Diseases once believed to be confined to the tropics, such as parasitic, mycobacterial, fungal, bacterial, and viral infections are still a major cause of mortality and moribidity in the tropics, yet can affect the developed world in an era of increased global travel and migration. Neuroimaging technique developments over the last several decades have helped clinicians better understand and diagnose these conditions. Experts from tropical countries share their experiences regarding tropical disorders, some of which are rare in the western world, but possible to appear in patients and not readily recognized by specialists not familiar with these diseases.

Topics in this issue include: Relevance of neuroimaging in the diagnosis and management of tropical neurologic disorders; Pathology of Tropical Diseases; Viral Infections of the Central Nervous System; Central Nervous System Tuberculosis; Parasitic diseases of nervous system; Neuroimaging in Post-infectious Demyelination and Nutritional Disorders of the Central Nervous System; CNS Fungal Infections in the Tropics; Neuroimaging Epilepsy in the Tropics; Neuroimaging in Cranio-Vertebral Anomalies as seen in Tropics; Vascular Brain Pathologies; Neurobrucellosis; Hirayama Disease; Transverse Myelitis; and Pyomyositis.

Ultrasound is used frequently as the modality of choice for vascular imaging.? It's unique ability to demonstrate blood flow make it particularly effective.? Reviewed in this issue are the US applications in the imaging of the heart, kidneys, and liver.? Also covered are imaging of US for imaging of the carotid artery and in deep vein thrombosis.? Lastly an article highlighting ways to optimize Doppler US is included.

Dr. Leonard Swischuk has revised his outstanding work on imaging the cervical spine in children. He draws upon his extensive experience to provide practitioners with an insightful approach to pediatric cervical spine injuries. The text covers developmental anatomy, normal variants, congenital anomalies, abnormalities of the dens, trauma, and miscellaneous abnormalities of the cervical spine. The book has several strengths that appeal to radiology residents, such as its succinct overview of the topic and helpful reference lists that guide readers to additional resources. Dr. Swischuk illustrates conditions he discusses with excellent plain film examples that help residents identify cases they are likely to encounter during board exams and in practice. Accompanying CT and MR images clarify and qualify the findings. Dr. Swischuk's direct writing style makes the complex content highly accessible, providing imaging residents with an invaluable introduction to pediatric cervical spine radiology.

This issue provides an overview of anatomy for the practicing radiologist using MR.? Neuroanatomy is covered in separate articles on the brain, neck, spine, and skull base.? Body imaging is reviewed in articles on chest, abdomen, breast, and pelvis, and finally, the musculoskeletal system is thoroughly displayed by articles on shoulder, elbow, wrist and hand, knee, and ankle and foot.? Long bones of the upper and lower extremities are reviewed in separate articles as well.

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.

This issue provides a solid foundation for general radiologists in the imaging of pediatric patients suspected of having cancer.? Reviewed in this issue is imaging for CNS and cardiopulmonary and thoracic tumors; tumors of the liver, spleen, and pancreas; and pelvic and bone tumors, as well as leukemia and Lymhoma.

Breast sonography is commonly used to evaluate mammographic and palpable abnormalities, and this issue covers all of the current applications currently in use. Sonography also plays a role in screening for breast cancer and in evaluating the extent of disease in the breast and the regional lymph nodes. This issue also reviews the use of ultrasound to perform biopsies, guide catheters, and deliver radiation therapy.

PET imaging has become an essential part of radiation therapy for cancer patients. Leading off the issue are articles on clinical applications and technical aspects. Following those are reviews of the use of PET in the treatment for lung cancer, gynecologic malignancies, GI and pancreatic tumors, and brain tumors, lymphoma, and head and neck malignancies. The final article addresses advances in hybrid imaging in planning of radiation therapy.

