A5027228367- Radiation Detection and Scintillator Technologies
- Radiation Therapy and Dosimetry
- Medical Imaging Techniques and Applications
- Orthodontics and Dentofacial Orthopedics
- Nuclear Physics and Applications
- dental development and anomalies
- Advanced Radiotherapy Techniques
- Diamond and Carbon-based Materials Research
- Cleft Lip and Palate Research
- Temporomandibular Joint Disorders
- Particle Detector Development and Performance
- Advanced X-ray and CT Imaging
- Radiation Effects in Electronics
- Digital Radiography and Breast Imaging
- CCD and CMOS Imaging Sensors
- Dental Implant Techniques and Outcomes
- Quantum Chromodynamics and Particle Interactions
- Ion-surface interactions and analysis
- Particle physics theoretical and experimental studies
- Tactile and Sensory Interactions
- Linguistics and Discourse Analysis
- Augmented Reality Applications
- Cholangiocarcinoma and Gallbladder Cancer Studies
- High-Energy Particle Collisions Research
- Dental Trauma and Treatments
Mercatorum University
2024
Institute of Nuclear Physics of Lyon
2016-2021
Institut de Physique des 2 Infinis de Lyon
2019-2021
Université Claude Bernard Lyon 1
2017-2019
Centre National de la Recherche Scientifique
2018-2019
Institut National de Physique Nucléaire et de Physique des Particules
2019
Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes, Mécanique et Energétique
2017
University of Insubria
2014-2015
Single photon emission computed tomography (SPECT) is at present one of the major techniques for non-invasive diagnostics in nuclear medicine. The clinical routine mostly based on collimated cameras, originally proposed by Hal Anger. Due to presence mechanical collimation, detection efficiency and energy acceptance are limited fixed system's geometrical features. In order overcome these limitations, application Compton cameras SPECT has been investigated several years. this study we compare...
To describe the molar movements and skeletal changes associated with Pendulum-fixed appliance treatment long-term postretention period.The sample consisted of 76 Class II patients, 35 males 41 females. Lateral cephalograms were obtained at start (T1); end distalization (T2); orthodontic fixed therapy (T3); observation (7 years 2 months later; T4). Mean age was 12 11 T1, 13 8 T2, 15 4 T3, 22 5 T4. The average amount relationship 3.1 mm, a mean overjet 5.9 mm beginning treatment. A paired...
As more and particle therapy centers are being built world-wide, there is increasing need in treatment monitoring methods, ideally real time. This article investigates the clinical applicability of a Compton camera design by means Monte Carlo simulations. The performance has been studied with simulation point-like source beam irradiation polymethyl methacrylate (PMMA) phantom. system absolute photon detection efficiency, measured via irradiation, varies range [1, 4] ×10 <sup...
To compare dentoalveolar and skeletal changes produced by the pendulum appliance (PA) distal screw (DS) in Class II patients.Forty-three patients (19 men, 24 women) with malocclusion were retrospectively selected for study. Twenty-four (mean age, 12.2 ± 1.5 years) treated PA, 19 11.3 1.9 DS. The mean distalization time was 7 months PA group 9 DS group. Lateral cephalograms obtained at T1, before treatment, T2, end of distalization. A Mann-Whitney U test used statistical comparisons two...
To compare two distalizing devices supported by palatal miniscrews, the MGBM System (MGBM) and Distal Screw appliance (DS), in dental Class II patients.Pretreatment (T1) postdistalization (T2) lateral cephalograms of 53 malocclusion subjects were examined. consisted 29 patients (16 males, 13 females) with a mean pretreatment age 12.3 ± 1.5 years; DS 24 (11 11.3 1.2 years. The distalization time was 6 2 months for 9 DS. Initial final measurements treatment changes compared means Student's...
