Lo studio delle malformazioni fetali rappresenta uno degli argomenti piu complessi nell ambito della medicina fetale.

Negli ultimi anni il ruolo della risonanza magnetica (RM) nell inquadramento diagnostico delle malformazioni fetali isolate e complesse e divenuto sempre piu importante, attestandosi come esame di III livello.

Tale incremento e stato possibile grazie all implementazione tecnologica delle apparecchiature di RM e quindi allo sviluppo di sequenze veloci e ultra veloci.

La RM, solitamente effettuata dopo un ecografia di II livello a partire dalla 19a settimana di gravidanza, puo quindi rappresentare, in casi selezionati, un importante completamento diagnostico nella valutazione di quadri malformativi complessi e nella programmazione di interventi terapeutici nella vita intrauterina e nel postnatale. E necessario sottolineare l importanza di centri di riferimento dedicati e la presenza di un team multidisciplinare per la corretta gestione dei piccoli pazienti.

Il volume e suddiviso in tre parti. Dopo una prima parte piu tecnica, viene trattata l anatomia fetale in RM con attenzione all evoluzione dei singoli organi; la terza parte analizza invece i principali quadri malformativi con particolare riguardo al distretto encefalico, toracico e addominale. Il testo e arricchito da un estesa documentazione iconografica.

Questolibro vuole essere di rapida e facile consultazione e rappresentare un punto di partenza per il radiologo e il neuroradiologo, nonche per tutti gli specialisti interessati alla medicina fetale e in particolare alla risonanza magnetica.

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L'ecografia e utile nella valutazione di patologie articolari in pazienti con malattia reumatica e, oltre che nella diagnosi, e efficace nel monitoraggio con power Doppler della sinovite, con una sensibilita superiore rispetto all'esame clinico. L'ecografia ad alta risoluzione, integrata con la tecnica power Doppler, e anche in grado di individuare le anomalie entesopatiche, l'erosione ossea e il coinvolgimento del tendine. L'obiettivo dell'opera e di presentare la tecnica d'esame, i progressi ecografici nella patologia reumatica muscoloscheletrica e il ruolo diagnostico della ecografia nella patologia reumatica articolare. L'iconografia e arricchita con immagini integrate di ecografia, radiologia convenzionale, TC e RM.

Ultrasound technology is enabling anesthesiologists to perform regional anesthetic procedures with greater confidence in accuracy and precision. With improvements in visualizing neural anatomy and needle movement, ultrasound guidance improves patient safety and operating room efficiency. This book offers a detailed, stepwise approach to this technique, identifying pearls and pitfalls to ensure success. Topics are organized into four chapters. The first chapter provides the basic principles behind ultrasound guided regional anesthesia, setting a strong context for the rest of the book. The last three cover the nerve blocks: upper extremity, lower extremity, and chest, trunk and spine. Each nerve block is comprehensively explained, divided up by introduction, anatomy, clinical applications, technique, alternate techniques, complications, and pearls. This new edition includes discussions of 6 new blocks: the suprascapular block, axillary nerve block for shoulder surgery, fascia iliaca block, lateral femoral cutaneous block, and the adductor canal block. This edition also contains over 40 new procedural and imaging figures, an appendix on what blocks to perform for specific surgeries, and new information on choice of local anesthetic agent, types of catheters and practical ultrasound physics to help improve scanning. Ultrasound Guided Regional Anesthesia provides authoritative, in-depth coverage of ultrasound guided regional anesthesia for the anesthesiologist beginning to use ultrasound and makes a great reference for the more seasoned physician.

This fourth edition has been fully revised to provide radiologists with the most up to date ultrasound images and information for diagnosing and treating disorders in various crucial organs. Fifteen sections present more than 3500 high resolution sonographic images in the eye and orbit, face, salivary gland, gastrointestinal system, prostate, genitalia, peripheral chest, and much more. The book has been completely rewritten and includes new chapters on face, sperm transport system, ambiguous genitalia and intersex. More than 70% of the images have been replaced with new images using 3D multiplanar tomographic ultrasound imaging. Each topic covers both common and less common pathologies, and CT and MRI images are also included to enhance understanding. Key Points Fully revised, fourth edition providing more than 3500 high resolution sonographic images of small parts Includes new chapters on face, sperm transport system, ambiguous genitalia and intersex More than 70% of images replaced by 3D multiplanar tomographic ultrasound imaging Previous edition (9780071485838) published in 2007

Il ruolo che la diagnostica per immagini riveste nella pratica clinica quotidiana e di giorno in giorno sempre piu rilevante: il moderno radiologo deve possedere un approfondita conoscenza della clinica e dell anatomia patologica e la capacita di correlazione con i reperti radiologici, al fine di poter cogliere anche i minimi segni e reperti rilevabili.

