Browsing by Author "Renevey, Philippe"
Now showing items 1-20 of 46
-
A systematic classification of cuffless blood pressure monitoring techniques: the three-layer framework
Solà, Josep; Proença, Martin; Braun, Fabian; Delgado-Gonzalo, Ricard; Ferrario, Damien; Renevey, Philippe; Verjus, Christophe; Lemay, Mathieu; Chetelat, Olivier; Bertschi, Mattia; Krauss, Jens (2017) -
Accurate walking and running speed estimation using wrist inertial data
Bertschi, Mattia; Celka, Patrick; Delgado-Gonzalo, Ricard; Lemay, Mathieu; Muntané, Enric; Grossenbacher, Olivier; Renevey, Philippe (2015)In this work, we present an accelerometry-based device for robust running speed estimation integrated into a watch-like device. The estimation is based on inertial data processing, which consists in applying a leg-and-arm ... -
An Adaptive Organization Index to Characterize Atrial Fibrillation using Wrist:Type Photoplethysmographic Signals
Fallet, Sibylle; Lemay, Mathieu; Renevey, Philippe; Leupi, Celestin; Pruvot, Etienne; Vesin, Jean-Marc (2016-09-14)The ability of photoplethysmography (PPG)-based wearable monitors to diagnose atrial ?brillation (AF) is still partly unexplored. This study aims at quantifying the level of organization of PPG signals, using a measure ... -
An autonomous medical monitoring system: Validation on arrhythmia detection
Lemkaddem, Alia; Proenca, Martin; Delgado-Gonzalo, Ricard; Renevey, Philippe; Oei, Ing; Montano, Giuseppe; Martinez-Heras, Jose-Antonio; Donati, Alessandro; Bertschi, Mattia; Lemay, Mathieu (2017)In this paper, we present a generic platform for autonomous medical monitoring and diagnostics. We validated the platform in the context of arrhythmia detection with publicly available databases. The big advantage of this ... -
Applications of Optical Cardiovascular Monitoring
Lemay, Mathieu; Bertschi, Mattia; Sola, Josep; Renevey, Philippe; Genzoni, Elsa; Proença, Martin; Ferrario, Damien; Braun, Fabian; Parak, Jakub; Korhonen, Ilkka (2020-11-13) -
Atrial Fibrillation Detection from PPG Interbeat Intervals via a Recurrent Neural Network
Van Zaen, Jérôme; Genzoni, Elsa; Braun, Fabian; Renevey, Philippe; Pruvot, Etienne; Vesin, Jean-Marc; Lemay, Mathieu (2019)Atrial ?brillation (AF) affects millions of individuals worldwide and can lead to serious complications such as stroke or heart failure. This arrhythmia is dif?cult to diagnose with ambulatory electrocardiogram monitors ... -
Automated Pulse Oximeter Waveform Analysis to Track Changes in Blood Pressure During Anesthesia Induction: A Proof-of-Concept Study
Ghamri, Yassine; Proença, Martin; Hofmann, Gregory; Renevey, Philippe; Bonnier, Guillaume; Braun, Fabian; Axis, Alexandre; Lemay, Mathieu; Schoettker, Patrick (2020)BACKGROUND: Intraoperative hypotension is associated with postoperative complications and death. Oscillometric brachial cuffs are used to measure arterial pressure (AP) in most surgical patients but may miss acute changes ... -
Can one detect atrial fibrillation using a wrist-type photoplethysmographic device?
