WorldCat Identities

Seoane, Fernando

Overview
Works: 8 works in 11 publications in 1 language and 779 library holdings
Roles: Editor, Opponent, Author
Publication Timeline
.
Most widely held works by Fernando Seoane
Recent advances in ambient assisted living : bridging assistive technologies, e-health and personalized health care( )

4 editions published in 2015 in English and held by 777 WorldCat member libraries worldwide

Models and Simulations of the Electric Field in Deep Brain Stimulation : Comparison of Lead Designs, Operating Modes and Tissue Conductivity by Fabiola Alonso( )

1 edition published in 2018 in English and held by 1 WorldCat member library worldwide

Deep brain stimulation (DBS) is an established surgical therapy for movement disorders such as Parkinson’s disease (PD) and essential tremor (ET). A thin electrode is implanted in a predefined area of the brain with the use of stereotactic neurosurgery. In the last few years new DBS electrodes and systems have been developed with possibilities for using more parameters for control of the stimulation volume. In this thesis, simulations using the finite element method (FEM) have been developed and used for investigation of the electric field (EF) extension around different types of DBS lead designs (symmetric, steering) and stimulation modes (voltage, current). The electrode surrounding was represented either with a homogeneous model or a patient-specific model based on individual preoperative magnetic resonance imaging (MRI). The EF was visualized and compared for different lead designs and operating modes. In Paper I, the EF was quantitatively investigated around two lead designs (3389 and 6148) simulated to operate in voltage and current mode under acute and chronic time points following implantation.Simulations showed a major impact on the EF extension between postoperative time points which may explain the clinical decisions to change the stimulation amplitude weeks after implantation. In Paper II, the simulations were expanded to include two leads having steering function (6180, Surestim1) and patient-specific FEM simulations in the zona incerta. It was found that both the heterogeneity of the tissue and the operating mode, influence the EF distribution and that equivalent contact configurations of the leads result in similar EF. The steering mode presented larger volumes in current mode when using equivalent amplitudes. Simulations comparing DBS and intraoperative stimulation test using a microelectrode recording (MER) system (Paper III), showed that several parallel MER leads and the presence of the non-active DBS contacts influence the EF distribution and that the DBS EF volume can cover, but also extend to, other anatomical areas. Paper IV introduces a method for an objective exploitation of intraoperative stimulation test data in order to identify the optimal implant position in the thalamus of the chronic DBS lead. Patient-specific EF simulations were related to the anatomy with the help of brain atlases and the clinical effects which were quantified by accelerometers. The first results indicate that the good clinical effect in ET is due to several structures around the ventral intermediate nucleus of the thalamus
Design-Build Experience-Based Program in Biomedical Engineering as a Practical Example of Science for Professions by Barcelona, Spain, 5-7 July 2010 International Conference on Education and New Learning Technologies( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Aiming to implement the Motto "Science for Professions" follow at the University of Borås, the school of engineering has carry out a series of Design-Building Experiences (DBE) aimed to promote the development of specific engineering skills and attributes as well as personal and interpersonal competences on team work and communications, which have been selected from the CDIO syllabus. A total of three DBE activities have been implemented in a one-year master program in Biomedical Engineering. The learning outcome produce from the implementation of the teaching-learning activity has been evaluated from the point of view of the students, through a questionnaire. The answers from the students suggest that the activity has reached the intended goal, especially facilitating the development the students' own personal and professional engineering skills and attributes. The results of this survey also indicate the remarked concern of the students regarding the assessment of the activity and its contribution in the final grade of the course. In general the implementation of the DBE was a success and provides us with certain new knowledge about implementing student centered learning methods on international master programs
Training teachers in e-learning without Internet access by Ramon Garrote Jurado( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

