Browsing by Author "Proença, Martin"
Now showing items 1-20 of 48
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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 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) -
Accuracy and reliability of noninvasive stroke volume monitoring via ECG-gated 3D electrical impedance tomography in healthy volunteers
Braun, Fabian; Proença, Martin; Adler, Andy; Riedel, Thomas; Thiran, Jean-Philippe; Solà, Josep (2018-01-26)Cardiac output (CO) and stroke volume (SV) are parameters of key clinical interest. Many techniques exist to measure CO and SV, but are either invasive or insufficiently accurate in clinical settings. Electrical impedance ... -
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) -
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) -
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 ... -
Continuous non-invasive monitoring of blood pressure in the operating room: a cuffless optical technology at the fingertip
Solà, Josep; Proença, Martin; Braun, Fabian; Pierrel, Nicolas; Degiorgis, Yan; Verjus, Christophe; Lemay, Mathieu; Bertschi, Mattia; Schoettker, Patrick (2016-09-01)Abstract Routine monitoring of blood pressure during general anaesthesia relies on intermittent measurements with a non-invasive brachial cuff every five minutes. This manuscript provides first experimental ... -
Continuous non-occlusive blood pressure monitoring at the sternum
Proença, Martin; Falhi, Abdessamad; Ferrario, Damien; Grossenbacher, Olivier; Porchet, Jacques-André; Krauss, Jens; Sola, Josep (2012-09-16) -
Cooperative dry-electrode sensors for multi-lead biopotential and bioimpedance monitoring
Rapin, Michaël; Proença, Martin; Braun, Fabian; Meier, Christophe; Solà, Josep; Ferrario, Damien; Grossenbacher, Olivier; Porchet, Jacques-André; Chételat, Olivier (2015) -
Cuffless blood pressure monitoring at the chest: single-channel reflective PPG sensors are inaccurate
Solà, Josep; Vybornova, Anna; Braun, Fabian; Proença, Martin; Delgado-Gonzalo, Ricard; Ferrario, Damien; Verjus, Christophe; Bertschi, Mattia; Pierrel, Nicolas; Degiorgis, Yan; Schoettker, Patrick (2017-07) -
Cuffless Blood Pressure Monitoring: Experimental Evidences of a Beat-to-Beat PPG Technique
Solà, Josep; Proença, Martin; Muntané, Enric; Verjus, Christophe; Lemay, Mathieu; Bertschi, Mattia; Schoettker, Patrick; Krauss, Jens (2016) -
Distribution of Pulmonary Pulse Arrival in the Healthy Human Lung
Braun, Fabian; Proença, Martin; Lemay, Mathieu; Adler, Andy (2019-07)The pulmonary artery pressure (PAP) can be noninvasively assessent using the EIT-derived pulmonary pulse arrival time (PAT). However, the spatial distribution of PAT is poorly understood. We analyzed the spatial distri- ... -
EIT measurement of pulmonary artery pressure in neonatal lambs
Braun, Fabian; Proença, Martin; Sage, Michaël; Praud, Jean-Paul; Lemay, Mathieu; Adler, Andy; Fortin-Pellerin, Étienne (2019-07)Pulmonary artery pressure (PAP) is inversely related to the pulse arrival time (PAT) of the EIT signal in the lungs. The goal of this study is to evaluate whether PAT-based EIT measures can accurately monitor directly-measured ... -
EIT-Derived Stroke Volume is Impaired by Belt Displacement
Braun, Fabian; Proença, Martin; Solà, Josep; Lemay, Mathieu; Thiran, J.-Ph. (2016) -
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) -
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 ...