Because of its portability, speed, and ease of use, ultrasound (US) is the most commonly used imaging modality in the ER.? This issue reviews the uses of US for obstetric and gynecologic presentations.? Gastrointestinal, abdominal, and genitourinary applications of US in the ER are quite common.? The use of US as guidance for ER procedures is also covered in this issue.

This issue provides an overview of the latest advances in imaging the fetus and pregnant patient using ultrasound. Reviewed in this issue are the use of US for screening of musculoskeletal, facial, and cardiac abnormalities. Planning for complicated deliveries, imaging of twins, and detecting growth abnormalities are just some of the other topics covered by this issue.

Topics covered in this issue are: Basic principles of Diffusion Imaging; Diffusion MR Imaging: An Important Tool in the Assessment of Brain Tumors; Diffusion MR imaging of Acute Ischemic Stroke; Diffusion Imaging in Demyelinating Diseases; Diffusion Imaging in Brain Infection; Diffusion Imaging in Brain Trauma; Diffusion Imaging in the Neonate Brain; Diffusion MR Imaging for Monitoring Treatment Response; Assessment of Brain Development; Future Horizons in Diffusion Imaging of the Brain.

Topics include: Imaging of Ischemic Stroke; Hemorrhagic Stroke and Non-traumatic Intracranial Hemorrhage; Acute Neuro-Interventional Therapies; Orbital and Intracranial Complications of Sinusitis; Traumatic Brain Injury; Central Nervous System Infections; Facial Trauma: What the Surgeon Wants to Know; Intracranial Hypo- and Hypertension; Seizures; Pediatric Central Nervous System Emergencies; Spine Emergencies; Infections and Inflammatory Processes of the Neck.

The clinical implications of obesity have pervaded several specialties since treatments include medical and surgical intervention. In this issue, Dr. Thompson has created an issue that addresses topics of concern to endoscopists: important concerns in the endoscopic unit, presurgical evaluation, postoperative care, sedation, and endoscopic management of common complications. Further, special articles are included on endoscopic revisions to failed gastric bypass as well as reimbursement and regulatory issues.

In the later stages of gestation, fetal functions undergo increasing change and development, preparing the fetus for the transition to its postnatal environment. Rapid maturation is witnessed in breathing, swallowing, sensory functions, sleep, and many other processes, with corresponding behavioral changes. By 35 to 40 weeks of gestation, fetuses are capable of living ex utero without support, but it is increasingly appreciated that even infants born at between 35 and 36 weeks can suffer long-term consequences. This book, which complements the author's previous volume on development of normal fetal movements during the first 25 weeks of gestation, discusses in detail the full range of behavioral phenomena observed during the final 15 weeks of gestation, with careful analysis of their mutual relationships. A key feature is the outstanding photographic material, difficult to obtain at this late stage, and the instructive graphs that are also included. The information provided will alert clinicians to deviations from the norm and to physiologic phenomena that can turn pathologic in infants born prematurely.

The first book to cover the groundbreaking development and clinical applications of Magnetic Resonance Elastography, this book is essential for all practitioners interested in this revolutionary diagnostic modality. The book is divided into three sections. The first covers the history of MRE. The second covers technique and clinical applications of MRE in the liver with respect to fibrosis, liver masses, and other diseases. Case descriptions are presented to give the reader a hands-on approach. The final section presents the techniques, sequence and preliminary results of applications in other areas of the body including muscle, brain, lung, heart, and breast.

This issue of Neurosurgery Clinics will focus on Functional Imaging. Guest Editors Alexandra Golby and Peter Black will divide the issue into three parts: Technique, Neurological Functions and Clinical Applications, and Special Neurosurgical Situations.

Musculoskeletal injuries are an unfortunate byproduct of an active population.? Therefore imaging of these injuries is essential for the treatment, rehabilitation, and return to play.? This issue reviews topics such as pediatric upper and lower extremity injuries, skiing and snow boarding injuries, overhead throwing injuries, spine injuries, and hip injuries.

