Download or read book Three dimensional Image Quality Evaluation and Improvement in Flat panel Detector Based Cone beam CT Imaging written by Yan Zhang and published by . This book was released on 2009 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cone Beam Computed Tomography written by Chris C. Shaw and published by Taylor & Francis. This book was released on 2014-02-14 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional computed tomography (CT) techniques employ a narrow array of x-ray detectors and a fan-shaped x-ray beam to rotate around the patient to produce images of thin sections of the patient. Large sections of the body are covered by moving the patient into the rotating x-ray detector and x-ray source gantry. Cone beam CT is an alternative technique using a large area detector and cone-shaped x-ray beam to produce 3D images of a thick section of the body with one full angle (360 degree or 180 degree plus detector coverage) rotation. It finds applications in situations where bulky, conventional CT systems would interfere with clinical procedures or cannot be integrated with the primary treatments or imaging systems. Cone Beam Computed Tomography explores the past, present, and future state of medical x-ray imaging while explaining how cone beam CT, with its superior spatial resolution and compact configuration, is used in clinical applications and animal research. The book: Supplies a detailed introduction to cone beam CT, covering basic principles and applications as well as advanced techniques Explores state-of-the-art research and future developments while examining the fundamental limitations of the technology Addresses issues related to implementation and system characteristics, including image quality, artifacts, radiation dose, and perception Reviews the historical development of medical x-ray imaging, from conventional CT techniques to volumetric 3D imaging Discusses the major components of cone beam CT: image acquisition, reconstruction, processing, and display A reference work for scientists, engineers, students, and imaging professionals, Cone Beam Computed Tomography provides a solid understanding of the theory and implementation of this revolutionary technology.
Download or read book Maxillofacial Cone Beam Computed Tomography written by William C. Scarfe and published by Springer. This book was released on 2018-01-04 with total page 1241 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive description of the fundamental operational principles, technical details of acquiring and specific clinical applications of dental and maxillofacial cone beam computed tomography (CBCT). It covers all clinical considerations necessary for optimal performance in a dental setting. In addition overall and region specific correlative imaging anatomy of the maxillofacial region is described in detail with emphasis on relevant disease. Finally imaging interpretation of CBCT images is presented related to specific clinical applications. This book is the definitive resource for all who refer, perform, interpret or use dental and maxillofacial CBCT including dental clinicians and specialists, radiographers, ENT physicians, head and neck, and oral and maxillofacial radiologists.
Download or read book Construction and Evaluation of Differential Phase contrast Cone Beam CT Imaging System written by Jiangkun Liu and published by . This book was released on 2015 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: "When X-rays travel through an object, both the intensity and phase status are varied. The amount of variation depends on the attenuation coefficients and phase coefficients of the materials that the object consists of. In recent years, cone beam breast computed tomography (CBBCT) has emerged as a cutting-edge X-ray imaging modality by reconstructing the attenuation contrast. It is an effective method for screening and diagnosis for breast cancer by providing isotropic three-dimensional images with high resolution and high contrast-to-noise ratio (CNR). However, because the variation of attenuation coefficients among soft tissues is subtle, CBBCT is limited in further characterizing breast lesions. Phase contrast CT technology has been attracting research interests recently. It provides new insight into an object by imaging the phase coefficient, which is more sensitive than the attenuation coefficient. Therefore, it has the potential to overcome the limitations of CBBCT and deliver complementary information. Several phase contrast imaging methods have been developed in the past years. However, the requirement of a coherent X-ray source with a sufficiently small dimension impairs their application as a standard method in hospital-based medical imaging. In this thesis, a grating-based bench-top differential phase contrast cone beam CT (DPC-CBCT) system was designed and constructed. Based on the attenuation-based CBCT imaging system setup, it deploys three more major components: a source grating, a phase grating and an analyzer grating. The source grating enables the system to use a hospital-grade X-ray tube and together they provide sufficient X-ray output power and spatial coherence. The phase grating and the analyzer grating transform the phase shift into intensity contrast based on Talbot interferometry so that a high-resolution detector