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Concept

Oxymétrie colorimétrique

Publications associées (29)

Signal Processing Approaches for Cardio-Respiratory Biosignals with an Emphasis on Mobile Health Applications

Leila Mirmohamadsadeghi

We humans are constantly preoccupied with our health and physiological status. From precise measurements such as the 12-lead electrocardiograms recorded in hospitals, we have moved on to mobile acquisition devices, now as versatile as smart-watches and sma ...

EPFL2017

Hyperpolarized 6Li as a probe for hemoglobin oxygenation level

Rolf Gruetter, Arnaud Comment, Mor-Miri Mishkovsky, Ruud van Heeswijk, Riccardo Balzan

Hyperpolarization by dissolution dynamic nuclear polarization (DNP) is a versatile technique to dramatically enhance the nuclear magnetic resonance (NMR) signal intensity of insensitive long-T1 nuclear spins such as 6 Li. The 6 Li longitudinal relaxation o ...

Wiley-Blackwell2016

Metabolic and functional changes in retinitis pigmentosa: comparing retinal vessel oximetry to full-field electroretinography, electrooculogram and multifocal electroretinography

PurposeTo determine a relationship between the retinal vessel saturation alterations and the residual retinal function measured by means of full-field electroretinography (full-field ERG), electrooculogram (EOG) and multifocal electroretinography (mfERG) i ...

Wiley-Blackwell2016

Wearable, multi-parametric wireless system-in-patch for hydration level monitoring

Mihai Adrian Ionescu, Hoël Maxime Guérin

Wearable system based on an in-situ four-probe impedance measurement at different signal frequencies for the topical monitoring of at least one physiological parameter reflecting the hydration status such as skin conductivity, ion concentration in sweat or ...

2016

Angiostatic treatment prior to chemo- or photodynamic therapy improves anti-tumor efficacy

Paul Joseph Dyson, Patrycja Nowak-Sliwinska, Andrea Brett Gasser, Débora Bonvin

Tumor vasculature is known to be poorly organized leading to increased leakage of molecules to the extravascular space. This process can potentially increase interstitial fluid pressure impairing intra-tumoral blood flow and oxygen supply, and can affect d ...

Nature Publishing Group2015

Modeling of Long-Term Multipactor Evolution in Microwave Components Including Dielectric Layers

Apostolos Sounas

Multipactor is a resonant vacuum discharge occurring in microwave components of satellite systems as well as in particle accelerators. Due to its undesirable effects, multipactor analysis constitutes a mandatory step in the design of modern satellite compo ...

EPFL2015

Facial Image Analysis for Fully-Automatic Prediction of Difficult Endotracheal Intubation

Jean-Philippe Thiran, Matteo Sorci, Anil Yuce, Hua Gao, Gabriel Louis Cuendet

Goal: Difficult tracheal intubation is a major cause of anesthesia related injuries with potential life threatening complications. Detection and anticipation of difficult airway in the preoperative period is thus crucial for the patients’ safety. We propos ...

Institute of Electrical and Electronics Engineers2015

Retinal vessel oxygen saturation and its correlation with structural changes in retinitis pigmentosa

Purpose: To study the influence of retinal structural changes on oxygen saturation in retinitis pigmentosa (RP) patients. Methods: Oximetry measurements were performed on 21 eyes of 11 RP patients and compared to 24 eyes of 12 controls. Retinal oxygen satu ...

Wiley-Blackwell2014

In vivo measurement of tissue oxygenation by time-resolved luminescence spectroscopy: advantageous properties of dichlorotris(1, 10-phenanthroline)-ruthenium(II) hydrate

Hubert van den Bergh, Georges Wagnières, Patrycja Nowak-Sliwinska, Matthieu Philippe Emmanuel Zellweger, Veronika Huntosova, Sandrine Gay

Measuring tissue oxygenation in vivo is of interest in fundamental biological as well as medical applications. One minimally invasive approach to assess the oxygen partial pressure in tissue (pO(2)) is to measure the oxygen-dependent luminescence lifetime ...

SPIE Society of Photo-optical Instrumentation Engineers2014