Exploració per tema "Medical electronics"
Ara es mostren els items 1-20 de 100
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A comprehensive model for power line interference in biopotential measurements
(Institute of Electrical and Electronics Engineers, 2000-06-30)
Article
Accés obertPower line interference is a major problem in high-resolution biopotential measurements. Because interference coupling is mostly capacitive, shielding electrode leads and a high common-mode rejection ratio (CMRR) are ... -
A methodology to quantify the differences between alternative methods of heart rate variability measurement
(Institute of Physics (IOP), 2015-12-14)
Article
Accés obertThis work proposes a systematic procedure to report the differences between heart rate variability time series obtained from alternative measurements reporting the spread and mean of the differences as well as the agreement ... -
A novel artifact reconstruction method applied to blood pressure signals
(2018)
Text en actes de congrés
Accés obert -
A Novel Assist-as-Needed Controller for Locomotion Training in the fMRI
(Universitat Politècnica de Catalunya / Eidegenössische Technische Hochschule Zürich, 2011)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorIn this thesis it is explained the work done in order to develop a patient-cooperative control that assists only as it is needed for the MR-compatible stepper (MARCOS) developed at the Sensory Motor System Lab of ETH Zürich. ... -
Acute sleep deprivation induces a local brain transfer information increase in the frontal cortex in a widespread decrease context
(2016-04-01)
Article
Accés obertSleep deprivation (SD) has adverse effects on mental and physical health, affecting the cognitive abilities and emotional states. Specifically, cognitive functions and alertness are known to decrease after SD. The aim of ... -
AD5933-based system for transthoracic impedance measurements
(Universitat Politècnica de Catalunya / University of Borås, 2012-08-31)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: Blekinge Institute of Technology / Högskolan i Borås[ANGLÈS] Electrical Bioimpedance (EBI) through transthoracic measurements offers a non-invasive manner to measure hemodynamic values. In the last decades, advances in the field of electrodes, electronic hardware and the ... -
Agreement between two photoplethysmography-based wearable devices for monitoring heart rate during different physical activity situations: a new analysis methodology
(Nature, 2022-09-14)
Article
Accés obertWearables are being increasingly used to monitor heart rate (HR). However, their usefulness for analyzing continuous HR in research or at clinical level is questionable. The aim of this study is to analyze the level of ... -
An improved buffer for bioelectric signals
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1989-04-01)
Article
Accés obertWe propose an AC-coupled amplifier that offers a high in-put impedance, thus making it suitable for bioelectric signal amplifi- cation. We also present the necessary formulas for calculating its input impedance and transfer ... -
Analysis and optimization of the spectral density array parameters in a depth of anesthesia monitoring device
(Universitat Politècnica de Catalunya, 2024-01-26)
Treball Final de Grau
Accés restringit per acord de confidencialitat
Realitzat a/amb: Quantum MedicalAquesta tesi realitza una recerca exhaustiva sobre els paràmetres de densitat espectral (DSA) en dispositius de monitoratge de la profunditat anestèsica (DoA), posant l’accent en la seva aplicació en el dispositiu de ... -
Analysis of a cardiovascular model for the study of the autonomic response of Brugada syndrome patients
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper describes the integration of mathematical models of the cardiac electrical activity, the cardiovascular system and the baroreceptor reflex control of the autonomic nervous system, with a model representing a ... -
Analysis of cardiorespiratory interaction in patients submitted to the T-tube test in the weaning process implementing symbolic dynamics and neural networks
(2018)
Text en actes de congrés
Accés restringit per política de l'editorialThe determination of the optimal time of the patients in weaning trial process from Mechanical Ventilation (MV), between patients capable of maintaining spontaneous breathing and patients that fail to maintain spontaneous ... -
Analysis of ECG in athletes running in mountain route conditions
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Text en actes de congrés
Accés obertThe purpose of this work is to analyse changes in ECG and heart rate variability (HRV) metrics in athletes during 10 km running in mountain route conditions. Eighteen healthy athletes carrying a 12-lead ECG GE Holter ... -
Analysis of the breathing pattern in elderly patients using the Hurst exponent applied to the respiratory flow signal
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialDue to the increasing elderly population and the extensive number of comorbidities that affect them, studies are required to determine future increments in admission to emergency departments. Some of these studies could ... -
Analysis of the cardiorespiratory pattern of patients undergoing weaning using artificial intelligence
(2023-03-01)
Article
Accés obertThe optimal extubating moment is still a challenge in clinical practice. Respiratory pattern variability analysis in patients assisted through mechanical ventilation to identify this optimal moment could contribute to this ... -
Analysis of the effect of deviated modulating signal characteristics on the susceptibility of a small medical device
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés restringit per política de l'editorialA variety of modulation techniques using various signal characteristics are used by the telecommunication industry in real-life applications. Despite this, the radiated immunity test based on the IEC 61000-4-3 only modulates ... -
Analysis of time delay between bioimpedance and respiratory volume signals under inspiratory loaded breathing
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Comunicació de congrés
Accés obertBioimpedance is known for its linear relation with volume during normal breathing. For that reason, bioimpedance can be used as a noninvasive and comfortable technique for measuring respiration. The goal of this study is ... -
Assessing pulmonary function parameters non-invasively by electrical bioimpedance tomography
(Springer Nature, 2023-12-28)
Article
Accés restringit per política de l'editorial -
Assessment of responsiveness levels during sedation-analgesia by entropy analysis of EEG
(2016-03-18)
Article
Accés obertThe level of sedation in patients undergoing medical procedures is decided to assure unconsciousness and prevent pain. The monitors of depth of anesthesia, based on the analysis of the electroencephalogram (EEG), have been ... -
Banda inalàmbrica que mesura l'ectrecardiograma i la respiració
(Universitat Politècnica de Catalunya, 2013-12-10)
Treball Final de Grau
Accés obert[ANGLÈS] The objective of this project is to create a device able to monitor at the same time the respiration and the electrocardiography (ECG) of a patient in ambulatory situations. From these signals, several data can ...