A5044126748- Ultrasound Imaging and Elastography
- Elasticity and Material Modeling
- Ultrasound and Hyperthermia Applications
- Muscle Physiology and Disorders
- Liver Disease Diagnosis and Treatment
- Electrical and Bioimpedance Tomography
- Tendon Structure and Treatment
- Muscle activation and electromyography studies
- TGF-β signaling in diseases
- Bone health and osteoporosis research
- Infrared Thermography in Medicine
- Body Composition Measurement Techniques
- Ultrasonics and Acoustic Wave Propagation
- Kruppel-like factors research
- Myofascial pain diagnosis and treatment
- Orthopaedic implants and arthroplasty
- Cellular Mechanics and Interactions
- Facial Nerve Paralysis Treatment and Research
- Shoulder Injury and Treatment
- Lower Extremity Biomechanics and Pathologies
- Advanced MRI Techniques and Applications
- Bone Metabolism and Diseases
- Neurogenetic and Muscular Disorders Research
- Diabetic Foot Ulcer Assessment and Management
- Temporomandibular Joint Disorders
Centre National de la Recherche Scientifique
2013-2025
Biomécanique et Bioingénierie
2015-2024
Université de Technologie de Compiègne
2015-2024
Sorbonne Université
2015-2023
St. Raphael's Hospital
2022
Universität Hamburg
2022
German Sport University Cologne
2022
University of Klagenfurt
2022
Kharkiv National Medical University
2022
Laboratoire Roberval
2015
Changes in the mechanical properties (i.e., stiffness) of soft tissues have been linked to musculoskeletal disorders, pain conditions, and cancer biology, leading a rising demand for diagnostic methods. Despite general availability different stiffness measurement tools, it is unclear as which are best suited tissue types related depths. The study aimed compare tools' (SMT) reliability on multi-layered phantom model (MPTM). A polyurethane MPTM simulated four layers thoracolumbar region: cutis...
Abstract Purpose To measure the elastic properties of vastus lateralis (VL), medialis (VM), and sartorius (Sr) muscles using magnetic resonance elastography (MRE). Materials Methods obtain a normative database aforementioned muscles, oblique scan directions were prescribed passing through each muscle. Shear waves induced into pneumatic mechanical drivers at 90 120 Hz, respectively. These attached to distal end right thigh with knee flexed 30°. The foot was placed in footplate containing...
Abstract Purpose To measure the stiffness of vastus medialis (VM) in hyperthyroid patients before and after treatment. Materials Methods A total five healthy euthyroid were tested using magnetic resonance elastography (MRE), which involves induction shear waves thigh muscles a pneumatic driver at 90 Hz. Results Among pretreatment cohort lower was found when muscle relaxed (2.11 ± 0.61 kPa) compared following treatment hyperthyroidism (5.52 1.52 kPa), accompanied by an improvement contractile...
Abstract Purpose To cross‐validate the magnetic resonance elastography (MRE) technique with a clinical device, based on an ultrasound elastometry system called Fibroscan. Materials and Methods Ten healthy subjects underwent MRE Fibroscan test. The used round pneumatic driver at 60 Hz to generate shear waves inside liver. An elastogram representing map of liver stiffness was generated allowing for measurement average region interest. probe (3.5 MHz) composed vibrator that sent low‐frequency...
: Tobacco-related pathologies are the most preventable diseases. The purpose is to provide personalized cartography of smoker lung stiffness using non-irradiating imaging modalities, MRI and MRE (magnetic resonance imaging/elastography). Thirty-four smokers were divided into five groups distributed with a range pack-years (PY) 10. All patients underwent three tests (CT: computed tomography, MRI, MRE) make possible measurements density, two modalities (CT, MR), stiffness. CT density was...
Background Due to the lack of cutoff values validated for specific liver diseases, purpose this study was set up magnetic resonance elastography ( MRE ) asymptomatic fibrosis in alcoholic patients. Methods Ninety patients underwent 3 clinical exams. The stiffness measured locally with F ibroscan, and globally through cartographies shear modulus generated . ibroscan method chosen as gold standard classify fibrosis. score also obtained ibrometer A , diagnostic performance methods analyzed...
Background Pathologies of the muscles can manifest different physiological and functional changes. To adapt treatment, it is necessary to characterize elastic property (shear modulus) single muscles. Previous studies have used magnetic resonance elastography (MRE), a technique based on MRI technology, analyze mechanical behavior healthy pathological The purpose this study was develop protocols using MRE determine shear modulus nine thigh at rest. Methods Twenty-nine volunteers (mean age = 26...
Abstract Purpose To demonstrate the feasibility of 1D MR elastography (MRE) to rapidly assess skeletal muscle stiffness in vivo. Materials and Methods Shear waves were induced vastus medialis (VM) using a pneumatic driver at 90 Hz 2D MRE data collected. Spatially selective excitations used produce projections oriented along direction propagating muscle. Data collected with thigh muscles relaxed contracted 20% maximum voluntary contraction (MVC) knee flexed 30°. Results The measured rest was...
To measure the viscoelastic properties of passive thigh muscles using multifrequency magnetic resonance elastography (MMRE) and rheological models.Four in five volunteers underwent MMRE tests set up inside a 1.5T imaging (MRI) scanner. Compression excitation was generated with driver attached around thigh, waves were at 70, 90, 110 Hz. In vivo experimental parameters (G(ω) = G' + i G″) extracted from wavelength attenuation measurements along local profile direction wave's displacement. The...
Purpose To analyze the relevance of viscosity measurement as a liver diagnostic marker. Materials and Methods determine level fibrosis, Fibroscan test was performed on 40 subjects (10 healthy volunteers 30 patients). Subsequently, multifrequency magnetic resonance elastography (MMRE) tests were made with pneumatic driver at 60, 70, 80 Hz. Phase images analyzed two different postprocessing methods, without (Method 1) 2) inversion algorithm (IA), using rheological models (Voigt, springpot) in...