CHOIX DES COUPES SCANNER X POUR LA RECONSTRUCTION TRIDIMENSIONNELLE PDF Download
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Author: SANDRINE.. KERISIT BOURBON
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ISBN:
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Languages : fr
Pages :
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Author: SANDRINE.. KERISIT BOURBON
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Author: Li-min Luo
Publisher:
ISBN:
Category :
Languages : fr
Pages : 230
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LES ASPECTS METHODOLOGIQUES D'UNE RECONSTRUCTION TRIDIMENSIONNELLE DE STRUCTURES ANATOMIQUES : CONSTRUCTION DE LA BASE DE DONNEES 3D, REPRESENTETION DE LA SCENE, EXTRACTION DE LA SURFACE, VISUALISATION DES OBJETS
Author: Dominique Doyon
Publisher: Elsevier Masson
ISBN: 9782225857423
Category : Diagnostic imaging
Languages : fr
Pages : 402
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Book Description
Le scanner à rayons X ou tomodensitométrie constitue l'une des techniques d'imagerie les plus utilisées. Son domaine d'application, limité à l'origine au crâne et au cerveau, s'est étendu à l'ensemble des organes, analysant aussi bien le thorax, l'abdomen que les membres. En concurrence parfois avec l'IRM, il garde toute son actualité dans les urgences notamment traumatiques et certaines pathologies, d'autant que les récents perfectionnements permettent des acquisitions et des reconstructions ultrarapides en obtenant des images en relief (3D) ou planaires dans n'importe quel plan (2D). Les scanners à rotation continue ou hélicoïdale permettent aussi l'étude des vaisseaux (angio-scanner) ; quant à l'endoscopie virtuelle, elle va certainement transformer l'exploration des cavités de l'organisme (bronches, trachée, sinus et même vaisseaux... ). L'abondante iconographie ainsi que les nombreux tableaux synoptiques font de cet ouvrage un véritable livre de référence de la tomodensitométrie et de ses applications en pathologie clinique. Après un rappel historique et technique, les différents domaines d'applications sont abordés (encéphale, régions sphéno-orbitaire et cervico-faciale, rachis, thorax, abdomen, pelvis, articulations... ) suivant un schéma didactique : description des techniques et préparation des examens, présentation des résultats normaux et images pièges, principales pathologies, indications et contre-indications. La pédiatrie et la radiothérapie font l'objet d'un développement spécifique. Cet ouvrage intéresse les radiologues en formation ou confirmés souhaitant parfaire leurs connaissances sur les applications du scanner, mais il intéressera aussi les médecins praticiens ou spécialistes qui ont à prescrire ou à interpréter un scanner.
Author: Karl H. Höhne
Publisher: Springer Science & Business Media
ISBN: 3642842119
Category : Computers
Languages : en
Pages : 449
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The visualization of human anatomy for diagnostic, therapeutic, and educational pur poses has long been a challenge for scientists and artists. In vivo medical imaging could not be introduced until the discovery of X-rays by Wilhelm Conrad ROntgen in 1895. With the early medical imaging techniques which are still in use today, the three-dimensional reality of the human body can only be visualized in two-dimensional projections or cross-sections. Recently, biomedical engineering and computer science have begun to offer the potential of producing natural three-dimensional views of the human anatomy of living subjects. For a broad application of such technology, many scientific and engineering problems still have to be solved. In order to stimulate progress, the NATO Advanced Research Workshop in Travemiinde, West Germany, from June 25 to 29 was organized. It brought together approximately 50 experts in 3D-medical imaging from allover the world. Among the list of topics image acquisition was addressed first, since its quality decisively influences the quality of the 3D-images. For 3D-image generation - in distinction to 2D imaging - a decision has to be made as to which objects contained in the data set are to be visualized. Therefore special emphasis was laid on methods of object definition. For the final visualization of the segmented objects a large variety of visualization algorithms have been proposed in the past. The meeting assessed these techniques.
