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Books > Medicine > Other branches of medicine > Medical imaging > Radiology
PDE & Level Sets: Algorithmic Approaches to Static & Motion
Imagery is specially dedicated to the segmentation of complex
shapes from the field of imaging sciences using level sets and
PDEs. It covers the fundamentals of level sets, different kinds of
concepts of both geodesic curvature flows and planar flows, as well
as the power of incorporation of regional-statistics in level set
framework. In covering this material, this book presents
segmentation of object-in-motion imagery based on level sets in
eigen analysis framework, while also presenting classical problems
of boundary completion in cognitive images, like the pop-up of
subjective contours in the famous triangle of Kanizsa using surface
evolution framework, or the mean curvature evolution of a graph
with respect to the Riemannian metric induced by the image. All
results are presented for modal completion of cognitive objects
with missing boundaries.
Volume 15 follows the format of earlier volumes in the series. The contents give the next installment in the varied aspects of acoustical imaging research. On this occasion, some emphasis was placed on the rela tionship of l1nderwater acoustics to acoustical imaging and a volume of papers under the title "Underwater Acoustics Proceedings from the 12th ICA Symposium held in Halifax," will appear at roughly the same time as this volume. There is no duplication in these volumes but they are in terlinked, at least to the extent that papers from common conference sessions appear in one or another volume. An innovation is the review paper presented at the beginning of the volume "A History of Acoustical Imaging," by G Wade. This fairly detailed review comes at a point in time when so much has been achieved and in some cases passed by, that a record of some of the earlier work might help to keep a balance with the large collections of research papers which have appeared in the many volumes."
This book embarks on a journey never taken before, approaching the imaging of the disease of achalasia with new pathophysiological assumptions in mind, coming from the Chicago Classification of Manometric diagnosis. Using state-of-the-art, modern x-ray technology, the authors have developed a schematic and simple approach to detection, diagnosis, and patient stadiation and prognostic stratification, for radiologists, clinicians, and students. Key Features: 1. Serves as a useful guide to structured and comprehensive reporting of barium swallows, both in achalasia and other oesophageal motility disorders. 2. Allows radiologists, both specialists, and trainees, to comprehensively understand achalasia from anatomic, pathophysiologic, therapeutic points of view, allowing for exact comprehension, detection, and reporting of the radiologic hallmarks of the disease. 3. Empowers readers to diagnose and define the exact achalasia subtype in each patient, due to the specifically developed FBF score.
This unique text/reference discusses in depth the two integral components of reconstructive surgery; fracture detection, and reconstruction from broken bone fragments. In addition to supporting its application-oriented viewpoint with detailed coverage of theoretical issues, the work incorporates useful algorithms and relevant concepts from both graph theory and statistics. Topics and features: presents practical solutions for virtual craniofacial reconstruction and computer-aided fracture detection; discusses issues of image registration, object reconstruction, combinatorial pattern matching, and detection of salient points and regions in an image; investigates the concepts of maximum-weight graph matching, maximum-cardinality minimum-weight matching for a bipartite graph, determination of minimum cut in a flow network, and construction of automorphs of a cycle graph; examines the techniques of Markov random fields, hierarchical Bayesian restoration, Gibbs sampling, and Bayesian inference.
In contrast to most anatomic radiographic imaging techniques, nuclear medicine permits real time, non-invasive imaging of human physiology and pathophysiology and also allows for exquisite targeting of disease with therapeutic radiology. To open this window to the processes of human disease, one must first understand the physical processes behind radioactive decay and emission, as well the principles of radiation detection. Practical Nuclear Medicine Physics provides residents and practitioners in nuclear medicine and radiology a readable explanation of the physics concepts underpinning nuclear imaging and how they impact the utilization and interpretation of those images. Following a brief introductory section, the book provides numerous case examples, illustrating various imaging artifacts and pitfalls that can be recognized and remedied with a solid understanding of the physics behind the procedure. Understanding and applying the physics behind nuclear medicine is essential to maximizing not only diagnostic and therapeutic accuracy for providing optimal patient care, but "Practical Physics" is a required portion of radiology residency education and a designated area of the board exams.