Compton cameras are gamma-ray imaging systems which have been proposed for a wide variety of applications such as medical imaging, nuclear decommissioning or homeland security. In the design and optimization system Monte Carlo simulations play an essential role. this work, we propose generic module to perform analyses Camera is included in open-source GATE/Geant4 platform. Several digitization stages implemented within mimic performance most commonly employed detectors (e.g. monolithic...
Abstract Background There are controversial opinions about the effect of erupted second molars on distalization first molars. Most distalizing devices anchored molars, without including molars; so, differences between sequentially distalize maxillary (second molar followed by molar) or and together not clear. The aim study was to compare sequential versus simultaneous therapy with using two different modified Pendulum appliances fixed appliances. Methods treatment sample consisted 35 class...
The MoniDiam project is part of the French national collaboration CLaRyS (Contrôle en Ligne de l’hAdronthérapie par RaYonnements Secondaires) for on-line monitoring hadron therapy. It relies on imaging nuclear reaction products that related to ion range. goal here provide large area beam detectors with a high detection efficiency carbon or proton beams giving time and position measurement at 100 MHz count rates (beam tagging hodoscope). High radiation hardness intrinsic electronic properties...
Structured Abstract Objectives To evaluate dento‐skeletal changes following conventional anchorage molar distalization therapy in adult patients. Setting and sample population Thirty‐three patients (25 women, mean age 23 years 1 months ± 3 months; 8 men, 28 7 months) were recruited from 4 Board Certified specialists. All subjects underwent using intra‐oral distalizing appliances. Subjects methods Cephalometric headfilms available for all before (T1) at the end of comprehensive treatment...
The French national collaboration CLaRyS aims at the on-line monitoring of hadron therapy by means imaging nuclear reaction products that are related to ion range. For this purpose, MoniDiam project is dedicated development a large area detector with high detection efficiency for primary carbon or proton beams, giving time and position measurements count rates greater than 100 MHz. High radiation hardness intrinsic electronic properties make diamonds reliable very fast detectors good signal...
Online ion range monitoring in hadron therapy can be performed via detection of secondary radiation, such as promptγ-rays, emitted during treatment. The promptγemission profile is correlated with the depth-dose and reconstructed Compton imaging. line-cone reconstruction, using intersection between primary beam trajectory cone a camera, requires negligible computation time compared to iterative algorithms. A recent report hypothesised that flight (TOF) based discrimination could improve...
This case report describes the surgical-orthodontic guided-eruption of a deeply impacted macrodontic maxillary central incisor in 10-year-old patient with Alagille syndrome (ALGS). In first stage, orthodontic treatment fixed appliance on deciduous teeth allowed to create enough space for eruption right incisor. The second stage included closed surgical exposure and vertical traction. After tooth erupted proper position, accessory periodontal dental reshaping procedures may be indicated...
Single Photon Emission Computed Tomography (SPECT) is at present one of the major techniques for non-invasive diagnostics in nuclear medicine. Almost whole clinical routine based on collimated cameras, originally proposed by Anger. Due to presence mechanical collimation, detection efficiency and energy acceptance are limited thesystem geometrical features. In order overcome these limitations, application Compton cameras SPECT being investigated several years. A camera prototype under...
The CLaRyS collaboration focuses on the development of gamma detectors for medical applications, in particular what concerns range monitoring ion beam therapy. Part research program aims to implement two gamma-camera clinical prototypes, a multi-collimated camera and Compton camera. A common absorber detector has been designed based bismuth germanate (BGO) blocks, 3.5×3.8×3 cm3, assembled various geometrical configurations meet application requirements. surface each block is streaked matrix...
For ion-range monitoring in Hadrontherapy, we propose a high throughput data acquisition (DAQ) system to be associated with beam hodoscope perform spatial and temporal labeling. The DAQ can incorporate up eight dedicated readout boards parallel for adapting the resolution of scintillating-fiber hodoscope. It also includes μTCA board, reference clock board computer. coupled other detection systems such as Compton cameras, collimated cameras.