Browsing by Author "Bonnier, Guillaume"
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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 ... -
Accuracy of blood pressure measurement across BMI categories using the OptiBP™ mobile application
Caillat, Mary; Degott, Jean; Wuerzner, Arlene; Proença, Martin; Bonnier, Guillaume; Knebel, Jean-François; Stoll, Chloé; Christen, Urvan; Durgnat, Virginie; Hofmann, Gregory; Burnier, Michel; Wuerzner, Grégoire; Schoettker, Patrick (2022-12-31) -
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 ... -
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 ... -
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 ... -
Electronic fetal monitoring system (ELAINE): Novel technique for non-invasive assessment of the fetal electrocardiogram
Radan, Anda-Petronela; Delgado-Gonzalo, Ricard; Bonnier, Guillaume; Strahm, Karin Maya; Yilmaz, Gürkan; Schneider, Sophie; Lemay, Mathieu; Surbek, Daniel (2021-06-23) -
Evaluation of a cuffless watch-like sensor for 24-hour ambulatory blood pressure monitoring
Rexhaj, Emrush; Proença, Martin; Ambuehl, Jeremias; Bonnier, Guillaume; Lemay, Mathieu (2021-08-27) -
Evaluation of a Wearable System for Fetal ECG Monitoring Using Cooperative Sensors
Braun, Fabian; Bonnier, Guillaume; Rapin, Michaël; Yilmaz, Gürkan; Proust, Yara-Maria; Schneider, Sophie; Radan, Anda-Petronela; Strahm, Karin Maya; Surbek, Daniel; Lemay, Mathieu; Delgado-Gonzalo, Ricard (2022-07-11)Fetal electrocardiography (fECG) has gotten widespread interest in the last years as technology for fetal monitoring. Compared to cardiotocography (CTG), the current state of the art, it can be designed in smaller formfactor ... -
Feature Learning for Blood Pressure Estimation from Photoplethysmography
Aguet, Clémentine; Zaen, Jérôme Van; Jorge, João; Proença, Martin; Bonnier, Guillaume; Frossard, Pascal; Lemay, Mathieu (2021-11)Blood pressure (BP) is an important indicator for prevention and management of cardiovascular diseases. Alongside the improvement in sensors and wearables, photoplethysmography (PPG) appears to be a promising technology ... -
Influence of Measurement Location on Reflectance Pulse Oximetry in Sleep Apnea Patients: Wrist vs. Upper Arm
Braun, Fabian; Bonnier, Guillaume; Theurillat, Patrick; Proença, Martin; Proust, Yara-Maria; Baty, Florent; Boesch, Maximillian; Annaheim, Simon; Brutsche, Martin; Ferrario, Damien; Lemay, Mathieu (2021-10-31) -
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) -
Machine Learning Approaches For Improved Continuous, Non-occlusive Arterial Pressure Monitoring Using Photoplethysmography
Jorge, Joao; Proenca, Martin; Aguet, Clementine; Van Zaen, Jerome; Bonnier, Guillaume; Renevey, Phillipe; Lemkaddem, Alia; Schoettker, Patrick; Lemay, Mathieu (2020) -
Multi-Parametric Vital Sign Estimation for Monitoring of Sleep Disordered Breathing
Braun, Fabian; Baty, Florent; Van Zaen, Jérôme; Bonnier, Guillaume; Renevey, Philippe; Theurillat, Patrick; Proença, Martin; Proust, Yara-Maria; Boesch, Maximillian; Schoch, Otto D.; Ferrario, Damien; Lemay, Mathieu; Annaheim, Simon; Brutsche, Martin (2021-06-17) -
Non-Invasive Blood Pressure Monitoring During Anesthesia Induction
Proença, Martin; Ghamri, Yassine; Braun, Fabian; Bonnier, Guillaume; Hofmann, Gregory; Renevey, Philippe; Solà, Josep; Axis, Alexandre; Schoettker, Patrick; Lemay, Mathieu (2019-08) -
PPG-Based Blood Pressure Monitoring by Pulse Wave Analysis: Calibration Parameters are Stable for Three Months
Proenca, Martin; Bonnier, Guillaume; Ferrario, Damien; Verjus, Christophe; Lemay, Mathieu (2019)The current non-invasive gold standard for the measurement of blood pressure (BP) is the oscillometric cuff at the upper arm, despite its known limitations. In particular, its poor adequacy with continuous monitoring and ... -
Proof-of-Concept Study for Reflectance Pulse Oximetry Using Optical-Fibre-Based Sensors
Annaheim, Simon; Braun, Fabian; Bernhard, Leah; Pfammatter, Amarin; Proença, Martin; Bonnier, Guillaume; Ferrario, Damien; Lemay, Mathieu; Rossi, René M. (2022)Optical fibres enable to design of new textile-based sensors for an unobtrusive, continuous, and long-term acquisition of photoplethysmography (PPG) signals. However, no detailed information is available in the scientific ... -
Pulse Wave Analysis Techniques
Proença, Martin; Renevey, Philippe; Braun, Fabian; Bonnier, Guillaume; Delgado-Gonzalo, Ricard; Lemkaddem, Alia; Verjus, Christophe; Ferrario, Damien; Lemay, Mathieu (2019) -
Smartphone based blood pressure measurement: accuracy of the OptiBP mobile application according to the AAMI/ESH/ISO universal validation protocol
Degott, Jean; Ghajarzadeh-Wurzner, Arlene; Hofmann, Gregory; Proença, Martin; Bonnier, Guillaume; Lemkaddem, Alia; Lemay, Mathieu; Christen, Urvan; Knebel, Jean-François; Durgnat, Virginie; Burnier, Michel; Wuerzner, Gregoire; Schoettker, Patrick (2021) -
Smartphone-based optical blood pressure monitoring in the acute care setting: Accuracy compared to invasive blood pressure measurement
Hofmann, Gregory; Degott, Jean; Schorer, Raoul; Bonnier, Guillaume; Proença, Martin; Schoettker, Patrick (2020-10) -
Towards Unobtrusive Long-Term Monitoring of Sleep Apnea Syndrome
Braun, Fabian; Baty, Florent; Van Zaen, Jérôme; Bonnier, Guillaume; Renevey, Philippe; Theurillat, Patrick; Proença, Martin; Proust, Yara-Maria; Boesch, Maximillian; Schoch, Otto D.; Annaheim, Simon; Brutsche, Martin; Ferrario, Damien; Lemay, Mathieu (2021-09-12)