Fallet, Sibylle; Lemay, Mathieu; Renevey, Philippe; Leupi, Célestin; Pruvot, Etienne; Vesin, Jean-Marc (2019) -
Challenging the Limitations of Atrial Fibrillation Detection in the Presence of Other Cardiac Arrythmias
Genzoni, Elsa; Braun, Fabian; Van Zaen, Jérôme; Renevey, Philippe; Lemay, Mathieu; Pruvot, Etienne; Vesin, Jean-Marc (2020-07) -
Detection of beat-to-beat intervals from wrist photoplethysmography in patients with sinus rhythm and atrial fibrillation after surgery
Tarniceriu, Adrian; Harju, Jarkko; Vehkaoja, Antti; Parak, Jakub; Delgado-Gonzalo, Ricard; Renevey, Philippe; Yli-Hankala, Arvi; Korhonen, Ilkka (2018)Wrist photoplethysmography (PPG) allows unobtrusive monitoring of the heart rate (HR). PPG is affected by the capillary blood perfusion and the pumping function of the heart, which generally deteriorate with age and due ... -
Detection of Mood Changes in Bipolar Patients though Monitoring of Physiological and Behavioral Signals
Schleusing, Olaf; Renevey, Philippe; Bertschi, Mattia; Dasen, Stephan; Paradiso, Rita (2011-09-14)In this paper we present a personal, costeffective, multi-parametric monitoring system based on a textile platform and portable sensing devices for the long term and short term acquisition of data from bipolar patients ... -
Discrimination of entangled photon pair from classical photons by de Broglie wavelength
Mitev, Valentin; Balet, Laurent; Torcheboeuf, Nicolas; Renevey, Philippe; Boiko, Dmitri L. (2020) -
Evaluation of accuracy and reliability of PulseOn optical heart rate monitoring device
Delgado-Gonzalo, Ricard; Parak, Jakub; Tarniceriu, Adrian; Renevey, Philippe; Bertschi, Mattia; Korhonen, Ilkka (2015)PulseOn is a wrist-worn optical heart rate (HR) monitor based on photoplethysmography. It utilizes multiwavelength technology and optimized sensor geometry to monitor blood flow at different depths of skin tissue, and it ... -
Evaluation of the beat-to-beat detection accuracy of PulseOn wearable optical heart rate monitor
Parak, Jakub; Tarniceriu, Adrian; Renevey, Philippe; Bertschi, Mattia; Delgado-Gonzalo, Ricard; Korhonen, Ilkka (2015)Heart rate variability (HRV) provides significant information about the health status of an individual. Optical heart rate monitoring is a comfortable alternative to ECG based heart rate monitoring. However, most available ... -
Human Energy Expenditure Models: Beyond State-of-the-Art Commercialized Embedded Algorithms
Delgado-Gonzalo, Ricard; Renevey, Philippe; Calvo, Enric M.; Solà, Josep; Lanting, Cees; Bertschi, Mattia; Lemay, Mathieu (2014)In the present study, we propose three new energy expenditure (EE) methods and evaluate their accuracy against state-of-the-art EE estimation commercialized devices. To this end, we used several sensors on 8 subjects to ... -
Learning a physical activity classifier for a low-power embedded wrist-located device
Delgado-Gonzalo, Ricard; Renevey, Philippe; Tarniceriu, Adrian; Parak, Jakub; Bertschi, Mattia (2018)This article presents and evaluates a novel algorithm for learning a physical activity classi?er for a low-power embedded wrist-located device. The overall system is designed for real-time execution and it is implemented ... -
Limitations of Unobtrusive Detection of Sleep Disordered Breathing using Heart Rate Variability
Cucu, Raluca; Braun, Fabian; Van Zaen, Jérôme; Renevey, Philippe; Lemkaddem, Alia; De Jaegere, Kurt; Horvath, Christian M.; Roth, Corinne; Brill, Anne-Kathrin; Lemay, Mathieu; Ott, Sebastian R. (2020-10) -
Long-term medical survey system
Chetelat, Olivier; O'Hare, Aidan; Pilloud, Pascal; Koller, Jean-Marc; Droz, Serge; Ridolfi, Andrea; Theurillat, Patrick; Renevey, Philippe; Sola, Josep; Grossenbacher, Olivier (2008-08-17)The European Space Agency (ESA) commissioned CSEM to design, build, validate and deliver one fully operational ground prototype of a system (LTMS2) measuring physiological parameters. The system was shipped and will be ... -
Machine learning approaches for improved continuous, non- - occlusive arterial pressure monitoring using photoplethysmography
Jorge, João; Aguet, Clementine; Van Zaen, Jérôme; Proença, Martin; Bonnier, Guillaume; Renevey, Philippe; Lemay, Mathieu (2019) -
Monitoring physiological and behavioral signals to detect mood changes of bipolar patients
Schleusing, Olaf; Renevey, Philippe; Bertschi, Mattia; Dasen, Stephan; Koller, Jean-Marc; Paradiso, Rita (2011)In this paper we present a personal, cost-effective, multi-parametric monitoring system based on textile platforms and portable sensing devices for the long term and short term acquisition of data from bipolar patients ...