is not necessary. One of the major challenges of the system construction is grating fabrication because of their high aspect ratio and high precision requirements. This work presents designs for robust recipes that produced gratings meeting our demanding criteria. Another challenge is that the system requires highly precise grating alignment to produce the best contrast effect. An effective method is presented in this work that aligns the phase grating the analyzer grating precisely. The second part of this thesis is to evaluate our DPC-CBCT imaging system in terms of uniformity, CNR, noise property and contrast resolution using a cylinder phantom. As the field of view of the imaging system is limited due to the current grating fabrication technique, it is necessary to investigate the performance of volume of interest (VOI) imaging. The VOI imaging experiment was carried out by scanning a large cylinder phantom. In order to evaluate the performance of DPC-CBCT on actual soft tissues, human breast specimen and small animal experiments were carried out. Phantom experiment results indicate that, compared with attenuation imaging, phase contrast imaging provides higher CNR and contrast resolution. However, in specimen and small animal experiments, phase contrast image quality was greatly degraded. The coherence property of an X-ray beam is critical in phase contrast imaging because the image formation mechanism is based on X-ray beam diffraction. Inhomogeneous objects, such as bones and soft tissues, have a large amount of internal density fluctuations or small structures on a micrometer scale. These small structures produce strong small-angle scattering and greatly reduce the coherence of X-ray beams reaching the detector. In order to evaluate the coherence loss caused by an object quantitatively, the last part of this thesis introduces dark-field imaging, which forms an image by computing small-angle scattering power. Dark-field imaging is also based on grating interferometry and the data can be obtained from the same scan with phase contrast imaging. It can be used to characterize the distribution of micro-structures and to investigate coherence loss in DPC-CBCT imaging. Besides coherence loss, several other factors affect the performance of DPC-CBCT, such as polychromatic X-ray spectrum and imperfect gratings. We believe that phase contrast imaging has the potential to be a more powerful imaging tool and more work will be dedicated to the improvement of DPC-CBCT"--Pages vi-viii.
Download or read book Medical Imaging and Augmented Reality written by Hongen Liao and published by Springer Science & Business Media. This book was released on 2010-09 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 5th International Workshop on Medical Imaging and Augmented Reality, MIAR 2010, held in Beijing, China, in September 2010. The 60 revised full papers presented were carefully reviewed and selected from 139 submissions. The papers are organized in topical sections on image segmentation, image registration, shape modeling and morphometry, image analysis, diffusion tensor image, computer assisted intervention, medical image computing, visualization and application, segmentation and classification, medical image understanding, image-guided surgery, and augmented reality.
Download or read book Computed Tomography written by Willi A. Kalender and published by John Wiley & Sons. This book was released on 2011-07-07 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book offers a comprehensive and user-oriented description of the theoretical and technical system fundamentals of computed tomography (CT) for a wide readership, from conventional single-slice acquisitions to volume acquisition with multi-slice and cone-beam spiral CT. It covers in detail all characteristic parameters relevant for image quality and all performance features significant for clinical application. Readers will thus be informed how to use a CT system to an optimum depending on the different diagnostic requirements. This includes a detailed discussion about the dose required and about dose measurements as well as how to reduce dose in CT. All considerations pay special attention to spiral CT and to new developments towards advanced multi-slice and cone-beam CT. For the third edition most of the contents have been updated and latest topics like dual source CT, dual energy CT, flat detector CT and interventional CT have been added. The enclosed CD-ROM again offers copies of all figures in the book and attractive case studies, including many examples from the most recent 64-slice acquisitions, and interactive exercises for image viewing and manipulation. This book is intended for all those who work daily, regularly or even only occasionally with CT: physicians, radiographers, engineers, technicians and physicists. A glossary describes all the important technical terms in alphabetical order. The enclosed DVD again offers attractive case studies, including many examples from the most recent 64-slice acquisitions, and interactive exercises for image viewing and manipulation. This book is intended for all those who work daily, regularly or even only occasionally with CT: physicians, radiographers, engineers, technicians and physicists. A glossary describes all the important technical terms in alphabetical order.