In this paper the authors present a solution to the problem of giving practical training in handlinginformation and communication technology (ICT) without depending on internet access. The proposedmethod is to use an USB-memory to emulate selected educational resources that are otherwiseavailable on the internet or on a local network. How this method can influence pedagogical issues isdiscussed and, it is asserted that the method offers interesting learning advantages beyond theobvious independence of internet connections. The paper describes the planning and implementationof a course about the use of Learning Management Systems (LMS) in higher education and, inparticular, how it was designed to meet the needs of educators in a developing country with slow orunreliable internet connections. The course was a part of the project USo+I: Universidad, Sociedad eInnovación. Mejora de la pertinencia de la educación en las ingenierías de Latinoamérica (Universityand Society: Improving of the relevance of the education in the engineering of Latinoamerica) thisproject financed by the European Union, within the ALFA III program. The University of Borås wasassigned to design and teach a course about LMS to engineering educators in Latin-America
Development of a Software Application Suite for Electrical Bioimpedance Data Analysis by Alejandro Rodríguez Portero( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Cole Parameter Estimation from the Modulus of the Electrical Bioimpeadance for Assessment of Body Composition. A Full Spectroscopy Approach by Ruben Buendia( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Activities around applications of Electrical Bioimpedance Spectroscopy (EBIS) have proliferated in the past decade significantly. Most of these activities have been focused in the analysis of the EBIS measurements, which eventually might enable novel applications. In Body Composition Assessment (BCA), the most common analysis approach currently used in EBIS is based on the Cole function, which most often requires curve fitting. One of the most implemented approaches for obtaining the Cole parameters is performed in the impedance plane through the geometrical properties that the Cole function exhibit in such domain as depressed semi-circle. To fit the measured impedance data to a semi-circle in the impedance plane, obtaining the Cole parameters in an indirect and sequential manner has several drawbacks. Applying a Non-Linear Least Square (NLLS) iterative fitting on the spectroscopy measurement, obtains the Cole parameters considering the frequency information contained in the measurement. In this work, from experimental total right side EBIS measurements, the BCA parameters have been obtained to assess the amount and distribution of whole body fluids. The values for the BCA parameters have been obtained using values for the Cole parameters estimated with both approaches: circular fitting on the impedance plane and NLLS impedance-only fitting. The comparison of the values obtained for the BCA parameters with both methods confirms that the NLLS impedance-only is an effective alternative as Cole parameter estimation method in BCA from EBIS measurements. Using the modulus of the Cole function as the model for the fitting would eliminate the need for performing phase detection in the acquisition process, simplifying the hardware specifications of the measurement instrumentation when implementing a bioimpedance spectrometer
Cole parameter estimation from total right side electrical bioimpedance spectroscopy measurements Influence of the number of frequencies and the upper limit by Massachusetts USA, August 30 - September 3, 2011 33rd Annual International Conference of the IEEE EMBS Boston( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Applications based on measurements of Electrical Bioimpedance Spectrocopy (EBIS) analysis are proliferating. The most spread and known application of EBIS is the non-invasive assessment of body composition. Fitting to the Cole function to obtain the Cole parameters, R0 and R∞, is the core of the EBIS analysis to obtain the body fluid distribution. An accurate estimation of the Cole parameters is essential for the Body Composition Assessment (BCA) and the estimation process depends on several factors. One of them is the upper frequency limit used for the estimation and the other is the number of measured frequencies in the measurement frequency range. Both of them impose requirements on the measurement hardware, influencing largely in the complexity of the bioimpedance spectrometer. In this work an analysis of the error obtained when estimating the Cole parameters with several frequency ranges and different number of frequencies has been performed. The study has been done on synthetic EBIS data obtained from experimental Total Right Side (TRS) measurements. The results suggest that accurate estimations of R0 and R∞ for BCA measurements can be achieved using much narrower frequency ranges and quite fewer frequencies than electrical bioimpedance spectrometers commercially available nowadays do
Skin-Electrode Contact Area in Electrical Bioimpedance Spectroscopy. Influence in Total Body Composition Assessment by Boston, USA Sept, 2011 33st Annual International Conference of the IEEE Engineering in Medicine and Biology Society( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Electrical Bioimpedance Spectroscopy (EBIS) has been widely use for assessment of total body composition and fluid distribution. (EBIS) measurements are commonly performedwith electrolytic electrodes placed on the wrist and the ankle with a rather small skin-electrode contact area. The use of textile garments for EBI requires the integration of textrodes with a larger contact area surrounding the limbs in order to compensate the absence of electrolytic medium commonlypresent in traditional Ag/AgCl gel electrodes. Recently it has been shown that mismatch between the measurements electrodes might cause alterations on the EBIS measurements. When performing EBIS measurements with textrodes certaindifferences have been observed, especially at high frequencies, respect the same EBIS measurements using Ag/AgClelectrodes. In this work the influence of increasing the skinelectrodearea on the estimation of body compositionparameters has been study performing experimental EBISmeasurement. The results indicate that an increment on thearea of the skin-electrode interface did produce noticeablechanges in the bioimpedance spectra as well as in the bodycomposition parameters. This influence must be taken into consideration when designing and testing textile-enable EBIS measurement systems
 
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.11 (from 0.10 for Recent adv ... to 0.99 for Developmen ...)

Languages
English (11)