Inoltre, la vastita delle attuali conoscenze richiede non solo una preparazione radiologica generica, ma anche e sempre piu approfondimenti sub-specialistici: cio conduce alla formazione di radiologi d apparato e in alcuni casi d organo, in grado di utilizzare al meglio tutte le tecniche attualmente disponibili, cosi da percorrere correttamente l iter diagnostico, insieme ai colleghi specialisti di altre branche mediche.

Nel presente manuale, che raccoglie 100 casi ben selezionati e significativi, gli Autori dimostrano come, partendo dalla storia clinica del paziente e sfruttando al meglio le tecniche di imaging, sia possibile giungere alla diagnosi: in tal modo, si riduce il ricorso a procedure invasive e a indagini inutili e/o superflue. Grazie al taglio pratico e alla concisa trattazione del testo, i giovani radiologi e gli specializzandi hanno a disposizione un valido e rapido strumento di conoscenza del corretto approccio, approfondimento e aggiornamento della disciplina."

High intensity focused ultrasound (HIFU) is an increasingly popular physical tool with a wide range of applications in medicine. One of the drivers of this advancement is the development of ultrasound phased arrays, which, although more complex and costly than the traditional single focused bowl transducers used in earlier studies, are capable of electronically controlled dynamic focusing. Such systems not only steer a single focus without movement of the array itself, but can also generate several foci simultaneously and create focal regions with complex configurations. This book addresses the design, research and development, and medical applications of both relatively small HIFU arrays that can be inserted into body cavities (so called linear arrays) and larger two dimensional arrays for extracorporeal use. A key safety issue in the design of these arrays is to ensure that only targeted tissue is exposed to high levels of acoustic intensity and in this regard, this book highlights the advantages of designs involving spatial randomization of array elements to reduce the level of potentially dangerous grating lobes. In particular, phased arrays with a random distribution of elements are discussed and compared to regular arrays, and methods for calculating ultrasound fields generated by different phased arrays including the generation of multiple simultaneous foci and focal regions with complex geometrical shapes are presented. A detailed discussion of the influence of the dimensions, number, and shape of individual elements, errors in phase setting at the elements, and the frequency modulation of the signal on the quality of the intensity distributions produced by random arrays is included.

Ultrasound plays an integral part in the diagnosis and management of many gynaecological conditions; indeed, ultrasound forms part of the RCOG's mandatory training programme for doctors wishing to specialise in obstetrics and gynaecology. This book will be of use to both trainees and those already in clinical practice looking for a user-friendly reference guide. The use of ultrasound in gynaecology goes well beyond simple picture recognition: a skilful gynaecological sonographer will bring together scan findings and the clinical scenario to enhance patient care. This leads to targeted investigations and strategies for intervention. This book covers all aspects of the use of ultrasound in the fields of gynaecology and early pregnancy, with the contents including: postmenopausal bleeding; adnexal masses; pelvic pain; reproductive medicine; miscarriage; ectopic pregnancy; and ovarian cysts.

Multiple pregnancies are associated with higher risks for both mother and babies. Women with multiple pregnancies have an increased risk of miscarriage, anemia, hypertensive disorders, haemorrhage, and postnatal illness. These pregnancies are more likely to need an operative delivery, and maternal mortality is generally 2.5 times that of singleton births. Fetuses are at increased risk for anatomic and genetic anomalies, growth abnormalities, prematurity, and several physiological problems related to monochorionicity. This book provides a much needed, up-to-date guide to the management of multiple pregnancies. Presented with a uniform approach to all chapters, information is easily navigable, evidence-based, and highly practical. Heavily illustrated, particularly with ultrasound images - the cornerstone of management of multiple pregnancies - this book will appeal to obstetricians and specialists in maternal-fetal medicine, midwives and ultrasonographers and will improve outcomes for mothers and babies.

This book clearly explains the basics of cranial ultrasonography in the neonate, from patient preparation through to screening strategies and the classification of abnormalities. The aim is to enable the reader consistently to obtain images of the highest quality and to interpret them correctly. Essential information is provided both on the procedure itself and on the normal ultrasound anatomy. The standard technique is described and illustrated, and emphasis is placed on the value of supplementary acoustic windows. Attention is also drawn to maturational changes in the neonatal brain and to the limitations of cranial ultrasonography. Frequently occurring abnormalities are described and classifications for these abnormalities are provided. A new classification for neonatal cerebellar hemorrhages is introduced. In this third edition, all ultrasound images have beena replaced, reflecting the improvements in image quality. An entirely new chapter is devoted to Doppler ultrasonography. The illustrations have been improved and new illustrations were added. The reader will have access to highly informative videos on the cranial ultrasound procedure, available online via SpringerLink. The compact design of the book makes it an ideal and handy reference that will guide the novice in understanding the essentials of the technique while also providing useful information for the more experienced practitioner.