Download or read book Multislice CT written by Maximilian F Reiser and published by Springer Science & Business Media. This book was released on 2008-10-20 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions by numerous experts
Download or read book Multi Detector CT Imaging written by Luca Saba and published by CRC Press. This book was released on 2013-10-21 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developments in CT technology during the last 20 years have impressively improved its diagnostic potentialities. Part of a two-volume set that covers all aspects of CT imaging, Multi-Detector CT Imaging: Principles, Head, Neck, and Vascular Systems contains easily searchable clinical specialty chapters that provide specific information without need
Download or read book Image Processing in Radiation Therapy written by Kristy K. Brock and published by CRC Press. This book was released on 2016-04-19 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: Images from CT, MRI, PET, and other medical instrumentation have become central to the radiotherapy process in the past two decades, thus requiring medical physicists, clinicians, dosimetrists, radiation therapists, and trainees to integrate and segment these images efficiently and accurately in a clinical environment. Image Processing in Radiation
Download or read book Comprehensive Textbook of Diagnostic Radiology written by Arun Kumar Gupta and published by Jaypee Brothers Medical Publishers. This book was released on 2021-03-31 with total page 4180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of this four-volume set is a guide to the complete field of diagnostic radiology. Comprising more than 4000 pages, the third edition has been fully revised and many new topics added, providing clinicians with the latest advances in the field, across four, rather than three, volumes. Volume 1 covers genitourinary imaging and advances in imaging technology. Volume 2 covers paediatric imaging and gastrointestinal and hepatobiliary imaging. Volume 3 covers chest and cardiovascular imaging and musculoskeletal and breast imaging. Volume 4 covers neuroradiology including head and neck imaging. The comprehensive text is further enhanced by high quality figures, tables, flowcharts and photographs. Key points Fully revised, third edition of complete guide to diagnostic radiology Four-volume set spanning more than 4000 pages Highly illustrated with photographs, tables, flowcharts and figures Previous edition (9789352707041) published in 2019
Download or read book Digital Workflow in Reconstructive Dentistry written by Wael Att and published by Quintessenz Verlag. This book was released on 2021-02-01 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital Workflow in Reconstructive Dentistry is the result of efforts made by the academic team at the Department of Prosthodontics, University Hospital of Freiburg. It aims to build a fundamental understanding of the general principles, science, and clinics of digital dental medicine. The information provided within these pages summarizes the various components of the digital workflow in reconstructive dentistry and discusses their advantages and disadvantages. Moreover, insights are provided about upcoming, game-changing technologies. By reading this book, students, clinicians, and researchers will gain and enhance their knowledge about digital dental medicine and identify the areas they need to focus on next in order to integrate the available technologies in their daily work. Clearly, the path of digital dental medicine will not stop here. Contributors Amirah M. R. Alammar • Abdulaziz Alsahaf • Wael Att • Maria Bateli • Jasmin Bernhart • Shaza Bishti • Sarah Blattner • Miha Brezavšček • Sandy Cepa • Nadine Emmanoulidi • Ahmed Fawzy • Manrique Fonseca • Michele Frapporti • Rumpa Ganguly • Yousef Al-Ghamdi • Petra Ch. Gierthmuehlen • Aiste Gintaute • Ulrich Lamott • Christos Lamprinos • Matthias Petsch • Udo Plaster • Aikaterini Ploumaki • Hanna Rauberger • Elisabeth Schwartzkopff • Christian F. Selz • Thamer Al-Sharif • Benedikt Spies • Frank A. Spitznagel • Jörg R. Strub • Michael Swain • Taskin Tuna • Alexander Vuck • Siegbert Witkowski
Download or read book Computer Aided Oral and Maxillofacial Surgery written by Jan Egger and published by Academic Press. This book was released on 2021-04-29 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer-Aided Oral and Maxillofacial Surgery: Developments, Applications, and Future Perspectives is an ideal resource for biomedical engineers and computer scientists, clinicians and clinical researchers looking for an understanding on the latest technologies applied to oral and maxillofacial surgery. In facial surgery, computer-aided decisions supplement all kind of treatment stages, from a diagnosis to follow-up examinations. This book gives an in-depth overview of state-of-the-art technologies, such as deep learning, augmented reality, virtual reality and intraoperative navigation, as applied to oral and maxillofacial surgery. It covers applications of facial surgery that are at the interface between medicine and computer science. Examples include the automatic segmentation and registration of anatomical and pathological structures, like tumors in the facial area, intraoperative navigation in facial surgery and its recent developments and challenges for treatments like zygomatic implant placement. Provides comprehensive, state-of-the-art knowledge of interdisciplinary applications in facial surgery Presents recent algorithmic developments like Deep Learning, along with recent devices in augmented reality and virtual reality Includes clinical knowledge of two facials surgeons who give insights into the current clinical practice and challenges of facial surgeons in university hospitals in Austria and China
