Browsing by Subject "Electrocardiografia"
Now showing items 1-20 of 113
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A 36 µW 1.1 mm2 reconfigurable analog front-end for cardiovascular and respiratory signals recording
(2018-04-06)
Article
Open AccessThis paper presents a 1.2 V 36 µW reconfigurable analog front-end (R-AFE) as a general-purpose low-cost IC for multiple-mode biomedical signals acquisition. The R-AFE efficiently reuses a reconfigurable preamplifier, a ... -
A new aproach to electrocardiography : patient specific spatio-temporal ECG
(Universitat Politècnica de Catalunya, 2018-06)
Bachelor thesis
Restricted access - author's decisionEn aquest treball hem desenvolupat un nou sistema de visualització per electrocardiogrames, per tal de millorar els sistemes que s'utilitzaven fins ara. Amb l'objectiu de millorar el diagnòstics mèdics, hem desenvolupat ... -
A noninvasive, concealed electrocardiogram and bioimpedance measurement system for captive primates
(2023-08-21)
Article
Open AccessCaptive housed non-human primates, specifically great apes such as chimpanzees (Pan troglodytes) are frequently reported to have died from or are diagnosed with potentially fatal heart conditions that require the monitoring ... -
A novel algorithm for fast BCG cycle extraction in ambulatory scenarios
(2016)
Conference lecture
Restricted access - publisher's policyA novel algorithm JDet for ballistocardiogram (BCG) cycle extraction is presented that is intended for the fast generation of ensemble averages in ambulatory scenarios where the ECG signal is not available. First, the ... -
A novel robust index to assess beat-to-beat variability in heart rate time-series analysis
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-06-30)
Article
Open AccessA new index is proposed to estimate the variance of the differentiated heart rate (RR) time series from its truncated histogram. The index is more robust to artifacts than the standard deviation of the differentiated RR ... -
A simple low-cost electrocardiogram synchronizer
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-09-01)
Article
Open AccessElectrocardiogram (ECG) synchronization is useful to avoid the effects of cardiac motion in medical measurements, and is widely used in standard medical imaging. A number of medical equipment include embedded commercial ... -
Adaptation of algorithms for the detection of ECG waves and their analysis
(Universitat Politècnica de Catalunya, 2024-02-20)
Tutored research work
Restricted access - author's decisionHeart rate variability (HRV) is an indicator of autonomic activity. As such, it is said to be able to detect signs of disease and can be used to estimate disease status. Recently, the usefulness of the QT interval has been ... -
Adaptation of algorithms for the detection of ECG waves and their analysis
(Universitat Politècnica de Catalunya, 2024-02-20)
Tutored research work
Restricted access - author's decisionHeart rate variability (HRV) is an indicator of autonomic activity. As such, it is said to be able to detect signs of disease and can be used to estimate disease status. Recently, the usefulness of the QT interval has been ... -
Advanced Interfaces for the development of music-therapy in people with disabilities
(Universitat Politècnica de Catalunya, 2019-06-25)
Bachelor thesis
Restricted access - author's decision -
Analysis of heart rate variability indices after selective acute atrial ischemia in humans
(Computing in Cardiology, 2018)
Conference lecture
Open AccessThe purpose of this work is to analyze the effect of selective atrial coronary artery occlusion on heart rate variability (HRV). Twelve-hour, Holter recording were studied in 109 patients undergoing elective percutaneous ... -
Analysis of homeostatic effects of buffering levels in a human ventricle computational model
(Universitat Politècnica de Catalunya, 2021-07-13)
Bachelor thesis
Open Access
Covenantee: University of LeedsIn this thesis we have studied the impact of changing buffering levels in cardiac homeostasis. The heart works by pumping blood through the body by beating. This beating motion originates in the cyclical contraction and ... -
Analysis of the cardiovascular response to autonomic nervous system modulation in Brugada syndrome patients
(Universitat Politècnica de Catalunya, 2017-11-10)
Doctoral thesis
Open Access
Covenantee: Université de RennesBrugada syndrome (BS) is a genetic arrhythmogenic disease characterized by a distinctive electrocardiographic pattern, associated with a high risk for sudden cardiac death (SCD) due to ventricular fibrillation (VF) in ... -
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 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 ... -
Análisis automático de señales de Holter: adquisición, preprocesado y clasificación mediante Machine Learning
(Universitat Politècnica de Catalunya, 2012-09-27)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Análisis de biomarcadores electrocardiográficos en pacientes con Síndrome de Brugada
(Universitat Politècnica de Catalunya, 2021-05-31)
Bachelor thesis
Open AccessEl síndrome de Brugada es una patología cardiaca eléctrica primaria genéticamente determinada. Esta se caracteriza por alteraciones electrocardiográficas distintivas, en donde el paciente puede llegar a presentar muerte ... -
Análisis de la coherencia entre la señal ECG y el flujo respiratorio en sujetos sanos
(Universitat Politècnica de Catalunya, 2020-10-10)
Bachelor thesis
Restricted access - author's decisionL'anàlisi de la coherència entre senyals biomèdics és una eina molt útil en l'àmbit mèdic per entendre la interacció entre els sistemes que representen. Aquest treball se centra en l'anàlisi de coherència entre la ... -
Análisis de la variabilidad de intervalos de tiempo del ECG
(Universitat Politècnica de Catalunya, 2001-11-19)
Doctoral thesis
Open AccessLa prolongación y el aumento de la dispersión del intervalo QT han sido propuestos como factores de riesgo de arritmias ventriculares malignas en varias condiciones clínicas, entre ellas en pacientes con infarto de miocardio ... -
Análisis de los biomarcadores electrocardiográficos en pacientes con cardiopatía arritmogénica ventricular izquierda
(Universitat Politècnica de Catalunya, 2022-07-06)
Bachelor thesis
Open AccessLa cardiopatia arritmogènica de ventricle Esquerre (AVLC) és una afecció cardíaca que provoca el creixement del teixit fibrogras en aquest ventricle del cor. Aquesta malaltia pot arribar a provocar greus complicacions i ... -
Análisis del ECG en monitorización ambulatoria para el diagnóstico cardíaco y la predicción de muerte cardíaca súbita
(Universitat Politècnica de Catalunya, 2001-01-25)
Doctoral thesis
Open AccessLa muerte cardíaca súbita (SCD) es uno de los desafíos más importantes de la cardiología moderna debido al elevado número de personas que fallecen repentinamente sin presentar síntomas previos. Una de las principales causas ...