This book reviews the frontier of research and clinical applications of Patient Specific Modeling, and provides a state-of-the-art update as well as perspectives on future directions in this exciting field. The book is useful for medical physicists, biomedical engineers and other engineers who are interested in the science and technology aspects of Patient Specific Modeling, as well as for radiologists and other medical specialists who wish to be updated about the state of implementation.
There is a tradition behind the current radiologic examination of the small bowel. Many of the great names in gastrointestinal radiology have established their reputations on the basis of their work in the small bowel. This is an area which is assuming ever greater importance for radiologists as its mucosal surface continues to elude the endos copist. Moreover, it is an aspect of radiology which calls for the greatest technical and interpretative skill. It is a great pleasure to welcome the English language version of this beautiful work on Radiology of the Small Intestine. English speaking physicians are frequently not as familiar with the large body of work published in French as they should be. Tant pis ! Dr. Bret and his co-workers have been pioneers in the pursuit of excellence in gastrointestinal radiology. During all the years that I have been involved in this field, I have admired their work.
This volume constitutes a compilation of the latest experiments and theories on a rapidly evolving and maturing field in MRI/MRS, which is the use of the stable isotope 13-C. The 13-C is used to probe the chemistry, mechanism, and function in living systems. All the chapters are written by experts in the field who discuss topics such as 'Tracer Theory and the Suitability of 13-C NMR', 'Applications of 13-C to Studies of Human Brain Metabolism', etc.
Fetal and perinatal medicine is a rapidly expanding field, and noninvasive imaging by means of ultrasonography and MRI is playing a major role in refining diagnosis and therapy. Recent technological advances in these imaging modalities now allow unprecedented morphological depiction of the fetus and excellent insight into complex pathologic conditions, as well as yielding superior guidance for therapeutic fetal inter ventions. I am very pleased that Professor F. Avni , a leading international pediatric radiologist, was prepared to take on the challenging task of preparing and editing this comprehen sive and up-to-date overview of our knowledge in the area of fetal and perinatal imaging. He has been successful in engaging well-known experts with outstanding qualifications in fetal imaging to join him in this venture. I would like to congratulate Professor Avni and all contributing authors most sincerely for their excellent work. I am confident that this outstanding volume will meet with great interest not only from general as well as specialized pediatric radiologists but also from neonatologists and pediatricians. I trust it will enjoy the same success as many previous volumes in this series. ALBERT L. BAERT Leuven Preface Fetal and perinatal medicine would not have developed without the extensive use of obstetric ultrasound (US). In order to be efficient, the examination has to be performed very carefully and by sonologists fully conversant with the normal and abnormal development of the fetus.
Healthcare and Biotechnology in the 21st Century: Concepts and Case Studies introduces students not pursuing degrees in science or engineering to the remarkable new applications of technology now available to physicians and their patients and discusses how these technologies are evolving to permit new treatments and procedures. The book also elucidates the societal and ethical impacts of advances in medical technology, such as extending life and end of life decisions, the role of genetic testing, confidentiality, costs of health care delivery, scrutiny of scientific claims, and provides background on the engineering approach in healthcare and the scientific method as a guiding principle. This concise, highly relevant text enables faculty to offer a substantive course for students from non-scientific backgrounds that will empower them to make more informed decisions about their healthcare by significantly enhancing their understanding of these technological advancements.
Highly illustrated text to aid understanding of best practice in carotid treatment Reflects international best practice Useful in clinical practice and to improve patient care
Uterine fibroids are the commonest benign tumors of the uterus and pelvis, and are the single most common cause of surgery in women apart from childbirth. Originally published in 2003, this pioneering book compares and contrasts conventional surgical treatments with the rapid emergence of uterine artery embolization as an alternative and less invasive procedure, and is of major importance in relation to the treatment of the condition. A host of international experts from gynecology and interventional radiology have contributed chapters, including one by Dr Jacques Ravina, the pioneer of uterine artery embolization. Although the main focus is on embolization, the book does also give a very comprehensive account of the epidemiology, pathology, diagnosis and management of uterine fibroids, and of conventional treatments such as hysterectomy and myomectomy. This all-inclusive approach makes the book suitable for gynecologists, radiologists, and for all trainees and residents looking after patients with uterine fibroids.