The new edition of this manual provides radiologists with the latest advances in ultrasonography. Beginning with basic principles of ultrasound and instruments, the following sections discuss the imaging of different soft tissues including the liver, gallbladder and biliary tract, pancreas, spleen, gastrointestinal system, reproductive tract and more. Images are correlated with organ specific disorders. The final chapter covers assessment of foetal wellbeing. This third edition has been thoroughly revised and includes new chapters on basic sonography of soft tissue and infertility. The comprehensive text is enhanced by nearly 300 illustrations to assist learning. Key Points Third edition, providing latest advances in ultrasonography Fully revised with new chapters on basic sonography of soft tissue and infertility Correlates images with organ specific disorders Previous edition published in 2002

This book provides a pedagogical guide to dermatologic ultrasound. As in any imaging field, dermatologic ultrasound is dynamic, and the area expands with the release of new technology. This textbook is a mix of the essential knowledge necessary to start and a detailed update to the dermatologic ultrasound field. This book is divided into three sections: The Requisites, Ultrasound Features of Common Dermatologic Conditions, and Practicalities. The first section details the basic information needed in dermatologic ultrasound, including technical recommendations and dermatologic concepts. The second covers major dermatologic conditions and their ultrasound presentation, including benign and malignant skin tumors, pediatric conditions, nail entities, inflammatory conditions, infections and infestations, and aesthetics. The final section covers tips for reporting and interventional dermatologic ultrasound procedures.Chapters present substantial clinical, ultrasonographic, and histologic correlation, including algorithms to help discriminate different conditions. The book additionally includes 150 self-assessment questions (CME) in the backmatter, multiple key points, a plethora of state-of-the-art images with probes that go from 18 to 70 MHz, and ultrasound videos. This is a must guide for physicians, residents, and students in radiology, dermatology, plastic surgery, and any professional who wants to brush up on the dermatologic ultrasound field.

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.

This book provides a practically applicable guide to the use of ultrasound in the care of acutely and critically ill patients. It is laid out in two sections. The first section attempts to take a comprehensive approach to specific systems of examination taking an organ focused approach covering techniques including Focussed Assessment with Sonography for Trauma (FAST) scanning and venous sonography. The second section presents a range of specific cases enabling the reader to develop an understanding of how to apply these methodologies effectively into their day-to-day clinical practice. Ultrasound in the Critically Ill: A Practical Guide describes how to use ultrasound technologies in day-to-day clinical practice. Therefore, it is an ideal resource for all trainee and practicing physicians who utilize these technologies on a day-to-day basis.

A brand new series from Oxford University Press, the Oxford Clinical Imaging Guides are specifically designed to help doctors master imaging techniques. Each guide explains the principles and practice of using imaging in an easy-to-read, highly-illustrated, and authoritative manner. Acute and Critical Care Echocardiography is the first practical guide dedicated to helping doctors use transthoracic echocardiography to manage acutely and critically ill patients. The book provides readers with a grounding in theoretical evidence-based aspects of critical care echocardiography. Expert authors help the reader apply this knowledge on a daily basis via clear step-by-step techniques and a focus on problem-solving and safe practice. The book is mapped to the new accreditation syllabus in Advanced Critical Care Echocardiography set by the British Society of Echocardiography, ensuring that it is relevant to professional standards and teaches doctors exactly what they need to know. Self-assessment questions help readers retain what they have learned and revise for exams. An essential day-to-day reference and interactive guide, this unique book should never be far from the critical care medic's side.

