Download or read book TECHNIQUES D IMAGERIE QUANTITATIVES written by ALEXANDRE.. BRESSON and published by . This book was released on 2000 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES TECHNIQUES DE MESURES OPTIQUES NON INTRUSIVES DEVELOPPEES DEPUIS PLUSIEURS DIZAINES D'ANNEES PERMETTENT LA MESURE DES PARAMETRES PHYSIQUES TELS QUE LA TEMPERATURE, LA CONCENTRATION DES ESPECES CHIMIQUES ET LA VITESSE. TOUS CES DIAGNOSTICS OPTIQUES, BIEN QUE TRES PERFORMANTS, SONT GENERALEMENT APPLIQUES EN MESURES PONCTUELLES. LE BUT DE LA THESE EST DE DEVELOPPER UNE OU PLUSIEURS TECHNIQUES D'IMAGERIE QUANTITATIVES ET INSTANTANEES DE TEMPERATURE ET DE CONCENTRATION. DEUX AXES D'ETUDES COMPLEMENTAIRES ONT ETE ABORDES AU COURS DE CE TRAVAIL. IL S'AGIT DE LA FLUORESCENCE INDUITE PAR LASER SUR LE RADICAL OH POUR L'ETUDE DES MILIEUX EN COMBUSTION ET DE LA FLUORESCENCE INDUITE PAR LASER D'UN TRACEUR MOLECULAIRE (ACETONE) POUR L'ETUDE DES ECOULEMENTS NON REACTIFS. CES DEUX AXES D'ETUDE ONT ETE MENES EN PARALLELE AVEC LA MEME APPROCHE : APRES COMPILATION DES DONNEES BIBLIOGRAPHIQUES, DES MODELES DE FLUORESCENCE INDUITE PAR LASER DE CES DEUX ESPECES ONT ETE DEVELOPPES. LES RESULTATS DE CES MODELISATIONS ONT SERVI A SELECTIONNER LES MEILLEURES STRATEGIES EXPERIMENTALES. DES EXPERIENCES PILOTES ONT ETE MISES EN PLACE EN VUE DEVELOPPER CES TECHNIQUES D'IMAGERIE. ELLES CONSISTENT EN L'UTILISATION DES MODELES PROPOSES POUR LES DEUX TRACEURS ETUDIES AFIN D'OBTENIR DES IMAGES INSTANTANEES ET COUPLEES DE TEMPERATURE ET DE CONCENTRATION DANS DIFFERENTS TYPES D'ECOULEMENTS (COMBUSTION HYDROGENE-AIR, MELANGE DE JETS,). D'AUTRES APPLICATIONS ONT ETE REALISEES SUR DES BANCS D'ESSAIS A CARACTERE SEMI-INDUSTRIEL AFIN DE CARACTERISER L'UTILISATION DE CES TECHNIQUES DANS DES CONDITIONS DE MESURES SEVERES. LES RESULTATS OBTENUS AU COURS DE CES DIFFERENTES EXPERIENCES MONTRENT QUE L'OUTIL D'IMAGERIE QUANTITATIVE ET INSTANTANEE DEVELOPPE EST OPERATIONNEL
Download or read book Trait d imagerie m dicale Volume 1 2e d written by NAHUM Henri and published by Lavoisier. This book was released on 2013-12-12 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exhaustive et très richement illustrée, cette deuxième édition entièrement en couleur aborde de manière toujours claire et précise les méthodes et les résultats de l’imagerie de l’ensemble du corps humain. Chaque section présente de façon systématique : Les différentes techniques d’imagerie disponibles, des plus classiques au plus innovantes. Les principales stratégies diagnostiques pour toutes les pathologies de la région explorée. L’ensemble des chapitres a été actualisé et les chapitres de neurocardiologie et d'imagerie cardiovasculaire ont été totalement réécrits pour tenir compte des nouveaux apports de l’imagerie et des plus récents développements technologiques.
Download or read book Les fondamentaux de l imagerie m dicale written by Collège médical français des professeurs and published by Elsevier Health Sciences. This book was released on 2022-10-18 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage transversal du programme de DFGSM 2-3 (diplôme de formation générale en sciences médicales) développe tout au long des 31 chapitres l'ensemble des connaissances fondamentales et des bases techniques de l'imagerie, de la radioanatomie et de la séméiologie élémentaire en imagerie. Ouvrage de référence, en couleurs, il regroupe les notions essentielles qui doivent être connues des étudiants de médecine au terme de ce premier cycle d'études. Cette 2e édition procède à un remaniement complet des chapitres sur l'IRM et sur la reconstruction de l'image. Elle approfondit également le chapitre sur la demande et le compte-rendu des examens d'imagerie, pour répondre aux nouvelles modalités des ECOS (Examens Cliniques Objectifs et Structurés), ou évaluation des compétences, mises en place pour les examens du 2e cycle. Près de 400 illustrations (schémas et clichés d'imagerie) viennent éclairer le texte rédigé avec clarté et concision. L'ensemble de ces illustrations est proposé sur une banque d'images consultable en ligne. Le cours est complété par une rubrique Entraînement proposant une série de QCM pour chaque chapitre. Ces QCM, corrigés en fin d'ouvrage, ont été renouvelés et augmentés pour cette nouvelle édition.