Author: Pierre Grangeat
Publisher: Springer Science & Business Media
ISBN: 9401587493
Category : Medical
Languages : en
Pages : 313
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Book Description
This book contains a selection of communications presented at the Third International Meeting on Fully Three-Dimensional Image Reconstruction in Radiology and Nuclear Medicine, held 4-6 July 1995 at Domaine d' Aix-Marlioz, Aix-Ies-Bains, France. This nice resort provided an inspiring environment to hold discussions and presentations on new and developing issues. Roentgen discovered X-ray radiation in 1895 and Becquerel found natural radioactivity in 1896 : a hundred years later, this conference was focused on the applications of such radiations to explore the human body. If the physics is now fully understood, 3D imaging techniques based on ionising radiations are still progressing. These techniques include 3D Radiology, 3D X-ray Computed Tomography (3D-CT), Single Photon Emission Computed Tomography (SPECT), Positron Emission Tomography (PET). Radiology is dedicated to morphological imaging, using transmitted radiations from an external X-ray source, and nuclear medicine to functional imaging, using radiations emitted from an internal radioactive tracer. In both cases, new 3D tomographic systems will tend to use 2D detectors in order to improve the radiation detection efficiency. Taking a set of 2D acquisitions around the patient, 3D acquisitions are obtained. Then, fully 3D image reconstruction algorithms are required to recover the 3D image of the body from these projection measurements.
Author: Daniele Panetta
Publisher: CRC Press
ISBN: 100017588X
Category : Medical
Languages : en
Pages : 97
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Book Description
This is a practical guide to tomographic image reconstruction with projection data, with strong focus on Computed Tomography (CT) and Positron Emission Tomography (PET). Classic methods such as FBP, ART, SIRT, MLEM and OSEM are presented with modern and compact notation, with the main goal of guiding the reader from the comprehension of the mathematical background through a fast-route to real practice and computer implementation of the algorithms. Accompanied by example data sets, real ready-to-run Python toolsets and scripts and an overview the latest research in the field, this guide will be invaluable for graduate students and early-career researchers and scientists in medical physics and biomedical engineering who are beginners in the field of image reconstruction. A top-down guide from theory to practical implementation of PET and CT reconstruction methods, without sacrificing the rigor of mathematical background Accompanied by Python source code snippets, suggested exercises, and supplementary ready-to-run examples for readers to download from the CRC Press website Ideal for those willing to move their first steps on the real practice of image reconstruction, with modern scientific programming language and toolsets Daniele Panetta is a researcher at the Institute of Clinical Physiology of the Italian National Research Council (CNR-IFC) in Pisa. He earned his MSc degree in Physics in 2004 and specialisation diploma in Health Physics in 2008, both at the University of Pisa. From 2005 to 2007, he worked at the Department of Physics "E. Fermi" of the University of Pisa in the field of tomographic image reconstruction for small animal imaging micro-CT instrumentation. His current research at CNR-IFC has as its goal the identification of novel PET/CT imaging biomarkers for cardiovascular and metabolic diseases. In the field micro-CT imaging, his interests cover applications of three-dimensional morphometry of biosamples and scaffolds for regenerative medicine. He acts as reviewer for scientific journals in the field of Medical Imaging: Physics in Medicine and Biology, Medical Physics, Physica Medica, and others. Since 2012, he is adjunct professor in Medical Physics at the University of Pisa. Niccolò Camarlinghi is a researcher at the University of Pisa. He obtained his MSc in Physics in 2007 and his PhD in Applied Physics in 2012. He has been working in the field of Medical Physics since 2008 and his main research fields are medical image analysis and image reconstruction. He is involved in the development of clinical, pre-clinical PET and hadron therapy monitoring scanners. At the time of writing this book he was a lecturer at University of Pisa, teaching courses of life-sciences and medical physics laboratory. He regularly acts as a referee for the following journals: Medical Physics, Physics in Medicine and Biology, Transactions on Medical Imaging, Computers in Biology and Medicine, Physica Medica, EURASIP Journal on Image and Video Processing, Journal of Biomedical and Health Informatics.
