Sharmila Majumdar In the area of osteoporosis and skeletal changes, it is currently accepted that bone mineral density (BMD), widely used for screening, monitoring and assessing therapeutic efficacy, does not adequately explain the pathogenesis of osteoporosis, the process of aging, or the therapeutic efficacy of various treatments. In this context, trabecular micro- architecture has enormous potential to contribute to understanding the pathophysiology of osteopor.osis and therapy assessment. The use and value of noninvasive imaging and quantitative image analysis and processing of trabecular bone micro-architecture have increased dramatically due to recent advances in instrumentation and software. This emerging field is diverse, interdisciplinary, and encompasses many different imaging modalities. Interested researchers include those involved in technique development, basic science and animal studies, as well as clinical researchers and practicing physicians. With the growth of this area of research, a group of investigators at the 11th Interna- tional Workshop of Bone Densitometry, 1 concluded that a forum dedicated to this matter was urgently needed. With this agenda, Dr. Peter Ruegsegger organized the first sympo- 2 sium on conjunction with the 10th Conference of the European Society of Biomechanics. The symposium on Bone Architecture and Competence was a two-hourlong event which resulted in five chapters in Bone Research and Biomechanics, edited by G. Lowet, P. Ruegsegger, H. Weinans, and A. Meunier, published by lOS Press, 1997. The second symposium was held as a pre-symposium to the 12th Workshop on Bone Denistometry,3 and flourished as a daylong event.

Measurement of Cardiac Deformations from MRI: Physical and Mathematical Models describes the latest imaging and imag analysis techniques that have been developed at leading centers for the visualization, analysis, and understanding of normal and abnormal cardiac motion with magnetic resonance imaging (MRI). The use of MRI in measuring cardiac motion is particularly important because MRI is non-invasive, and it is the only modality capable of imaging detailed intramural motion within the myocardium. Biomedical engineers, medical physicists, computer scientists, and physicians interested in learning about the latest advances in cardiovascular MRI should find this book to be a valuable educational resource. In particular, it is more tutorial in nature than most of the technical papers where the research was originally published. Practitioners and researchers working in the field of cardiovascular MRI will find the book to be filled with practical technical details and references to other work, enabling the implementation of existing methods and serving as a basis for further research in the area.

This book contains the proceedings of the Special Session, Interaction of Inverse Problems and Image Analysis, held at the January 2001 meeting of the AMS in New Orleans, LA. The common thread among inverse problems, signal analysis, and image analysis is a canonical problem: recovering an object (function, signal, picture) from partial or indirect information about the object. Both inverse problems and imaging science have emerged in recent years as interdisciplinary research fields with profound applications in many areas of science, engineering, technology, and medicine. Research in inverse problems and image processing shows rich interaction with several areas of mathematics and strong links to signal processing, variational problems, applied harmonic analysis, and computational mathematics.This volume contains carefully referred and edited original research papers and high-level survey papers that provide overview and perspective on the interaction of inverse problems, image analysis, and medical imaging. The book is suitable for graduate students and researchers interested in signal and image processing and medical imaging.

This book provides a complete overview of all modalities used for hand and wrist imaging, along with a complete overview of the various disease entities that can be diagnosed. As a state-of-the-art overview of hand and wrist imaging it is a reference work for radiologists, hand surgeons, orthopedists, traumatologists, rheumatologists and internists and their residents in training. The chapters are written by experts in musculoskeletal radiology from various European countries and the USA.

Clinical Imaging of the Small Intestine offers a complete review of small bowel radiology and its applications. With contributions from leading international authorities, the book provides the reader with the pertinent aspects of gastrointestinal radiology, specifically the problems of technique and interpretation that confront radiologists.The second edition was revised to include: - CT and MRI of the small bowel; - Sonography of the small bowel; - Assessing the activity of Crohn's disease with MRI; - Vascular disorders and small bowel obstructions; - Immune deficiency diseases; - Differential diagnosis based on both pathologic and radiologic findings; - New Figures and expanded index.The comprehensive scope of coverage makes this book a highly specialized but nonetheless state-of-the-art reference for those practitioners who have an interest in learning more about intestinal imaging, including radiologists, gastroenterologists and surgeons.

