BIOSPIN - Biomedical Signal Processing and Interpretation
La investigació s’emmarca en l’àmbit de l’Enginyeria Biomèdica. S’adreça al disseny i desenvolupament de tècniques avançades de processament de senyals biomèdics multimodals per a la monitorització no invasiva, diagnòstic, prevenció i tractament de malalties. Explorem nous mètodes per a la interpretació d’informació clínicament rellevant dels senyals biomèdics. L’objectiu és millorar el diagnòstic a través de la caracterització dels fenòmens fisiològics, aplicat a les principals malalties cardíacs, respiratories, neurològiques i trastorns del son. També desenvolupem bases de dades de biosenyals, realitzades conjuntament amb els hospitals per avaluar el rendiment dels algoritmes desenvolupats. I estudiem els algorismes proposats en models animals. El grup compta amb múltiples col·laboracions internacionals, incloent empreses i hospitals, d’Europa, Canadà i Estats Units. Actualment, els nostres prototipus s'utilitzen als hospitals per recerca i per a un futur desenvolupament industrial.
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Articles de revista [26]
Recent Submissions
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Linear mixed effects modelling of oxygen desaturation after sleep apneas and hypopneas: a pilot study
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Restricted access - publisher's policyObstructive Sleep Apnea severity is commonly determined after a sleep polysomnographic study by the Apnea-Hypopnea Index (AHI). This index does not contain information about the duration of events, and weights apneas and ... -
Neural offset time evaluation in surface respiratory signals during controlled respiration
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Restricted access - publisher's policyThe electrical activity of the diaphragm measured by surface electromyography (sEMGdi) provides indirect information on neural respiratory drive. Moreover, it allows evaluating the ventilatory pattern from the onset and ... -
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 ... -
Evaluation of a wearable device to determine cardiorespiratory parameters from surface diaphragm electromyography
(2019)
Article
Open AccessUsing wearable devices in clinical routines could reduce healthcare costs and improve the quality of assessment in patients with chronic respiratory diseases. The purpose of this study is to evaluate the capability of a ... -
Noninvasive assessment of inspiratory muscle neuromechanical coupling during inspiratory threshold loading
(Institute of Electrical and Electronics Engineers (IEEE), 2019-12-16)
Article
Open AccessDiaphragm neuromechanical coupling (NMC), which reflects the efficiency of conversion of neural activation to transdiaphragmatic pressure (Pdi), is increasingly recognized to be a useful clinical index of diaphragm function ... -
Sleep stage influence on the autonomic modulation of sleep apnea syndrome
(2019)
Conference report
Open AccessHypoxia induced by obstructive sleep apnea (OSA) leads to the deregulation of the autonomic nervous system (ANS), resulting in an abnormally increased sympathetic activity. Since ANS modulation varies throughout the night, ... -
Non-linear HRV analysis to quantify the effects of intermittent hypoxia using an OSA rat model
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Open AccessIn this paper, a non-linear HRV analysis was performed to assess fragmentation signatures observed in heartbeat time series after intermittent hypoxia (IH). Three markers quantifying short-term fragmentation levels, PIP, ... -
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 ... -
Performance evaluation of fixed sample entropy in myographic signals for inspiratory muscle activity estimation
(2019-02-01)
Article
Open AccessFixed sample entropy (fSampEn) has been successfully applied to myographic signals for inspiratory muscle activity estimation, attenuating interference from cardiac activity. However, several values have been suggested for ... -
Class imbalance impact on the prediction of complications during home hospitalization: a comparative study.
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference report
Open AccessHome hospitalization (HH) is presented as a healthcare alternative capable of providing high standards of care when patients no longer need hospital facilities. Although HH seems to lower healthcare costs by shortening ... -
Acoustic analysis of snoring sound in patients with simple snoring and obstructive sleep apnoea
(1996-11-09)
Article
Open AccessSnoring, a symptom which may indicate the presence of the obstructive sleep apnoea syndrome (OSA), is also common in the general population. Recent studies have suggested that the acoustic characteristics of snoring sound ... -
Entropy analysis of acoustic signals recorded with a smartphone for detecting apneas and hypopneas: A comparison with a commercial system for home sleep apnea diagnosis
(Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
Article
Open AccessObstructive sleep apnea (OSA) is a prevalent disease, but most patients remain undiagnosed and untreated. Here we propose analyzing smartphone audio signals for screening OSA patients at home. Our objectives were to: (1) ...
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