Author: Gengsheng Zeng
Publisher: Springer Science & Business Media
ISBN: 3642053688
Category : Technology & Engineering
Languages : en
Pages : 204
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Book Description
"Medical Image Reconstruction: A Conceptual Tutorial" introduces the classical and modern image reconstruction technologies, such as two-dimensional (2D) parallel-beam and fan-beam imaging, three-dimensional (3D) parallel ray, parallel plane, and cone-beam imaging. This book presents both analytical and iterative methods of these technologies and their applications in X-ray CT (computed tomography), SPECT (single photon emission computed tomography), PET (positron emission tomography), and MRI (magnetic resonance imaging). Contemporary research results in exact region-of-interest (ROI) reconstruction with truncated projections, Katsevich's cone-beam filtered backprojection algorithm, and reconstruction with highly undersampled data with l0-minimization are also included. This book is written for engineers and researchers in the field of biomedical engineering specializing in medical imaging and image processing with image reconstruction. Gengsheng Lawrence Zeng is an expert in the development of medical image reconstruction algorithms and is a professor at the Department of Radiology, University of Utah, Salt Lake City, Utah, USA.
Author: Gabor T. Herman
Publisher: Springer Science & Business Media
ISBN: 1846287235
Category : Computers
Languages : en
Pages : 302
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Book Description
This revised and updated second edition – now with two new chapters - is the only book to give a comprehensive overview of computer algorithms for image reconstruction. It covers the fundamentals of computerized tomography, including all the computational and mathematical procedures underlying data collection, image reconstruction and image display. Among the new topics covered are: spiral CT, fully 3D positron emission tomography, the linogram mode of backprojection, and state of the art 3D imaging results. It also includes two new chapters on comparative statistical evaluation of the 2D reconstruction algorithms and alternative approaches to image reconstruction.
Author: FRANCOISE.. PEYRIN FI
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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CE TRAVAIL CONCERNE LA RECONSTRUCTION D'IMAGES EN TOMOGRAPHIE REELLEMENT 3D PAR RAYONS X. LA METHODE CONSISTE A ACQUERIR DES RADIOGRAPHIES DE L'OBJET POUR DIFFERENTES POSITIONS D'UNE SOURCE CONIQUE DE RAYONS X. L'IMAGE 3D EST ENSUITE OBTENUE PAR RESOLUTION D'UN PROBLEME DE RECONSTRUCTION A PARTIR DE PROJECTIONS CONIQUES. APRES AVOIR SITUE LA METHODE PAR RAPPORT AUX AUTRES MODALITES D'IMAGERIE TOMOGRAPHIQUE ET PRESENTE UNE ETUDE BIBLIOGRAPHIE DES METHODES DE RECONSTRUCTION D'IMAGES, LA GENERALISATION D'UNE FORMULE D'INVERSION EST DEMONTREE. L'ALGORITHME EN DECOULANT MIS EN UVRE SUR UN CALCULATEUR VECTORIEL EST TESTE SUR DES SIMULATIONS. LORSQUE LA SOURCE SE DEPLACE SUR LA SURFACE D'UNE SPHERE, LA FORMULE D'INVERSION EST EXACTE ET LES IMAGES RECONSTRUITES SONT SATISFAISANTES. POUR D'AUTRES TRAJECTOIRES DE LA SOURCE, L'IMAGE OBTENUE PEUT ETRE CONSIDEREE COMME UNE PREMIERE APPROXIMATION DE L'OBJET. AFIN D'ETRE MOINS DEPENDANT DES CONDITIONS D'ACQUISITION, UNE APPROCHE ALGEBRIQUE A CE PROBLEME EST CONSIDEREE. L'UTILISATION DE TROIS ALGORITHMES DE RECONSTRUCTION ITERATIFS PAR BLOCS POUVANT INCLURE DES CONTRAINTES SIMPLES EST PROPOSEE. ENFIN, LES DIVERSES METHODES SONT APPLIQUEES A LA RECONSTRUCTION D'UN FANTOME OSSEUX A PARTIR DE PROJECTIONS PHYSIQUES, ET QUELQUES CONCLUSIONS CONCERNANT LA REALISATION D'UN SCANNER REELLEMENT 3D, SONT PRESENTEES
Author: NAHUM Henri
Publisher: Lavoisier
ISBN: 2257705815
Category :
Languages : en
Pages : 840
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Book Description
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.