Computer technology has developed remarkably in the field of neurosurgery during the past 10 to 20 years. Great achievements have been made recently in neuroimaging techniques and computer technology for neuronavigation, from frameless, armless systems to robotic microscopes. Contained in the present volume are all the papers presented at the International Symposium on Computer-Assisted Neurosurgery and selected papers presented at the 6th Annual Meeting of the Japanese Society of Computers in Neurosurgery, which were held in Kobe, Japan, on January 24-26, 1997. This volume is a comprehensive description and review of current technical ad vancements in computer-assisted neurosurgery, with a special focus on advanced intraoperative neuroimaging, various neuronavigation system, robotic microscopes, and strategies for preoperative and intraoperative surgical planning using high-power workstations with three-dimensional software. We express our thanks to the contributors for their participation and cooperation, and to Springer-Verlag for personal and technical assistance in publishing this work. We sincerely hope that this volume will contribute to improving neurosurgical technology and outcomes.
Neurological applications of PET include using itto identify Alzheimer's Disease, including differentiating between other forms of Dementia, to show causes of seizures that were otherwise unclear, and to diagnose psychiatric disorders like Schizophrenia. Although other books on PET may have a chapter or section on neurological applications, this is the only comprehensive and up-to-date book on neurological PET. It reviews PET in neuroscience with particular emphasis on findings that indicate its potential for improving diagnosis and treatment in neurology and psychiatry. Improving the transfer of the huge scientific developments in brain PET into clinical carewill produce tangible human benefit. To this end, "NeuroPET" focuses on practical and potentially clinically relevant issues and identify solid ground as well as open questions. In addition, the book includes major chapters on the methodological background, including tracer physiology and kinetic modeling, and a comprehensive literature review."
An Atlas of Radioscopic Catheter Placement is unique, and has been conceived as a handy reference guide for students, interventional cardiologists, nurses and electrophysiology technicians. It includes plenty of schemes and X-ray images, and every EP correct catheter positioning is explained step by step through detailed descriptions of the necessary manoeuvres, including some "trucks" brought about by the experience.
The series of workshops sponsored by the European Communities started with "Methodology of PET" at Hammersmith Hospital, London, in March 1984. This was followed by "Radiochemistry, Methodology and Standardization in PET" at the Service Hospitalier Frederic Joliot in Orsay, France, in March 1985. Both these meetings were, in the opinion of all participants, great successes, and it was agreed that such work shops should continue and be organized on the same basis. After these two workshops on the fundamentals of PET, time now is ripe to evaluate the clinical efficacy of PET investigations, and to discuss to what extend the information provided by this high technology and theoretical area has contributed to the understanding of disease mechanisms, leading to immediate clinical applications. As pointed out in the previous meetings, PET using short-lived radioisotopes produced in an on-line cyclotron is restricted to a few centers. Therefore, the topics studied so far were mainly of scientific interest and clinical problems were dealt with only marginally. Before this costly technique can be spread and new information made accessible to a broader clinical clientele, its clinical value must be demonstrat ed. So far, in the majority of studies, the central nervous system was the primary target organ, and PET has contributed a great deal to our understanding of brain physiology and pathology. Also on the heart, a substantial number of studies have been performed in various centers, but the application of PET to this organ is still somewhat limited."