Download or read book Bone Quantitative Ultrasound written by Pascal Laugier and published by Springer Nature. This book was released on 2022-05-05 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many significant achievements in new ultrasound technologies to measure bone and models to elucidate the interaction and the propagation of ultrasonic waves in complex bone structures have been reported over the past ten years. Impaired bone remodeling affects not only the trabecular compartment but also the cortical one. Despite the crucial contribution of the cortical structure to the whole bone mechanical competence, cortical bone was understudied for a long time. A paradigm shift occurred around 2010, with a special focus placed on the importance of cortical bone. This has sparkled a great deal of interest in new ultrasound techniques to assess cortical bone. While our book ‘Bone Quantitative Ultrasound’ published in 2011 emphasized techniques to measure trabecular bone, this new book is devoted for a large part to the technologies introduced recently to measure cortical bone. These include resonant ultrasound spectroscopy, guided waves, scattering, and pulse-echo and tomography imaging techniques. Instrumentation, signal processing techniques and models used are detailed. Importantly, the data accumulated in recent years such as anisotropic stiffness, elastic engineering moduli, compression and shear wave speeds of cortical bones from various skeletal sites are presented comprehensively. A few chapters deal with the recent developments achieved in quantitative ultrasound of trabecular bone. These include (i) scattering-based approaches and their application to measure skeletal sites such as the spine and proximal femur and (ii) approaches exploiting the poro-elastic nature of bone. While bone fragility and osteoporosis are still the main motivation for developing bone QUS, this Book also includes chapters reporting ultrasound techniques developed for other applications of high interest such as 3-D imaging of the spine, assessment of implant stability and transcranial brain imaging. This book, together with the book ‘Bone Quantitative Ultrasound’ published in 2011 will provide a comprehensive overview of the methods and principles used in bone quantitative ultrasound and will be a benchmark for all novice or experienced researchers in the field. The book will offer recent experimental results and theoretical concepts developed so far and would be intended for researchers, graduate or undergraduate students, engineers, and clinicians who are involved in the field. The book should be considered as a complement to the first book publisher in 2011, rather than a second edition, in the sense that basic notions already presented in the first book are not repeated.
Download or read book Outils de simulation et de quantification en imagerie de contraste chographique written by Nicolas Georges Rognin and published by . This book was released on 2002 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depuis l'avènement des premiers échographes, une volonté constante des constructeurs est l'amélioration de la qualité de l'image par des méthodes de traitement du signal et par des avancées dans la technologie des sondes. Ces améliorations ont pour but d'accroître la puissance diagnostique de cette modalité d'imagerie médicale. Aujourd'hui, s'ajoutent les agents de contraste ultrasonore pour le rehaussement du contraste du sang par rapport aux tissus. Les agents de contraste sont composés de microbulles, qui ont un fort pouvoir de rétrodiffusion. L'injection par voie intraveineuse de ces agents a conduit au développement d'une myriade de modalités d'imagerie pour estimer la perfusion d'un organe, l'ensemble étant désigné par " imagerie de contraste ". Pourtant aucun outil pour l'étude de leurs performances n'existe. Pour répondre à cette problématique, nous avons développé un simulateur d'imagerie quantitative de contraste. Nous entendons par quantitatif une simulation en unité physique. Autrement dit les signaux ultrasonores sont calculés directement en pascal aussi bien pour la réponse du tissu biologique que celle de l'agent. Pour atteindre cet objectif et en collaboration avec un groupe pharmaceutique international, Bracco, nous avons constitué une base de données expérimentales de mesures in vitro de l'agent SonoVueTM pour la validation du simulateur. Cette base couvre plusieurs cas de puissance d'émission pour une série de dilutions de l'agent. En conclusion, notre contribution est la proposition d'un outil permettant de simuler quantitativement différentes modalités d'imageries de contraste, en fonction de la puissance d'émission, de la dilution, et du mouvement tissulaire. Le système permet de surcroît de comparer et d'apprécier les performances de ces différentes modalités. Enfin, nous avons montré la flexibilité et la potentialité de cet outil en l'appliquant au cas particulier de l'échographie endovasculaire.