This workbook on Quality assurance is primarily written for radiographers and radiological technologists, but it may prove valuable for other health professionals. It focuses on the most essential steps of practical quality assurance needed in order to improve safety, quality, and efficacy of their work, and may be used either for self study and self assessment, or as part of organized training courses. The workbook includes teaching techniques and health and safety issues in X-ray departments. It also includes 6 teaching modules on reject film analysis, accessory equipment, X-ray equipment, manual film processing, automatic film processing, and radiographicexposures. It concludes with two appendix on making simple test tools, graphs, check sheets and record sheets, as well as a glossary and references.

The techniques and instrumentation of medical imaging have rapidly evolved over the course of the past few years. Medical Imaging Physics, the premier resource in its field, now in its fourth edition, has been revised to include novel and emerging imaging approaches in the same clear and understandable but thorough manner of the former editions.

William Hendee and Russell Ritenour’s comprehensive text provides the tools necessary to be comfortable with the physical principles, technology concepts, equipment, and procedures used in diagnostic imaging, as well as to appreciate the technological capabilities and limitations of the discipline. Readers need not possess a background in physics. Broadly accessible, Medical Imaging Physics covers all aspects of image formation in modern medical imaging modalities, such as radiography, ultrasonography, computed tomography (CT), nuclear imaging, and magnetic resonance imaging. Other topics covered include:

• Digital x-ray imaging
• Doppler ultrasound
• Helical CT scanning
• Accumulation and analysis of nuclear data
• Experimental radiobiology
• Radiation protection and safety

Each chapter is composed of summaries, questions, and problems, as well as sidebars highlighting historical aspects and key facts and concepts; additionally, the Fourth Edition contains over 200 completely new figures. Physicians and residents in radiology and nuclear medicine, in addition to physicists, engineers, radiobiologists, and technologists working with diagnostic imaging technology, will find Medical Imaging Physics to be a vital addition to their professional libraries.

Dr. Leonard Swischuk, who is recognized for authoring several superb and widely read pediatric radiology textbooks, has produced yet another outstanding work on the important subject of imaging the cervical spine in children. A distinguished pediatric radiologist, he draws upon his extensive experience in the field and his gift for writing clear and readable text to provide practitioners with an insightful approach to pediatric cervical spine injuries. Those who work in trauma imaging will appreciate the wealth of practical guidelines contained in this thorough yet concise book. Dr. Swischuk's text is organized into six chapters. The first two discuss developmental anatomy and normal variants. Chapters three and four concentrate on congenital anomalies and on abnormalities of the dens. The final two chapters consider trauma and miscellaneous abnormalities of the cervical spine. The book has several notable strengths that are appealing to radiology residents, such as its succinct and well-organized overview of the topic. To help residents identify cases that they are likely to encounter during board exams and in practice, Dr. Swischuk selected excellent plain film examples from his personal collection that illustrate the conditions he discusses and reflect his emphasis on cervical radiography. The illustrated cases also include CT and MR images that clarify and qualify the plain film findings. Helpful reference lists complete each chapter and guide residents to resources for further reading. In addition, Dr. Swischuk 's direct writing style makes the complex content highly accessible, providing imaging residents with an invaluable introduction to pediatric cervical spine radiology.

Medical imaging is an important topic which is generally recognised as key to better diagnosis and patient care. It has experienced an explosive growth over the last few years due to imaging modalities such as X-rays, computed tomography (CT), magnetic resonance (MR) imaging, and ultrasound.This book focuses primarily on state-of-the-art model-based segmentation techniques which are applied to cardiac, brain, breast and microscopic cancer cell imaging. It includes contributions from authors based in both industry and academia and presents a host of new material including algorithms for:- brain segmentation applied to MR;- neuro-application using MR; - parametric and geometric deformable models for brain segmentation;- left ventricle segmentation and analysis using least squares and constrained least squares models for cardiac X-rays; - left ventricle analysis in echocardioangiograms;- breast lesion detection in digital mammograms;detection of cells in cell images.As an overview of the latest techniques, this book will be of particular interest to students and researchers in medical engineering, image processing, computer graphics, mathematical modelling and data analysis. It will also be of interest to researchers in the fields of mammography, cardiology, pathology and neurology.

