Browsing by Author "Lemay, Mathieu"
Now showing items 1-20 of 85
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4D Heart Model Helps Unveiling Contributors to Cardiac EIT Signal
Braun, Fabian; Proença, Martin; Rapin, Michael; Alba, Xenia; Lekadir, Karim; Lemay, Mathieu; Solà, Josep; Frangi, Alejandro F.; Thiran, Jean-Philippe (2015) -
A novel smartphone app for blood pressure measurement: a proof-of-concept study against an arterial catheter
Hofmann, Gregory; Proença, Martin; Degott, Jean; Bonnier, Guillaume; Lemkaddem, Alia; Lemay, Mathieu; Schorer, Raoul; Christen, Urvan; Knebel, Jean-François; Schoettker, Patrick (2022-06-21)Smartphones may provide a highly available access to simplified hypertension screening in environments with limited health care resources. Most studies involving smartphone blood pressure (BP) apps have focused on validation ... -
A Recurrent Neural Network to Classify Atrial Fibrillation from Ppg Interbeat Interval
Genzoni, Elsa; Van Zaen, Jérôme; Lemay, Mathieu; Pruvot, Etienne; Braun, Fabian; Vesin, Jean-Marc (2019-08) -
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 ... -
ADVANCED DIGITAL TECHNOLOGIES IN LIFE SCIENCES: PHOTONICS AND BEYOND
Paoletti, Samantha; Cattaneo, Stefano; Lecomte, Steve; Verjus, Christophe; Lemay, Mathieu; Volker, Andreas; Weder, Gilles; Revol, Vincent (2022-12-13)CSEM technologies aim to improve the quality of life of patients and make new treatments accessible for all. Life sciences companies’ central role in drug pricing and access to medicines puts them on the frontline of ... -
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 ... -
Aortic blood pressure measured via EIT: investigation of different measurement settings
Braun, Fabian; Proença, Martin; Rapin, Michael; Lemay, Mathieu; Adler, Andy; Grychtol, Bartłomiej; Solà, Josep; Thiran, Jean-Philippe (2015-06-01) -
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 ... -
BigBrain-MR: a computational phantom for ultra-high-resolution MR methods development
Sainz Martinez, Cristina; Lemay, Mathieu; Bach Cuadra, Meritxell; Jorge, João (2021-05-15) -
Blood pressure measurements with the OptiBP smartphone app validated against reference auscultatory measurements
Schoettker, Patrick; Degott, Jean; Hofmann, Gregory; Proença, Martin; Bonnier, Guillaume; Lemkaddem, Alia; Lemay, Mathieu; Schorer, Raoul; Christen, Urvan; Knebel, Jean-François; Wuerzner, Arlene; Burnier, Michel; Wuerzner, Gregoire (2020-10-20)Mobile health diagnostics have been shown to be effective and scalable for chronic disease detection and management. By maximizing the smartphones’ optics and computational power, they could allow assessment of physiological ... -
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) -
Cardiac Arrhythmia Detection from ECG with Convolutional Recurrent Neural Networks
Van Zaen, Jérôme; Delgado-Gonzalo, Ricard; Ferrario, Damien; Lemay, Mathieu (2019-02-22) -
Cardiac output measured by electrical impedance tomography: Applications and limitations
Proenca, Martin; Rapin, Michael; Braun, Fabian; Sola, Josep; Lemay, Mathieu; Thiran, Jean-Philippe (2014) -
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) -
Classification of Cardiac Arrhythmias from Single Lead ECG with a Convolutional Recurrent Neural Network:
Van Zaen, Jérôme; Chételat, Olivier; Lemay, Mathieu; Calvo, Enric; Delgado-Gonzalo, Ricard (2019) -
Comparability of a Blood-Pressure-Monitoring Smartphone Application with Conventional Measurements—A Pilot Study
Vischer, Annina S.; Rosania, Jana; Socrates, Thenral; Blaschke, Christina; Eckstein, Jens; Proust, Yara-Maria; Bonnier, Guillaume; Proença, Martin; Lemay, Mathieu; Burkard, Thilo (2022-02-13)(1) Background: New cuffless technologies attempting blood-pressure measurements (BPM) offer possibilities to improve hypertension awareness and control. The aim of this study was to compare a smartphone application ...