Articles in this issue include: MRI of Liver Fat; Cirrhosis, Hepatitis, and Fibrosis; Benign Focal Liver Lesions; Hepatocellular Carcinoma; Diffusion-weighted Imaging and Metastases; Perfusion Imaging: Concepts and Application; Functional MR imaging of Liver: Parametric assessment beyond morphology; MRCP and Biliary Tumors; Current MRCP Techniques for Evaluation of? Biliary Disorders; MRI of the Hepatic Vasculature; Liver Iron, MRI assessment (pitfalls & clinical importance); Sequence Optimization and Recognition of Artifacts; Imaging at Higher Field Strength: 3T versus 1.5T; Liver Tumors: Radiological-Pathological Correlation; Tentative: (Molecular) Spectroscopy.

Find information fast on the most frequently requested radiographic projections! Merrill's Pocket Guide to Radiography, 15th Edition summarizes essential information for more than 150 radiography projections in a spiral-bound format designed for quick reference in the clinical environment. Clear instructions explain how to position patients and body parts, and an optimal radiograph is included for each projection. From noted medical imaging educator Jeannean Hall Rollins, this easy-to-carry handbook guides you through everything from perfect positioning to perfect exposures. Bulleted step-by-step instructions show how to position the patient and body part for frequently requested radiography projections. More than 150 projections are each presented in a two-page spread, and include information on patient position, part position, central ray angulation, collimation, KVp values, and a photograph of a properly positioned patient. Diagnostic-quality radiograph for each projection demonstrates the result the radiographer is trying to achieve. Computed Radiography information allows the radiographer to make the subtle adjustments necessary to obtaining optimal CR results. Exposure technique chart for every projection helps reduce the need for repeat radiographs and improves overall image quality. Abbreviations and external landmarks are listed on the inside front cover and inside back cover for quick reference. Compensating filter information is included for those projections where filters are used. Section dividers with tabs make it easier to find the beginning of each section. NEW! Updated digital radiographs provide greater contrast resolution for improved visualization of pertinent anatomy. NEW! Thoroughly revised content reflects the latest American Registry of Radiologic Technologists (ARRT) standards. NEW! Updated positioning photos show current digital imaging equipment and technology. NEW! Full-color design emphasizes the key points on each page, enhancing your study of radiographic positioning and procedures.

Ultrasound is a modality with broad applications in the imaging of the genitourinary tract.? Reviewed are the uses of US imaging the kidneys, prostate, scrotum, and bladder.? Also included are reviews of fetal genitourinary abnormalities, urinary tract infection, and tuberculosis.? The issue is rounded out with articles on contrast agents and on US-guided interventions.

Imaging of the breast can be one of the most challenging tasks in all of radiology.? This issue not only covers all of the modalities (plain film, multislice CT, MRI, US, and nuclear medicine and molecular imaging it also provides discussions on the controversy regarding when women should be screened, the costs involved in breast imaging, and the appropriate use of screening.

Cutting edge information for all surgeons on the latest imaging techniques Topics will include basic principles, imaging for breast, thyroid/parathyroid, pancreatic/biliary, active gastrointestinal bleeding, and cervical spine; Hollow Viscous Imaging for SBO--fluoroscopy vs CT; CT Colonoscopy/Virtual Colonoscopy; Ultrasound for Central line, IVC filter placement and for diagnosis and treatment of femoral pseudoaneurysms; CTA For AAA; FAST--including Pericardial evaluation; Imaging for Blunt Carotid and Arterial Injury Screening; CT for Chest, Abdomen, Pelvis; PET Scans; and Bariatic Surgery and Postoperative Imaging, and more

This issue includes every subject relevant to neuroradiology that one may expect to encounter in a general emergency radiology practice. The most important concepts in emergent brain, spine, head & neck imaging, as well as pediatric nonaccidental trauma are reviewed, and the issue provides an excellent starting point for learning the fundamentals of emergency neuroradiology and can serve as a reference for those wishing to reinforce their current knowledge base.