This volume is unique in reporting on strategies for the application of molecular targeted imaging agents such as antibodies, peptides, receptors and contrast agents in the biologic grading of tumors, differential diagnosis of tumors, prediction of therapeutic response and monitoring tumor response to treatment. It also includes updated information on the imaging of tumor angiogenesis, hypoxia, apoptosis and gene delivery as well as expression in the understanding and utility of tumor molecular biology for better cancer management.

The present work is the second in a series constituting an extension of my doctoral thesis done at Stanford in the early 1970s. Like the earlier work, The Reciprocal Modular Brain in Economics and Politics, Shaping the Rational and Moral Basis ofOrganization, Exchange, and Choice (Plenum Publishing, 1999), it may also be considered to respond to the call for consilience by Edward O. Wilson. I agree with Wilson that there is a pressing need in the sciences today for the unification of the social with the natural sciences. I consider the present work to proceed from the perspective of behavioral ecology, specifically a subfield which I choose to call interpersonal behavioral ecology th Ecology, as a general field, has emerged in the last quarter of the 20 century as a major theme of concern as we have become increasingly aware that we must preserve the planet whose limited resources we share with all other earthly creatures. Interpersonal behavioral ecology, however, focuses not on the physical environment, but upon our social environment. It concerns our interpersonal behavioral interactions at all levels, from simple dyadic one-to-one personal interactions to our larger, even global, social, economic, and political interactions.

The last two decades have seen prodigious growth in the application of brain imaging methods to questions of substance abuse and addiction. Despite considerable advances in our understanding of the central effects of drugs provided by preclinical data, relatively little direct evidence was known of how substances of abuse affect the brain and other eNS processes in humans. Brain imaging techniques have allowed access to the human brain and enabled the asking of questions never before imagined. The positron emission tomography (PET) data ofVolkow and her colleagues in the late 1980s, showing the uptake and time course of cocaine's binding in the human brain, revealed for the first time the distinct sites of action of this drug. This work was extremely important because it showed clearly, through imaging a drug in the brain of a living human, that the time course of its action paralleled the behavioral state of "high. " This study marked a turning point in our understanding of drug-brain-behav ior interactions in humans. Many more investigations of drug effects on the structure and function of the human brain were soon to follow, leading to much better insights into brain systems. Brain imaging allowed for the direct assessment of structural and functional anatomy, biology, and chemistry in substance abusers.

AMI E. ISKANDRIAN & ERNST E. VAN DER WALL The first edition of this book was published in 1994. Since then important advances have occurred in the field of myocardial viability. This, coupled with increasing interest by the scientific community in the broader issues of its relevance to patient care, suggested to us the need to write the second edition. We are most fortunate to have the help of a distinguished group of experts who have helped shape the field; we appreciate their commitments and contributions. Almost all chapters have been radically modified. Chapter 1 deals with pathophysiology of myocardial hibernation and stunning; Chapter 2 with apoptosis; Chapter 3 with the role of positron emission tomography; Chapters 4 and 5 with the role of single photon emission computed tomography with thallium-201 and technetium agents, respectively; Chapter 6 with the role of SPECT fatty acid imaging; Chapter 7 with the role of SPECT FDG imaging; Chapter 8 with the role of cardiac catheterization angiography; Chapter 9 with the role of echocardiography; Chapter 10 with the role of magnetic resonance imaging; and Chapter 11 with clinical applications. Finally, Chapter 12 provides a short summary.