Download or read book Les troubles anxieux written by BOULENGER Jean-Philippe and published by Lavoisier. This book was released on 2014-04-04 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Depuis les premières descriptions cliniques datant de la fin du XIXe siècle, montrant l’intérêt médical relativement récent pour l’anxiété, les symptômes anxieux et les troubles anxieux, les concepts ont considérablement évolué au cours du XXe siècle pour aboutir aux classifications syndromiques en vigueur dans la nosographie actuelle. Pourtant, un certain nombre de questions demeurent, par exemple sur l’existence d’un continuum entre une anxiété normale et adaptative et une anxiété pathologique, la nature de la réactivité émotionnelle dans les troubles anxieux par rapport à celle décrite dans les troubles bipolaires, etc... La première partie d’ouvrage présente les diverses approches actuelles pour comprendre les troubles anxieux : modèles émotionnels, approche évolutionniste, psychodynamique, théorie de l’attachement, génétique, neurobiologie, neuropsychologie, électrophysiologie et neuro-imagerie. Sont ensuite exposés les différents troubles anxieux (attaque de panique, phobie sociale, trouble anxieux généralisé, hypocondrie, état de stress post-traumatique, TOC, etc.) et les associations co-morbides (dépression, conduites suicidaires, troubles bipolaires, addictions, etc...). Réunissant plus d’une quarantaine de spécialistes reconnus, riche d’une trentaine tableaux et schémas explicatifs et d’un index détaillé, cet ouvrage offre un état des connaissances et des recherches sur les troubles anxieux. Jean-Pierre Lépine, Professeur des Universités, Praticien hospitalier, service de Psychiatrie Adultes, hôpital Lariboisière, Paris. Jean-Philippe Boulenger, Professeur des Universités, Praticien hospitalier, service de Psychiatrie Adultes, CHU, Montpellier.
Download or read book Techniques d analyse par imagerie written by and published by . This book was released on 2012 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Statistics and Topography in Quantitative EEG written by D. Samson-Dollfus and published by . This book was released on 1988 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory Of Quantitative Magnetic Resonance Imaging written by Hernan J Jara and published by World Scientific Publishing Company. This book was released on 2013-04-04 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: qMRI is a rapidly evolving scientific field of high current interest because it has the potential of radically changing the clinical and research practices of magnetic resonance imaging (MRI). This focuses solely on the theoretical aspects of qMRI, which are treated and analyzed at three different spatial scales, specifically: i) the quantum physics scale of individual spins; ii) the semi-classical physics scale of spin packets; and iii) the imaging scale of voxels. Topics are presented paying particular attention to theoretical unification and mathematical uniformity.
Download or read book Quantitative Methods in Neuroscience written by Stephen M Evans and published by Oxford University Press. This book was released on 2004-07-08 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Stereology is a valuable tool for neuroscientists, allowing them to obtain 3-Dimensional information from 2-Dimensional measurements made on appropriately sampled sections (usually obtained from histological sections or MRI/CT/PET scans). This 3-D information is invaluable in correlating structural/functional relationships in the pursuit of far greater understanding of the function of the central nervous system. However, in carrying out such measurements, often based on limited data sets, there is a risk of experimenter bias. An important feature of modern design based stereology is to be aware of potential sources of bias and eliminate them during the data collection. With many of the major neuroscience journals now insisting that quantitative data be presented, there is a greater need than ever for neuroscientists to understand the theory and practice behind quantitative methods, such as those offered by stereology. Quantitative Methods in Neuroscience is a cookbook of stereological methods written especially for neuroscientists. It provides clear and accessible advice about when and when not to use stereology. Throughout the book, the emphasis is on practical guidance, rather than discussions and formulae. Written by leading scientists in the field of stereology, with a Foreword by D.C. Sterio, the book will be a valuable introduction to these methods for neuroscientists, and all those involved in development of new drug programmes.