Download or read book Diagnostic Radiology Recent Advances and Applied Physics in Imaging written by Arun Kumar Gupta and published by JP Medical Ltd. This book was released on 2013-07-30 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition has been fully updated to provide radiologists with all the recent technological advances in diagnostic radiology. Divided into six sections, it covers all the key aspects of the imaging – ultrasound, computed tomography, magnetic resonance imaging, radiography and interventional radiography, and contrast media. The final section discusses miscellaneous topics including evidence based radiology, radiation protection, molecular imaging, planning a modern imaging department, and common drugs used. A separate chapter is dedicated to picture archiving and data management. This comprehensive new edition includes nearly 600 full colour radiological images and illustrations. Key points Fully updated, new edition presenting recent technological advances in diagnostic radiology Covers all key imaging techniques Includes nearly 600 radiological photographs and illustrations Previous edition published in 2007
Download or read book Cone Beam Computed Tomography written by Prashant P Jaju and published by JP Medical Ltd. This book was released on 2015-05-10 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cone Beam Computed Tomography is an imaging technique in which x-rays diverge to form a cone. Cone Beam Computed Tomography: A Clinician’s Guide to 3D Imaging is a concise, highly illustrated manual on this increasingly important form of imaging in dentistry. Divided into twelve chapters, the book begins with a history of Cone Beam Computed Tomography, followed by chapters on the physics and apparatus of CBCT and the need for CBCT in dentistry. Further chapters cover the role of CBCT in specific sub-specialties of dentistry, and a glossary provides an explanation of CBCT terminology. The role of CBCT in prosthodontics, orthodontics and airway analysis, endodontics and caries diagnosis, oral and maxillofacial pathologies, periodontal disease and forensic odontology, is described in detail. This book also brings the reader up to date on possible future applications of CBCT in dentistry. Cone Beam Computed Tomography: A Clinician’s Guide to 3D Imaging includes 180 full colour images and illustrations, further enhancing this invaluable resource for dentists. Key Points Concise guide to 3D imaging in dentistry Includes a history and basics of CBCT, as well as the role of CBCT in various dentistry sub-specialties 189 full colour images and illustrations
Download or read book Index Medicus written by and published by . This book was released on 2004 with total page 1876 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Download or read book World Congress on Medical Physics and Biomedical Engineering September 7 12 2009 Munich Germany written by Olaf Dössel and published by Springer Science & Business Media. This book was released on 2010-01-04 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Present Your Research to the World! The World Congress 2009 on Medical Physics and Biomedical Engineering – the triennial scientific meeting of the IUPESM - is the world’s leading forum for presenting the results of current scientific work in health-related physics and technologies to an international audience. With more than 2,800 presentations it will be the biggest conference in the fields of Medical Physics and Biomedical Engineering in 2009! Medical physics, biomedical engineering and bioengineering have been driving forces of innovation and progress in medicine and healthcare over the past two decades. As new key technologies arise with significant potential to open new options in diagnostics and therapeutics, it is a multidisciplinary task to evaluate their benefit for medicine and healthcare with respect to the quality of performance and therapeutic output. Covering key aspects such as information and communication technologies, micro- and nanosystems, optics and biotechnology, the congress will serve as an inter- and multidisciplinary platform that brings together people from basic research, R&D, industry and medical application to discuss these issues. As a major event for science, medicine and technology the congress provides a comprehensive overview and in–depth, first-hand information on new developments, advanced technologies and current and future applications. With this Final Program we would like to give you an overview of the dimension of the congress and invite you to join us in Munich! Olaf Dössel Congress President Wolfgang C.
Download or read book Oxford Textbook of Neuroimaging written by Massimo Filippi and published by Oxford Textbooks in Clinical N. This book was released on 2015 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part of the Oxford Textbooks in Clinical Neurology series, the Oxford Textbook of Neuroimaging provides an overview of the established and latest neuroimaging methodologies, and illustrates their application to the main diseases of the brain and the spinal cord including movement disorders, headache and stroke. In addition, assessments of neuroimaging techniques in both adult and paediatric neurological conditions are included, enabling thorough examples from both age groups. This full-colour book contains 280 detailed photographs and illustrations that enable a clear understanding of each technique. Covering the newest advances, each different imagining technique is comprehensively described, providing a practical relevance and a stimulus for more in-depth readings. The print edition is supplemented with a concurrent online edition, which allows access to the full content of the textbook, contains links from the references to primary research journal articles, and provides access to figures and tables that can be downloaded by the user. Providing a balanced state-of-the-art guide to neuroimaging for neurologists and radiologists, this title will enhance understanding of the pathophysiological basis of neurological conditions and will help set the stage for future research.