The articles collected in this volume are based on lectures given at the IMA Workshop, "Computational Radiology and Imaging: Therapy and Diagnostics," March 17-21, 1997. Introductory articles by the editors have been added. The focus is on inverse problems involving electromagnetic radiation and particle beams, with applications to X-ray tomography, nuclear medicine, near-infrared imaging, microwave imaging, electron microscopy, and radiation therapy planning. Mathematical and computational tools and models which play important roles in this volume include the X-ray transform and other integral transforms, the linear Boltzmann equation and, for near-infrared imaging, its diffusion approximation, iterative methods for large linear and non-linear least-squares problems, iterative methods for linear feasibility problems, and optimization methods. The volume is intended not only for mathematical scientists and engineers working on these and related problems, but also for non-specialists. It contains much introductory expository material, and a large number of references. Many unsolved computational and mathematical problems of substantial practical importance are pointed out.

A comprehensive description of macroscopic, microscopic, and radiological methods for the diagnosis of bone diseases. The book presents all the procedures involved in diagnosis, using not only radiological and histological techniques, but also modern immunohistochemical and scintigraphic methods. Succinct and well-structured therapeutic recommendations are provided for an array of bone diseases, making this a practice-oriented reference work for pathologists, radiologists, rheumatologists, and orthopedists.

Goals of the Book Overthelast thirty yearsthere has been arevolutionindiagnostic radiology as a result oftheemergenceofcomputerized tomography (CT), which is the process of obtaining the density distribution within the human body from multiple x-ray projections. Since an enormous variety of possible density values may occur in the body, a large number of projections are necessary to ensure the accurate reconstruction oftheir distribution. There are other situations in which we desire to reconstruct an object from its projections, but in which we know that the object to be recon structed has only a small number of possible values. For example, a large fraction of objects scanned in industrial CT (for the purpose of nonde structive testing or reverse engineering) are made of a single material and so the ideal reconstruction should contain only two values: zero for air and the value associated with the material composing the object. Similar as sumptions may even be made for some specific medical applications; for example, in angiography ofthe heart chambers the value is either zero (in dicating the absence of dye) or the value associated with the dye in the chamber. Another example arises in the electron microscopy of biological macromolecules, where we may assume that the object to be reconstructed is composed of ice, protein, and RNA. One can also apply electron mi croscopy to determine the presenceor absence ofatoms in crystallinestruc tures, which is again a two-valued situation."

The 1999 international conference on Information Processing in Medical Imaging (IPMI '99) was the sixteenth in the series of biennial meetings and followed the successful meeting in Poultney, Vermont, in 1997. This year, for the rst time, the conference was held in central Europe, in the historical Hungarian town of Visegr ad, one of the most beautiful spots not only on the Danube Bend but in all Hungary. The place has many historical connections, both national and international. The castle was once a royal palace of King Matthias. In the middle ages, the Hungarian, Czech, and Polish kings met here. Recently, after the summit meeting of reestablished democracies in the area, it became a symbol for the cooperation between central European countries as they approached the European Union. It was thus also symbolic to bring IPMI, in the year of the 30th anniversary of its foundation, to this place, and organize the meeting with the close cooperation of local and traditional western organizers. It also provided a good opportunity to summarize brie?y a history of IPMI for those who were new to the IPMI conference. This year we received 82 full paper submissions from all over the world. Of these, 24 were accepted as oral presentations. These were divided into 6 sessions. In spite of our e orts, it was found to be impossible to make these sessions fully balanced and homogeneous.

The definite treatment ofaortic disorders goes back to the resection ofisthmic coarctation by Clarence Crafoord in 1944. It took another third of a century until all portionsofthe aortabecameaccessible to highly standardized surgery. This progress, delayed as it was in relation to most other cardiovascular in- terventions, depended on the availability of safe protective methods for the heart and central nervous system, of reliable vascular grafts and atraumatic instruments, novel suture material and tissue adhesives. The development ofadvanced surgical techniques went hand in hand with, and depended upon, the emergence of proper diagnostic tools, starting with aortography andultimately culminating inCT-scanning, transesophageal echo- cardiography and magnetic resonance imaging. These tools now allow for the rational planning and conductofany aortic intervention which may be surgical or, more recently, catheter-guided. Nienaber's and Fattori's new book aptly is addressing both the diagnos- tic procedure as well as the treatment of aortic disease. The authors are well known experts in the fields of advanced diagnostics of aortic pathology, both spearheading a remarkably innovative group of aortic interventionalists as well. On account of their expertise, their chapters are able to answer any question rising in conjunction with these subjects.

