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This paper provides a methodological framework for decision making process to ensure its traceability generally in the context of telemedicine and particularly in the act of teleexpertise. This act permits to medical professionals and/or health professionals to collaborate in order to take suitable decisions for a patient diagnosis or treatment. The main problem dealing with teleexpertise is the following:...
Sulfonamide nanoparticles were prepared by reacting benzenesulfonyl chloride with amine groups present in acetonitrile solvent. Ultrasonic treatment was applied for preparation of the sulfonamide nanoparticles. The produced sulfonamide nanoparticles were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and other techniques...
Denoising is an important preprocessing stage in some ElectroEncephaloGraphy (EEG) applications. For this purpose, Blind Source Separation (BSS) methods, such as Independent Component Analysis (ICA) and Decorrelated and Colored Component Analysis (DCCA), are commonly used. Although ICA and DCCA-based methods are powerful tools to extract sources of interest, the procedure of eliminating the effect...
Purpose: Nowadays, many focal therapies use Magnetic Resonance (MR) imaging for treatment planning purpose. In this context, geometric distortions should be as low as possible. In this paper, we present a new device to assess image distortions in MRI.Methods: The phantom consists of a stack of plates made of Polymethyl Methacrylate (PMMA). The detection elements are balls forming MRI capsules and...
To treat coronary stenosis, balloon expandable stents can be used. To maximize X-ray absorption, the stent is issued with a marker which enhances its recognition while using X-ray and assists to better positioning of the stent in the required vessel segment.Objectives: The aim of this research was to improve the cardiovascular stents' X-ray visibility using a unique marker placed in the stent strut...
Currently, computational tools and analyses play an essential role in medical diagnosis including epilepsy. One of the most important applications in epilepsy is epileptic seizure classification and detection. In this study, the characteristics of spectral exponent γ obtained from the wavelet-based approach are examined. From the computational results, it is evidenced that the higher and lower frequency...
Objectives: Increasing fibrosis of skeletal muscle is a hallmark of the dystrophic process in Duchenne muscular dystrophy (DMD) and is a hindrance to functional muscle regeneration. We sought to evaluate the capacity of magnetic resonance elastography (MRE) to characterize the elastic properties of the vastus medialis (VM) muscle as well as that of its adjacent subcutaneous tissue in relaxed and exercised...
Heart rate variability (HRV) reflects the autonomic nervous system activity on the organism. Sympathetic and parasympathetic influences in response to painful or stressful stimulus can be measured by the variations of RR intervals. After the elaboration of an automated index evaluating parasympathetic tone in adults (Analgesia Nociception Index, ANI), we choose to adapt this technology to neonates...
Sudden death in ambulatory is a major public health issue: only few survivors, severe brain damage, high socio-economic cost. To improve survival and neurological recovery of these patients, an early therapeutic moderate hypothermia could be promising, as strongly suggested by previous preclinical studies on small animals through hypothermic total liquid ventilation (TLV) with perfluorocarbons (PFC)...
Our studies focus on dedicated dosimetry systems based on the Gallium Nitride (GaN) probe for Quality Assurance and patient safety in radiotherapy, brachytherapy and interventional radiology. The small size GaN transducer in the probe has high radioluminescence (RL) yield and rapid RL signal response for real time measurements. Preliminary prototypes of dedicated systems were tested in clinical conditions...
Although radiofrequency ablation has become a worldwide accepted curative therapy for the treatment of cardiac arrhythmias, there is still a lack of lesion monitoring during ablation procedure. Magnetic Resonance (MR) thermometry based on the water proton frequency could give relevant information on local tissue temperature increase but requires dealing with motion and susceptibility artifacts due...
Objectives: An important barrier to electronic healthcare information exchanges (HIE) is the lack of interoperability between information systems especially on the semantic level. In the scope of the ANR (Agence Nationale pour la Recherche)/TeRSan (Terminology and Data Elements Repositories for Healthcare Interoperability) project, we propose to set and use a semantic interoperability platform, based...
The early diagnosis of liver diseases and/or the identification of any focal lesions are the key issues in considering a favorable prognosis. These objectives require non-invasive dedicated diagnostic tools and justify the development of innovative techniques. The BBMUT project aims to exploit the properties of a new technology of ultrasound probes, called CMUT to propose new techniques for imaging...
1) ObjectivesThe SUPPLIVER project aims at developing a liver supply system based on cell encapsulation in alginate beads.2) Material and methodsAfter hepatic cells and alginate were mixed, beads were produced by an extrusion method that made the droplets fall in a gelation bath. A bioreactor was designed to host the beads under a fluidized bed perfusion regimen. The biological components were inserted...
The aim of this project is to design a generic formalism for parietal and regional tracking of the left ventricle (LV) and to adapt it to 3D+t cardiac imaging modalities used in clinical routine (echocardiography, gated-SPECT, cine-MRI). The estimated displacement field must be reliable enough and insensitive to various artifacts to assess regional myocardial function in 3D from the accurate and precise...
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