Exploració per autor "Rosell Ferrer, Francisco Javier"
Ara es mostren els items 26-45 de 64
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Help4Mood: testing and achievements of the first wireless sensor network prototype
(2012)
Text en actes de congrés
Accés restringit per política de l'editorialHelp4Mood is a closed loop approach supporting the control, communication and treatment management of patients with Major Depression. The first out of the three main components of the Help4Mood solution is the Personal ... -
Implantable bioimpedance monitor using ZigBee
(2009)
Text en actes de congrés
Accés obertIn this paper, a novel implantable bioimpedance monitor using a free ZigBee protocol for the transmission of the measured data is described. The application field is the tissue and organ monitoring through electrical ... -
Improvement of the actimetry agreement among sites by proper choice of signal processing stages
(2012)
Text en actes de congrés
Accés restringit per política de l'editorialPhysical activity (PA) has been identified as a key health indicator and has been assessed in multiple studies as the study of cardiovascular diseases, diabetes mellitus, obesity and psychological conditions. For this ... -
In-bed vital signs monitoring system based on unobtrusive magnetic induction method with a concentric planar gradiometer
(Institute of Physics (IOP), 2017-05-22)
Article
Accés obertSignificance. Unobtrusive vital signs monitoring is of major importance for various medical areas such as detection and treatment of sleep disorders, monitoring neonates and burned victims, home health care and smart home ... -
Interpulse multifrequency electrical impedance measurements during electroporation of adherent differentiated myotubes
(2015-10-01)
Article
Accés obertIn this study, electrical impedance spectroscopy measurements are performed during electroporation of monolayers of differentiated myotubes. The time resolution of the system (1 spectrum/ms) enable 860 full spectra (21 ... -
Localized BIA identifies structural and pathophysiological changes in soft tissue after post-traumatic injuries in soccer
(2014)
Text en actes de congrés
Accés restringit per decisió de l'autorLocalized bioimpedance (BIA) was measured with a single frequency phase-sensitive analyzer at 50 kHz in three post-traumatic types of injuries on four professional soccer players: (1) myositis ossificans, (2) intramuscular ... -
Longitudinal and transversal bioimpedance measurements in addition to diagnosis of heart failure
(2010)
Text en actes de congrés
Accés obertHeart Failure (HF) is a clinical syndrome characterised by signs of systemic and pulmonary fluid retention, shortness of breath and/or fatigue. There is a lack of reliable indicators of disease state. Benefits and ... -
Measurement errors in multifrequency bioelectrical impedance analyzers with and without impedance electrode mismatch.
(2009-06-03)
Article
Accés restringit per decisió de l'autorThe purpose of this study is to compare measurement errors in two commercially available multi-frequency bioimpedance analyzers, a Xitron 4000B and an ImpediMed SFB7, including electrode impedance mismatch. The comparison ... -
Minimally invasive lung tissue differentiation using electrical impedance spectroscopy: a comparison of the 3- and 4-electrode methods
(Institute of Electrical and Electronics Engineers (IEEE), 2021-12-28)
Article
Accés obertMultiple imaging techniques are used for the diagnosis of lung diseases. The choice of a technique depends on the suspected diagnosis. Computed tomography (CT) of the thorax and positron emission tomography (PET) are imaging ... -
Monitoring cell monolayers during electroporation: Electrical impedance spectroscopy measurements
(2013)
Text en actes de congrés
Accés obertElectroporation or electropermeabilization is a phenomenon observed when lipid bilayers, generally cell membranes, are exposed to high electric field pulses becoming transiently permeable to molecules that under regular ... -
Multifrequency right-side, localized and segmental BIA obtained with different bioimpedance analyzers
(Institute of Physics (IOP), 2014-12-12)
Article
Accés restringit per política de l'editorialThe aim of this study is to compare two commercial bioimpedance analysers, BioparHom Z-Métrix and Impedimed SFB7, measuring the impedance of three different body segments. The segments measured were 'right-side' (or ... -
Multisite recording of extracellular potentials produced by microchannel-confined neurons in-vitro
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-02-28)
Article
Accés obertTowards establishing electrical interfaces with patterned in vitro neurons, we have previously described the fabrication of hybrid elastomer-glass devices polymer-on-multielectrode array technology and obtained single-electrode ... -
Muscle fatigue monitoring using a multifrequency bioimpedance technique
(Springer, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialThe objective of this work is to measure the changes of electrical bioimpedance module and phase related to muscular fatigue. The results could also be interesting for medical diagnosis of leg oedema, related to heart ... -
Myocardial contractility assessed by dynamic electrical impedance measurements during dobutamine stress
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Comunicació de congrés
Accés restringit per política de l'editorialIn this study, the electrical impedance of myocardial tissue is measured dynamically during the cardial cycle. The multisine-based approach used to perform electrical impedance spectroscopy (EIS) measurements allows ... -
On the zero- and first-order interpolation in synthesized wave for testing purposes
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1992-12-02)
Article
Accés obertThis paper deals with the quality requirements of synthesized sine waves reconstructed through a zero- or first- order hold for testing purposes, in particular when a switching demodulator is used. In this case, the ... -
Performance of an implantable impedance spectroscopy monitor using ZigBee
(2010-04-04)
Comunicació de congrés
Accés restringit per política de l'editorialThis paper presents the characterization measurements of an implantable bioimpedance monitor with ZigBee. Such measurements are done over RC networks,performing short and long-term measurements, with and without mismatch ... -
Phase angle by electrical bioimpedance is a predictive factor of hospitalisation, falls and mortality in patients with cirrhosis
(Nature, 2021-10-14)
Article
Accés obertThe phase angle is a versatile measurement to assess body composition, frailty and prognosis in patients with chronic diseases. In cirrhosis, patients often present alterations in body composition that are related to adverse ... -
Physiological conditioning by electric field stimulation promotes cardiomyogenic gene expression in human cardiomyocyte progenitor cells
(2014-08-04)
Article
Accés obertThe optimal cell lineage for cardiac-regeneration approaches remains mysterious. Additionally, electrical stimulation promotes cardiomyogenic differentiation of stimulated cells. Therefore, we hypothesized that electrical ... -
Propagation of measurement noise through backprojection reconstruction in electrical impedance tomography
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2002-06-30)
Article
Accés obertA framework to analyze the propagation of measurement noise through backprojection reconstruction algorithms in electrical impedance tomography (EIT) is presented. Two measurement noise sources were considered: noise in ... -
Recognition of fibrotic infarct density by the pattern of local systolic-diastolic myocardial electrical impedance
(2016-08-31)
Article
Accés obertMyocardial electrical impedance is a biophysical property of the heart that is influenced by the intrinsic structural characteristics of the tissue. Therefore, the structural derangements elicited in a chronic myocardial ...