In this small volume experts provide succinct answers to freuqently asked questions about the properties and handling of X-ray contrast media. It is an excellent reference source for all using these agents. Basic information is given on the development, toxicology, pharmacology, pharmacokinetics and clinical testing of contrast agents and in question and answer form on the problems and adverse events which may be associated with them. Most of the book is concerned with the most frequently used iodinated X-ray agents but there are useful sections on the magnetic resonance and ultrasound echo enhancing agents which are assuming greater and increasing importance. This book will be of interest to both radiologists and clinicians.

Introduces both optical microscopy and medical imaging with an emphasis on recurring themes such as resolution and contrast to reinforce understanding. Includes many illustrations and boxed material that give more detailed explanations. Features hands-on activities and experiments. Provides end-of-chapter problems for self-study. Offers supplementary online materials including a solutions manual.

Medical Image Databases covers the new technologies of biomedical imaging databases and their applications in clinical services, education, and research. Authors were selected because they are doing cutting-edge basic or technology work in relevant areas. This was done to infuse each chapter with ideas from people actively investigating and developing medical image databases rather than simply review the existing literature. The authors have analyzed the literature and have expanded on their own research. They have also addressed several common threads within their generic topics. These include system architecture, standards, information retrieval, data modeling, image visualizations, query languages, telematics, data mining, and decision supports. The new ideas and results reported in this volume suggest new and better ways to develop imaging databases and possibly lead us to the next information infrastructure in biomedicine. Medical Image Databases is suitable as a textbook for a graduate-level course on biomedical imaging or medical image databases, and as a reference for researchers and practitioners in industry.

Market: Engineers and researchers in neural networks, image processing, audio/speech, and medical imaging. This book begins by focusing on the theoretical aspect of pattern recognition and introduces an integrated pattern recognition paradigm, which combines preprocessing, low dimensional signal characterization, feature optimization, and mapping classifier architecture to good features in a seamless fashion. Later, the authors reinforce the concepts of pattern recognition and prediction with challenging real- world examples, encompassing financial market prediction, image coding, active and passive sonar processing, chaos modeling, and intelligent product design.

Non-Invasive Imaging of Atherosclerosis is a primer, reference and review of some of the key features of current activities in the field of atherosclerosis. The Editors' goal is to provide material and stimulating ideas to basic scientists and clinical researchers in order to extend the application of vascular imaging and to further develop methods suitable for investigation of the arterial wall. The first section presents current knowledge about pathology, vascular mechanics and compensatory mechanisms active during atherogenesis. It explores the early lesion, complications of plaques and early detection of plaques. Section II reviews several key methodological issues of B-mode ultrasound imaging and some of the most current data. Quantitative B-mode ultrasound is an established non-invasive tool widely used in large epidemiologic studies and interventional clinical trials of atherosclerosis. The last section addresses the most promising areas of development in vascular imaging. This involves new techniques to evaluate the atherosclerotic bed, to follow atheroma progression/regression and to evaluate vascular mechanics in atherosclerotic arteries. The last chapter places the application of non-invasive imaging in perspective.

14 contributions present mathematical models for different imaging techniques in medicine and nondestructive testing. The underlying mathematical models are presented in a way that also newcomers in the field have a chance to understand the relation between the special applications and the mathematics needed for successfully treating these problems. The reader gets an insight into a modern field of scientific computing with applications formerly not presented in such form, leading from the basics to actual research activities.

This book constitutes the refereed proceedings of the 15th International Conference on Information Processing in Medical Imaging, IPMI'97, held in Poultney, Vermont, USA, in June 1997.
The 27 revised full papers presented were selected from a total of 96 submissions; also included are 31 poster presentations. The book is divided into topical sections on shape models and matching, novel imaging methods, segmentation, image quality and statistical character of measured data, registration/mapping, statistical models in functional neuroimaging, and MR analysis and processing.