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972107
D. Hernández-Rosales, A. Alarcón-Paredes, I. Guzmán-Guzmán, J. E. Navarro-Zarza, G. A. Alonso-Silverio
{"title":"Computational system for early diagnostic of Rheumatoid Arthritis, using variables of process and artificial intelligence","authors":"D. Hernández-Rosales, A. Alarcón-Paredes, I. Guzmán-Guzmán, J. E. Navarro-Zarza, G. A. Alonso-Silverio","doi":"10.1109/GMEPE-PAHCE.2017.7972107","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972107","url":null,"abstract":"Rheumatoid Arthritis (RA) is a disease that mainly affects women in working age. This disease is more visible in the hands due to the number of joints they have. Often, traditional detection methods have a high economic cost, are inaccessible and in some cases subjective. In this paper, a computer system to help in the diagnosis of RA, by means of process variables, is presented. Results show that our system is able to classify between data from people diagnosed with RA, and the healthy ones.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115056570","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
On the influence of mother wavelet in denoising of ultrasonic hepatic signals with Undecimated Wavelet Transform 母小波对肝超声信号去噪的影响
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972092
M. A. Rodriguez-Hernandez
{"title":"On the influence of mother wavelet in denoising of ultrasonic hepatic signals with Undecimated Wavelet Transform","authors":"M. A. Rodriguez-Hernandez","doi":"10.1109/GMEPE-PAHCE.2017.7972092","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972092","url":null,"abstract":"In this work it is evaluated the influence of mother wavelet in denoising of ultrasonic hepatic signals with Undecimated Wavelet Transform (UWT). First, it is performed a study over simulated ultrasonic signals with different types of mother wavelets and thresholds. The results of this evaluation are applied to ultrasonic hepatic signals. This work shows both the influence of the mother wavelet and the threshold in the final denoised traces.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126726919","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
Computational method to measure vascular lesions in human brain digital images 测量人脑数字图像中血管病变的计算方法
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972113
N. P. Castellanos-Abrego, P. Carrillo-Mora, J. Cantillo-Negrete, R. Carino-Escobar, J. Gutiérrez-Martínez
{"title":"Computational method to measure vascular lesions in human brain digital images","authors":"N. P. Castellanos-Abrego, P. Carrillo-Mora, J. Cantillo-Negrete, R. Carino-Escobar, J. Gutiérrez-Martínez","doi":"10.1109/GMEPE-PAHCE.2017.7972113","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972113","url":null,"abstract":"Brain injury volume computation has clinical importance since stroke patient's recovery may be assessed with it. Tools currently employed in the clinical field can only compute injury volumes with qualitative and manual methods. The present work proposes a semiautomatic computational method for calculating these volumes. Users of the method are only required to select a single point comprising the injury from one of the slides of a series of medical images. This seed point is used by the proposed algorithm to compute the average and standard deviation of the gray scale magnitude of adjacent pixels which comprise the injury. The method was tested using magnetic resonance images and compared with the volume manually computed by experts using a medical image viewer software. The proposed method showed an absolute error of 7.8%, compared with the averaged volume computed by the experts. Therefore, it is possible to estimate volumes of brain injuries with the proposed semi-automatic algorithm. This method could help decrease the time invested by clinical personnel in computing brain lesions' volumes.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122563262","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
Music as an enhancer for imagined movement 音乐是想象运动的助推器
2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE) Pub Date : 2017-03-01 DOI: 10.1109/GMEPE-PAHCE.2017.7972091
Parada J Ladd, S. C. Alvarado, Salgado JM Gutiérrez, CJ James
{"title":"Music as an enhancer for imagined movement","authors":"Parada J Ladd, S. C. Alvarado, Salgado JM Gutiérrez, CJ James","doi":"10.1109/GMEPE-PAHCE.2017.7972091","DOIUrl":"https://doi.org/10.1109/GMEPE-PAHCE.2017.7972091","url":null,"abstract":"Relying on the existing evidence that music enhances cognitive functions such as imagination and it also induces movement, this paper explored the possibility of music as an enhancer for imagined movement tasks. As a comparison, the task were also performed in silence and listening to noise. Music prove to be an enhancer, increasing the mean amplitude and energy of the EEG (p<0.001), as well as facilitating the left/right discrimination, albeit with modified target frequencies band. This was caused by the synchronisation of EEG signals with the music played.","PeriodicalId":311444,"journal":{"name":"2017 Global Medical Engineering Physics Exchanges/Pan American Health Care Exchanges (GMEPE/PAHCE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127945232","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
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