The field of musculoskeletal ultrasound has rapidly advanced in the past several years. The scanning protocols in particular have become more sophisticated and more standardized. Now in its fully revised and expanded second edition, this volume is the definitive resource on musculoskeletal ultrasound for the beginning practitioner. A new, first of its kind chapter has been added on ultrasound in Sports Medicine Emergencies. This expands the book topic from using POCUS as an office tool to its use on the athletic field to assist with emergencies. This new and detailed chapter includes the acute evaluation of an eye injury, lung, Morrison's pouch, IV access, fluid status, soft tissue and DVT protocols. Conforming to an identical chapter format, all previous chapters have been expanded and updated. Images have been reformatted to larger, clearer versions in addition to probe placement images going from black and white to full color. This book is divided into five different sections. It begins with chapters on the upper extremity such as the hand and wrist. The next section focuses on the lower extremity such as the foot and knee. The third section is nerve based and describes brachial plexus and major peripheral nerves. The fourth section covers Sports Medicine POCUS Emergencies. The last section details specific procedures such as I&D of abscess and hydrodissection. Each chapter follows a standard structure. They open with an approach to the patient, which contains the main pathology and clinical exam. The surface anatomy and ultrasound-based anatomy are then addressed. A discussion on patient positioning and probe settings follows. Pearls, pitfalls and red flags offer tips and pointers on scanning techniques as well as pathology not to be missed. Finally, each chapter is closed out with a summary report. Basics of Musculoskeletal Ultrasound, 2e is a must-have reference for residents, fellowship directors, fellows and primary care physicians as well as athletic trainers, physician assistants, physical therapists and ultrasound technicians. It is also an excellent resource for participants of the AMSSM MSK ultrasound courses.

As a hot topic in ultrasound medicine, peripheral nerve ultrasound has its wide applications in clinical field. This book firstly introduces the anatomy of peripheral nerves, method and normal sonograms for peripheral nerve scanning. In the following chapters, common and typical cases of peripheral nerves diseases are presented with useful clinical information and relevant data, for example, ultrasound, MRI, clinical operation and pathology results. At the end of each disease, video with detailed explanation of diagnostic procedure and 2-3 bullet points in practical differential diagnosis are included to help readers taking notes. This book will be a valuable reference for physicians in ultrasound, anesthetists, neurologists, pain specialists, and practitioners interested in related field.

Following the issuance of new radiological protection recommendations in Publication 103 (ICRP, 2007), the Commission released, in Publication 110 (ICRP, 2009), the adult male and female voxel-type reference computational phantoms to be used for the calculation of the reference dose coefficients for both external and internal exposures. While providing more anatomically realistic representations of internal anatomy than the older stylised phantoms, the voxel phantoms have their limitations, mainly due to voxel resolution, especially with respect to small tissue structures (e.g. lens of the eye) and very thin tissue layers (e.g. stem cell layers in the stomach wall mucosa and intestinal epithelium). This report describes the construction of the adult mesh-type reference computational phantoms (MRCPs) that are the modelling counterparts of the Publication 110 voxel-type reference computational phantoms. The MRCPs include all source and target regions needed for estimating effective dose, even the m-thick target regions in the respiratory and alimentary tract, skin, and urinary bladder, assimilating the supplemental stylised models. The MRCPs can be directly implemented into Monte Carlo particle transport codes for dose calculations, i.e. without voxelisation, fully maintaining the advantages of the mesh geometry.

This publication aims to provide guidance on radiological protection in the new technology of cone beam computed tomography (CBCT). CBCT is now used widely by specialists who have little or no training in radiological protection. This publication provides recommendations on radiation dose management directed at different stakeholders, and covers principles of radiological protection, training, and quality assurance aspects. As with previous ICRP publications, the Commission hopes that imaging professionals, medical physicists, and manufacturers will use the guidelines and recommendations provided in this publication for implementation of the Commission's principle of optimisation of protection of patients and medical workers, with the objective of keeping exposures as low as reasonably achievable, taking into account economic and societal factors, and consistent with achieving the necessary medical outcomes.

The purpose of this Publication is to provide guidance on radiological protection in industries involving NORM. These industries may give rise to multiple hazards and the radiological hazard is not necessarily dominant. The industries are diverse and may involve exposure to people and the environment where protective actions need to be considered. In some cases, there is a potential for significant routine exposure to workers and members of the public if suitable control measures are not considered.

This issue of Radiologic Clinics of North America focuses on Ultrasound, and is edited by Dr. Jason M. Wagner. Articles will include: Thyroid Ultrasound; Ultrasound of Cervical Lymph Nodes; Ultrasound of Right Upper Quadrant Pain; Ultrasound of Diffuse Liver Disease; Liver Ultrasound in Patients at Risk for Hepatocellular Carcinoma; Ultrasound of Renal Masses; Ultrasound of Pelvic Pain in the Nonpregnant Woman; Ultrasound of the 1st Trimester Pregnant Woman; Scrotal Ultrasound; Carotid Ultrasound; Vertebral Artery Ultrasound; Ultrasound in Sports Medicine; Ultrasound of Lumps, Bumps, and Soft-tissue Fluid Collections; and more!