Nuclear magnetic resonance imaging is one of several new experimental tech niques which have rec{, tly been applied to food systems. NMR in general and nuclear magnetic resonance imaging are powerful probes of the microscopic and macroscopic changes occurring in foods during processing, storage and utilization. The training that food scientists and food engineers have received in the past has often omitted specific courses in physical chemistry that form the theoretical and practical foundation necessary to fully utilized magnetic resonance experimental techniques. The goal of Magnetic Resonance Imaging in Foods is to introduce food scien tists and food engineers to magnetic resonance imaging and provide a basis for further study. As such the book begins with two chapters of an introductory nature. The first chapter introduces magnetic resonance phenomena, NMR in general, and MRI in detail. Particular emphasis is given to the limitations and typical ranges available for studying particular phenomena, for example, the range of diffusivities that can be studied using commercial grade NMR equipment. Chapter 2 gives a brief introduction to the classical physical model of NMR first introduced by Felix Bloch in 1946 and aspects important to the interpretation of MRI data. This chapter is provided for the researchers and students interested in more details of the basic theory. Chapter 2 can be skipped by those individuals not requiring more information on the basic theory of NMR. The next several chapters of the book are on applications of MRI to food systems."
Vortex Formation in the Cardiovascular System will recapitulate the current knowledge about the vortex formation in the cardiovascular system, from mechanics to cardiology. This can facilitate the interaction between basic scientists and clinicians on the topic of the circulatory system. The book begins with a synopsis of the fundamentals aspects of fluid mechanics to give the reader the essential background to address the proceeding chapters. Then the fundamental elements of vortex dynamics will be discussed, explaining the conditions for their formation and the rules governing their dynamics. The main equations are accompanied by mathematical models. Cardiovascular vortex formation is first analyzed in physiological, healthy conditions in the heart chambers and in the large arterial vessels. The analysis is initially presented with an intuitive appeal grounded on the physical phenomena and a focus on its clinical significance.In the proceeding chapters, the knowledge gained from either clinical or basic science literature will be discussed. The corresponding mathematical elements will finally be presented to ensure the adequate diligence. The proceeding chapters ensue to the analysis of pathological conditions, when the reader may have developed the ability to recognize normal from abnormal vortex formation phenomenon. Pathological vortex formation represents vortices that develop at sites where normally laminar flow should exist, e.g. stenosis and aneurisms. This analysis naturally leads to the interaction of vortices due to the surgical procedures with respect to prediction of changes in vortex formation. The existing techniques, from medical imaging to numerical simulations, to explore vortex flows in the cardiovascular systems will also be described. The presentations are accompanied by the mathematical definitions can that be understandable for reader without the advanced mathematical background, while an interested reader with more advanced knowledge in mathematics can be referred to references for further quantitative analyses. The book pursues the objective to transfer the fundamental vortex formation phenomena with application to the cardiovascular system to the reader. This book will be a valuable support for physicians in the evaluation of vortex influence on diagnosis and therapeutic choices. At the same time, the book will provide the rigorous information for research scientists, either from medicine and mechanics, working on the cardiovascular circulation incurring with the physics of vortex dynamics.
We are pleased to present this second volume of a series that has already received much interest. The application of magnetic resonance methods to the study of actual biological systems as contrasted to cell-free samples, although not entirely novel, as demonstrated by Civan and Shporer in Volume I, has taken on new dimensions with the use of phosphorus-31 and carbon-13 NMR in studying cells, tissues, and organelles. The applications of 31 P NMR to such systems is reviewed in this volume, while carbon-13 will be covered in a later one. The use of nitroxide spin labels has grown to the point where it now may be considered a common biological technique. The synthesis and applications of a new class of nitroxides is described in this volume. ESR spectroscopy of paramagnetic ions is a powerful approach to studying molecular and structural details, as the chapter by Boas, Pilbrow, and Smith on the ESR of copper in Volume 1 has shown. In this volume the ESR of molybdenum and iron is treated in a comparable fashion. In the first volume some aspects of 1 H NMR spectroscopy of certain classes of In this volume the high-resolu biological macromolecules were discussed.. tion multinuclear NMR spectra of peptides, including the physiologically significant peptide hormones, are reviewed."
