Browsing by Subject "Respiració -- Mesurament"
Now showing items 1-20 of 50
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An invasive and a noninvasive approach for the automatic differentiation of obstructive and central hypopneas
(2010-04-15)
Article
Open AccessThe automatic differentiation of obstructive and central respiratory events is a major challenge in the diagnosis of sleep-disordered breathing. Esophageal pressure (Pes) measurement is the gold-standard method to ... -
Analysis of time delay between bioimpedance and respiratory volume signals under inspiratory loaded breathing
(Institute of Electrical and Electronics Engineers (IEEE), 2019-10-07)
Article
Open AccessBioimpedance 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 ... -
Analysis of time delay between bioimpedance and respiratory volume signals under inspiratory loaded breathing
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Open AccessBioimpedance 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 ... -
Analysis of tracheal and pulmonary continuous adventitious respiratory sounds in asthma
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Restricted access - publisher's policyContinuous adventitious sounds (CAS) are commonly observed in obstructive pulmonary diseases and are of great clinical interest. However, their evaluation is generally subjective. We have previously developed an automatic ... -
Anàlisi temporal i freqüencial del patró respiratori en pacients ancians
(Universitat Politècnica de Catalunya, 2020-06-23)
Bachelor thesis
Restricted access - confidentiality agreement -
Assessment of respiratory flow cycle morphology in patients with chronic heart failure
(2017-02-01)
Article
Open AccessBreathing pattern as periodic breathing (PB) in chronic heart failure (CHF) is associated with poor prognosis and high mortality risk. This work investigates the significance of a number of time domain parameters for ... -
Automatic differentiation of obstructive and central hypopneas with esophageal pressure measurement during sleep
(2009)
Conference report
Open AccessThe differentiation between obstructive and central respiratory events is one of the most recurrent tasks in the diagnosis of sleep disordered breathing. Esophageal pressure measurement is the gold-standard method to ... -
Base de datos de señales respiratorias de sujetos sanos
(Universitat Politècnica de Catalunya, 2009-01-12)
Master thesis (pre-Bologna period)
Open AccessActualment l'estudi de la respiració en subjectes sans per a la determinació d'un patró respiratori es un tema poc estudiat i la publicació d'informació es escassa. En aquest projecte final de carrera s'ha realitzat un ... -
Breathing pattern estimation using wearable bioimpedance for assessing COPD severity
(2022-09-19)
Article
Open AccessBreathing pattern has been shown to be different in chronic obstructive pulmonary disease (COPD) patients compared to healthy controls during rest and walking. In this study we evaluated respiratory parameters and the ... -
Caracterització i anàlisi de la morfologia del senyal de la veu
(Universitat Politècnica de Catalunya, 2019-07-08)
Bachelor thesis
Restricted access - author's decisionQualsevol intervenció quirúrgica amb anestèsia general requereix la intubació del pacient per mantenir la seva activitat respiratòria. Aquest procés pot presentar dificultats depenent de la morfologia i anatomia de la via ... -
Caracterització i classificació del patró respiratori periòdic en pacients amb insuficiència cardíaca crònica
(Universitat Politècnica de Catalunya, 2020-07-15)
Bachelor thesis
Restricted access - confidentiality agreement -
Chest movement and respiratory volume both contribute to thoracic bioimpedance during loaded breathing
(Nature, 2019-12-27)
Article
Open AccessBioimpedance has been widely studied as alternative to respiratory monitoring methods because of its linear relationship with respiratory volume during normal breathing. However, other body tissues and fluids contribute ... -
Comparison of video-based methods for respiration rhythm measurement
(2019-05-01)
Article
Open AccessThe aim of this work is to characterize the di erences in the respiratory rhythm obtained through three video based methods by comparing the obtained respiratory signals with the one obtained with the gold standard method ... -
Correntropy-based nonlinearity test applied to patients with chronic heart failure
(2010)
Conference report
Open AccessIn this study we propose the correntropy function as a discriminative measure for detecting nonlinearities in the respiratory pattern of chronic heart failure (CHF) patients with periodic or nonperiodic breathing pattern ... -
Detecció del senyal respiratori a partir de l'ECG en subjectes sans
(Universitat Politècnica de Catalunya, 2018-06-26)
Bachelor thesis
Open AccessEl senyal electrocardiogràfic (ECG) registra l’activitat elèctrica del cor. Aquest senyal està influenciat per la respiració. Aquesta influència es manifesta en l’ECG en forma de modulació, que pot ser en amplitud, en ... -
Detecting unilateral phrenic paralysis by acoustic respiratory analysis
(2014-04-09)
Article
Open AccessThe consequences of phrenic nerve paralysis vary from a considerable reduction in respiratory function to an apparently normal state. Acoustic analysis of lung sound intensity (LSI) could be an indirect non-invasive ... -
Diferenciación automática de hipopneas mediante la señal de presión esofágica durante el sueño
(2009)
Conference report
Restricted access - publisher's policyLa diferenciación entre hipopneas obstructivas y centrales es uno de los trabajos más recurrentes en el diagnóstico de los trastornos respiratorios del sueño. La medición de presión esofágica (Pes) es el método gold-standard ... -
Engineering sleep disorders : from classical CPAP devices toward new intelligent adaptive ventilatory therapy
(2014-09-01)
Article
Restricted access - publisher's policyAmong the most common sleep disorders are those related to disruptions in airflow (apnea) or reductions in the breath amplitude (hypopnea) with or without obstruction of the upper airway (UA). One of the most important ... -
Entropía aproximada móvil con valores de tolerancia fijos como medida de las variaciones de amplitud en señales biomédicas
(2011)
Conference report
Open AccessEn este trabajo se presenta un nuevo método para cuantificar las variaciones de amplitud en señales biomédicas empleando la entropía aproximada (ApEn) en ventanas móviles y con valores de tolerancia (r) fijos. Los valores ... -
Estimation of bilateral asynchrony between diaphragm mechanomyographic signals in patients with Chronic Obstructive Pulmonary Disease
(2014)
Conference report
Restricted access - publisher's policyThe aim of the present study was to measure bilateral asynchrony in patients suffering from Chronic Obstructive Pulmonary Disease (COPD) performing an incremental inspiratory load protocol. Bilateral asynchrony was estimated ...
