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.

Ultrasound is quickly becoming the technique of choice in the measurement of bone density. Proving cheaper and more portable than previous techniques, and also having the advantage of not using ionizing radiation, it is likely that the use of various ultrasound systems will become increasingly widespread in clinical practice. This book is a comprehensive review of the systems currently available, preceded by a summary of the basic science of ultrasound and concluding with a section on clinical studies, trials and experience in a number of countries. Likely future developments are also discussed, bringing the book completely up to date.

This second edition of "Radiology of Osteoporosis" has been fully updated so as to represent the current state-of-the-art. It provides a comprehensive overview of osteoporosis, the pathologic conditions that give rise to osteoporosis, and the complications that are frequently encountered. A collection of difficult cases involving pitfalls is presented, with guidance to their solution. The book will be invaluable to all with an interest in osteoporosis.

Quantitative ultrasound (QUS) of bone is a relatively recent research field. The research community is steadily growing, with interdisciplinary branches in acoustics, medical imaging, biomechanics, biomedical engineering, applied mathematics, bone biology and clinical sciences, resulting in significant achievements in new ultrasound technologies to measure bone, as well as models to elucidate the interaction and the propagation of ultrasonic wave in complex bone structures. Hundreds of articles published in specialists journals are accessible from the Web and from electronic libraries. However, no compilation and synthesis of the most recent and significant research exist. The only book on QUS of bone has been published in 1999 at a time when the propagation mechanisms of ultrasound in bone were still largely unknown and the technology was immature. The research community has now reached a critical size, special sessions are organized in major international meetings (e.g., at the World Congress of Biomechanics, the annual meetings of the Acoustical Society of America, International Bone Densitometry Workshop, etc...). Consequently, the time has come for a completely up to date, comprehensive review of the topic. The book will offer the most recent experimental results and theoretical concepts developed so far and is intended for researchers, graduate or undergraduate students, engineers, and clinicians who are involved in the field. The central part of the book covers the physics of ultrasound propagation in bone. Our goal is to give the reader an extensive view of the mathematical and numerical models as an aid to understand the QUS potential and the types of variables that can be determined by QUS in order to characterize bone strength. The propagation of sound in bone is still subject of intensive research. Different models have been proposed (for example, the Biot theory of poroelasticity and the theory of scattering have been used to describe wave propagation in cancellous bone, whereas propagation in cortical bone falls in the scope of guided waves theories). An extensive review of the models has not been published so far. We intend in this book to present in details the models that are used to solve the direct problem and strategies that are currently developed to address the inverse problem. This will include analytical theories and numerical approaches that have grown exponentially in recent years. Most recent experimental findings and technological developments will also be comprehensively reviewed.

Osteoporosis is a serious problem worldwide, and its significance is continuing to increase as the world population grows and ages. Osteoporosis and Bone Densitometry Measurements provides a comprehensive review of the latest research on this potentially devastating condition. The book encompasses prevention, diagnosis, and therapy, providing state of the art information on each aspect. A wide range of topics are discussed, including differentiation between acute and chronic, benign and malignant vertebral fractures; the value of the WHO FRAX tool in patient evaluation; the roles of dual-energy X-ray absorptiometry, quantitative computed tomography, quantitative ultrasound, and high-resolution imaging; and the use of kyphoplasty and vertebroplasty to treat vertebral compression fractures. All chapters are written by acknowledged experts in the field.

The second edition of Dr. Sydney Lou Bonnick’s text Bone Densitometry in Clinical Practice is an expansion of her highly regarded first edition, which has provided the bone densitometry community with simply the best, most accurate, and most precisely written resource in our field. Dr. Bonnick has applied her very careful and exact scientific approaches to expand and improve on her widely regarded initial text. In addition to the chapters in the first edition on the science of bone densitometry and its clinical appli- tion, this text has new chapters and a CD-ROM that come at a very critical time in our field. The clinical use of bone densitometry is increasing exponentially as more professional societies have endorsements and guidelines on the application of bone densitometry in the assessment and management of osteoporosis. The recent endorsement of population screening by the US Preventive Services Task Force (USPSTF) has now provided g- ernmental validation to this technology, whose proper use Dr. Bonnick has pioneered. In a new chapter, Dr. Bonnick compares the similarities and differences in the recent gui- lines from the USPSTF and the National Osteoporosis Foundation, American Assoc- tion of Clinical Endocrinologists, American College of Obstetrics and Gynecology, and the North American Menopause Society.

Sydney Lou Bonnick, MD, FACP, and Lori Ann Lewis, MRT, CDT, have updated and expanded their highly praised Bone Densitometry for Technologists to reflect the latest standards and developments in the field. Here radiologic technologists, nurse practitioners, physician assistants, and dedicated densitometry technologists can find new guidelines for bone density testing, new therapies for osteoporosis, and new treatment guidelines for osteoporosis, as well as new chapters on pediatric densitometry, body composition assessments, and the use of skeletal morphometry in diagnosis and fracture risk prediction.

The practice of diagnostic radiology has become increasingly complex, with the use of numerous imaging modalities and division into many subspecialty areas. It is becoming ever more difficult for subspecialist radiologists, general radiologists, and residents to keep up with the advances that are occurring year on year, and this is particularly true for less familiar topics. Failure to appreciate imaging pitfalls often leads to diagnostic error and misinterpretation, and potential medicolegal problems. This textbook, written by experts from reputable centers across the world, systematically and comprehensively highlights the pitfalls that may occur in diagnostic radiology. Both pitfalls specific to different modalities and techniques and those specific to particular organ systems are described with the help of numerous high-quality illustrations. Recognition of these pitfalls is crucial in helping the practicing radiologist to achieve a more accurate diagnosis.