Download or read book EVALUATION DES TECHNIQUES D IMAGERIE MEDICALE written by Jean-Claude Liehn and published by . This book was released on 1985 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultra Wideband Short Pulse Electromagnetics 10 written by Frank Sabath and published by Springer Science & Business Media. This book was released on 2014-02-07 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents contributions of deep technical content and high scientific quality in the areas of electromagnetic theory, scattering, UWB antennas, UWB systems, ground penetrating radar (GPR), UWB communications, pulsed-power generation, time-domain computational electromagnetics, UWB compatibility, target detection and discrimination, propagation through dispersive media, and wavelet and multi-resolution techniques. Ultra-wideband (UWB), short-pulse (SP) electromagnetics are now being used for an increasingly wide variety of applications, including collision avoidance radar, concealed object detection, and communications. Notable progress in UWB and SP technologies has been achieved by investigations of their theoretical bases and improvements in solid-state manufacturing, computers, and digitizers. UWB radar systems are also being used for mine clearing, oil pipeline inspections, archeology, geology, and electronic effects testing. Like previous books in this series, Ultra-Wideband Short-Pulse Electromagnetics 10 serves as an essential reference for scientists and engineers working in these applications areas.
Download or read book Vocabulaire de s miologie de l appareil locomoteur written by Germain Beauregard and published by Secrétariat d'État du Canada = Department of the Secretary of State of Canada. This book was released on 1992 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This vocabulary is the second of four on the musculoskeletal system. It is compiled from recommended works and deals mainly with radiological aspects. It also includes fractures and diseases, imaging techniques, roentgenographic positions, angles, lines, and indexes. About 500 concepts are listed in English and French with each entry including the main entry term, synonym(s), textual support, and notes.
Download or read book Traitement de l image written by Olivier Hélénon and published by Elsevier Masson. This book was released on 2013-04-19 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: La pratique radiologique a connu un bouleversement sans précédent depuis l'arrivée du numérique et le quasi-abandon de la radiologie sur film. Pour la première fois, un livre expose les problématiques actuelles de l'image médicale, de sa formation à son stockage. Cet ouvrage propose une étude approfondie : - du processus de numérisation ; - des systèmes d'imagerie médicale ; - du filtrage ; - de la reconstruction tomographique en 2D et en 3D ; - du standard DICOM (concepts de base, documents complexes, sécurité...) ; - de l'archivage ; - de l'intégration dans les systèmes de gestion de dossier patient. Chaque chapitre est doté d'une fiche d'autoévaluation dont les réponses sont placées en fin d'ouvrage. Ce livre propose un panorama complet de l'image médicale, un outil de formation pour l'ensemble des professionnels (radiologues, manipulateurs en radiologie, ingénieurs...), ainsi que pour toute personne s'intéressant à l'imagerie médicale d'un point de vue technique.
Download or read book Mechanobiology written by J. F. Stoltz and published by IOS Press. This book was released on 2006 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over recent years, there has been increasing interest in the fundamental role played by local mechanical parameters in chondrocyte regulation and cartilage dysfunction as a first step in the development of osteoarthritis. This is how the idea of mechanobiology and the concept of mechanotransduction were born in the 90's. Indeed, a broad diversity of physiological phenomena is induced by mechanical stimuli (hearing, orientation to gravity, touch, tissue remodeling...) but the mechanism by which mechanical forces may regulate a physiological response is still unknown. In other respects, the concept of regenerative medicine has recently developed in parallel to this. Regenerative medicine is an emerging multidisciplinary field involving medicine, biology, chemistry, mechanics and engineering that is likely to revolutionize the ways we improve the health and quality of life by restoring, maintaining or enhancing tissue and organ functions. Indeed, human tissues do not regenerate spontaneously and healing is only a stopgap that may be associated with contraction which in turn may prevent regeneration. interesting alternative. Today, the in vitro preparation of biological tissues such as cartilage, bone, tendon, vessel, heart muscle, skin, brings out major expectations for the next decade. However, to each type of tissue correspond a large number of potential methods related to the support, the cells used (tissular cells or stem cells) and to the conditions of the environment (culture medium and mechanical forces). The aim of this publication is to provide a thoughtful and balanced view on new crucial concepts with clinical implications.
Download or read book Non Invasive Diagnostic Techniques in Clinical Dermatology written by Enzo Berardesca and published by Springer Science & Business Media. This book was released on 2013-12-02 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive but compact guide to the latest technical and technological developments in the growing field of non invasive diagnosis in clinical dermatology. Information is provided on the practical and technical characteristics of a wide range of equipment and methods for in vivo measurements that aid in the investigation of skin function, the evaluation of topically applied products and the monitoring of skin disease. Individual sections are devoted to imaging techniques, skin analysis, superficial skin analysis, skin mechanics, water and stratum corneum hydration and erythema and blood flow. All of the authors are experts in the field, with detailed knowledge of the techniques they describe. Non Invasive Diagnostic Techniques in Clinical Dermatology will be of value for all dermatologists, whether they are engaged in delivering patient care or in research programs, for cosmetic scientists and for biologists involved in skin research and product assessment.