The seventh annual multidisciplinary symposium on clinical oncology organised by the Royal College of Radiologists discussed the subject of malignant brain tumours. It was held in London in February 1985 and this volume collects together the edited texts of the papers which were presented at the meeting. Primary tumours of the central nervous system account for about 9070 of all malignant diseases but as much as 20% of all paediatric neoplasms. The prognosis ranges from excellent for some of the less aggressive tumours, through good for children's tumours such as medulloblastoma, to appalling for the high-grade adult astrocytomas. Improvements in pathological diagnosis and surgical and radiothera peutic techniques have led to considerable sequential improvements in outcome over those obtained in the past. In contrast the response to chemotherapy over the whole range of tumours remains disappoint ing, and clearly awaits new drugs and methods of delivery. The relative rarity of individual types of tumours, apart from the commoner high-grade adult astrocytomas, has made progress in terms of clinical trials difficult to organise. In spite of this much investigative work is in progress. The symposium, and the present volume, were designed to provide a comprehensive overview of the subject by experts, with an emphasis on the possible routes to future progress. The topics included aspects of pathology, imaging, diagno sis and treatment of both the common and uncommon primary tumours. It is hoped the papers will stimulate further interest and activity in this difficult area of clinical therapy and investigation."
Hyperthennia is rapidly becaning the fourth IIDdality of cancer treatment, at least a useful adjuvant to radiation therapy, chEfiO therapy or surgery; at best, a new therapeutic fonn that, properly used, may open new horizons in the fight against this dreadful disease. The staging is still primitive. The devices used are after laboratory irrprovisations, and lack the precision and definition of treatment fields that will allow mass use of the m: Xiality. Clinical practices are limited to the procedural evaluations of a few pioneer groups, and basic understanding of its mechanism of action, although progressing by leaps and bounds, is still short of perfection. The challenge and the pranise are there and because of this, p engineers, physicists, biologists, physiologists and clinicians fran different specialties have a basic need for interaction, both in tenus of exchange of scientific infonnation and peer review of results and clinical trials. To satisfy this need, to act as a clearinghouse of knowledge and a fonnn for discussion, the North Alrerican Hyperthennia Group (NAHG) has been fonned. The reeting in Detroit in August 1981 represents the first gathering of the group, to be followed by a second in Salt Lake City in April 1982."
2 ence of a wave zone or induction zone under industrial and exper- imental conditions determines the physical values used to assess the intensity of irradiation (the power flux density or the field in- tensity), the instruments used for measuring, and the experimental technique (irradiation from a distant source, in a cavity resonator, inductor, capacitor, and so on). The physical parameters eVidently also determine the biolog- ical effects of the different frequency bands. In recent decades various bands of radio waves have been extensively used in many branches of industry. The microwave band has been widely applied in the field of radar, radionavigation, radioastronomy, radiometeorology, radiocommunication, nuclear physics, and physiotherapy. The short-wave and ultrashort-wave band are used for physiotherapy, radiocommunication, broadcast- ing, television, and also for the heat treatment of dielectrics and for welding plasticized rubber. The long and medium waves are used for the heat treatment of metals in the vacuum-tube industry and in mechanical engineering.
This book contains extended versions of papers presented at the international Conference VIPIMAGE 2009 - ECCOMAS Thematic Conference on Computational Vision and Medical Image, that was held at Faculdade de Engenharia da Universidade do Porto, Portugal, from 14th to 16th of October 2009. This conference was the second ECCOMAS thematic conference on computational vision and medical image processing. It covered topics related to image processing and analysis, medical imaging and computational modelling and simulation, considering their multidisciplinary nature. The book collects the state-of-the-art research, methods and new trends on the subject of computational vision and medical image processing contributing to the development of these knowledge areas.
In Vivo EPR (ESR) is a textbook on this relatively new subject in
biomedical electron spin resonance. While a few chapters have
appeared in special topics volumes in this series, this book covers
the principles and theory, instrumentation as well as the latest
applications at the time of its writing. The authors are
world-renowned experts and pioneers in their fields. This book is
divided into two major sections dealing with theory and
instrumentation, and aspects of biochemistry, in vitro and in vivo
applications. A significant amount of detail is devoted to clinical
applications and the problems and pitfalls encountered in in vivo
spectroscopy and imaging. -History of In Vivo EPR, |
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