EPFL/STI/IEL/LTS5 
Expert in signals processing, biomedical imaging
Jean-Philippe Thiran
EPFL
ObeSense
To combine innovative and non-invasive sensors into single monitoring systems integrated in smart textiles for the long-term monitoring of overweigh/obese patients
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Project Description

Obesity is a medical condition associated with multiple health problems. Multiple clinical guidelines about the identification, evaluation and treatment of overweight and obesity and its related risks already exist.  Importantly, these guidelines recommend the use of long-term monitoring systems that have not been adapted yet to the screening of large-scale populations to efficiently and simultaneously evaluate different physiological markers such as energy expenditure, hypertension, respiratory rate, stroke volume, heart rate and rhythm, etc. Indeed, physiological monitoring systems, if available, present multiple limitations, i.e. invasiveness, poor patient compliance, long-term skin intolerance, non-portable, limited power autonomy and memory, single-physiological marker oriented, sensitivity to motion artifacts, inaccurate estimates, etc. 

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Our researchers in the media

Notable publications

In vivo evaluation of a novel, wrist-mounted arterial pressure sensing device versus the traditional hand-held tonometer
Vardoulis, Orestis; Saponas, T. Scott; Morris, Dan; Villar, Nicolas; Smith, Greg; Patel, Shwetak; Tan, Desney
Medical Engineering & Physics

Single breath-hold 3D measurement of left atrial volume using compressed sensing cardiovascular magnetic resonance and a non-model-based reconstruction approach
Vardoulis, Orestis; Monney, Pierre; Bermano, Amit; Vaxman, Amir; Gotsman, Craig; Schwitter, Janine; Stuber, Matthias; Stergiopulos, Nikolaos; Schwitter, Juerg
Journal Of Cardiovascular Magnetic Resonance

First in vivo application and evaluation of a novel method for non-invasive estimation of cardiac output
Papaioannou, Theodore G.; Soulis, Dimitrios; Vardoulis, Orestis; Protogerou, Athanase; Sfikakis, Petros P.; Stergiopulos, Nikolaos; Stefanadis, Christodoulos
Medical Engineering & Physics

Validation of Algorithms for the Estimation of Pulse Transit Time: Where do We Stand Today?
Papaioannou, Theodoros G.; Vardoulis, Orestis; Stergiopulos, Nikolaos
Annals Of Biomedical Engineering


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Posters from 2016


Estimating the Real-Time Respiratory Rate from the ECG with a Bank of Notch Filters
Leila Mirmohamadsadeghi, Jean-Marc Vesin

Tissue oximetry in presence of pathologically thick fat and adipose tissue layers
Stefan Kleiser, Nassim Nasseri, Daniel Ostojic, Martin Wolf

Innovative Approaches for Baroreflex Sensitivity Measurements
Sasan Yazdani, Jean-Marc Vesin

Stroke Volume Monitoring via Electrical Impedance Tomography (EIT)
Fabian Braun, Martin Proença, Josep Solà, Mathieu Lemay, Jean-Philippe Thiran

Posters from 2015


Energy Expenditure Estimation by Near-Infrared Spectroscopy
Stefan Kleiser, Nassim Nasseri, Daniel Ostojic, Martin Wolf

Hemodynamic Bio-Impedance Model for Cardiovascular Electrical Impedance Tomography (EIT)
Fabian Braun, Martin Proença, Michaël Rapin, Josep Solà, Mathieu Lemay, Jean-Philippe Thiran

The Respiratory Pattern as an Indicator of the Anaerobic Threshold
Leila Mirmohamadsadeghi, Jean-Marc Vesin, Mathieu Lemay, Olivier Dériaz

Real-Time Peak and Fiducial Points Extraction in Portable ECGs and PPGs
Sasan Yazdani, Jean-Marc Vesin

Posters from 2014


Adaptive mathematical morphology for QRS complex detection in ECG signals
Sasan Yazdani, Jean-Marc Vesin

Impact of heart motion on stroke volume estimation via electrical impedance tomography
Martin Proença, Fabian Braun, Michael Rapin, Josep Solà, Andy Adler, Bartlomiej Grychtol, Martin Bührer, Peter Krammer, Stephan Böhm, Mathieu Lemay, Jean-Philippe Thiran

Hemodynamic Monitoring Using Electrical Impedance Tomography (EIT)
Fabian Braun, Martin Proença, Michaël Rapin, Josep Solà, Mathieu Lemay, Jean-Philippe Thiran

Hardware / Software Optimizations for Efficient Embedded Digital Signal Processing in Wireless Body Sensor Nodes
Rubén Braojos, Giovanni Ansaloni, David Atienza


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Posters from 2013


Monitoring the Consequences of Obesity
M. Lemay, O. Deriaz, E. Pruvot, U. Mäder, L. Scherer, J.-M. Vesin, J. Solà, N. Stergiopulos, D. Atienza, Martin Wolf, J.-P. Thiran

    

Project Photos