Diagnostic ultrasound is changing dramatically because of the development of a variety of high resolution real-time scanning instruments. Until recently the standard instrument was the articulated arm contact scanner. Real-time scanners were viewed as adjunct instruments for specific and limited pur poses. The roles are reversing with real-time instruments more frequently accepted as the primary diagnostic tool and the contact scanner becoming the ancillary instrument for use mainly for viewing a large field that cannot be scanned with real-time instruments. Two recent editorials stated that real-time instruments were used as the sole diagnostic instrument for between 80% [Cooperberg (2)] and 98% [Bartrum and Crow (1)] of their abdominal examinations. This book introduces the reader to the field of real-time scanning in the abdomen. It presupposes an understanding of basic physical concepts of ultrasound, the appearance of both normal and pathologic conditions as produced by static articulated arm contact scanning, and a familiarity with the techniques of contact scanning. It is designed to acquaint the reader with the spectrum of real-time instrumentation, provide a basic understanding of the physics of ultrasound as related to these instruments, emphasize the special skills required in the use of this equipment, and describe applications of real-time scanning for various parts of the abdomen. While numerous illustrations of both normal and pathologic anatomy are shown, the book is an all-inclusive study of abdominal pathology as demonstrated by real-time imaging.

Since the beginnings of diagnostic ultrasound in the 1950s, each decade has seen significant advances in this technology. Commer cialization of ultrasound occurred during the 1960s with the introduction of many of the clinical uses that are in existence today. The 1970s showed the most dramatic changes with the commercial introduction of gray-scale and real-time ultrasound. In the 1980s many new advances were introduced, including color Doppler, as well as a wide variety of endoluminal approaches, including endorectal, endovaginal and transesophageal. The decade of the 1990s promises even more significant advances with further transducer miniaturization, three-dimensional ultra sound, and the introduction of a variety of ultrasound contrast agents. With such rapid changes occurring, it becomes important to disseminate knowledge in as rapid a fashion as possible, thus it was quite appropriate that a meeting such as this be held to provide an in-depth review of the many new areas of ultrasound imaging that show promise for the future. Emphasis was on the new uses of ultrasound in gastrointestinal diseases. Many of these advances will, of course, also have applications in many other areas of the body. It is hoped that those in attendance will acquire a much broader understanding of where ultrasound is now and where it is headed in the not too distant future.

by Dr. Jan. J. Smulewicz Ultrasound imaging has reached a stage of sophistication where by diagnostic information can be gained without discomfort to the patient and with complete absence of morbidity and mortality. The procedure is quick, safe, noninvasive and in many instances can supersede and obviate more time-consuming procedures requiring catheterization, injection of a contrast material, and radiographic imaging. In obstetrical problems the danger of ionizing radiation to the fetus is eliminated. In debilitated and very ill patients this simple and painless method becomes the procedure of choice. Unique features of ultrasound equipment allow for pinpoint local ization oflesions and direct visual guidance of percutaneous puncture techniques for aspiration and biopsy. The accuracy of ultrasound guided punctures and the absence of side effects make this modality far superior to percutaneous invasive techniques performed with other imaging systems. Renal cyst puncture and amniocentesis are but two of the procedures in which ultrasonic guidance is the method of choice. v Dr. Hassani has throughly explained and carefully explored the wide variety of exam inations available with ultrasound. The large volume of material and the clear interpre- tion makes this book of great interest to all of the medical profession. In addition to the existing methods available for diagnostic in terpretations, this method of noninvasive diagnosis should find its way into every hospital or center where good medical care is provided. JanJ. Smulewicz, M.D.

and User's Guide Abdominal ultrasound examinations are now performed mainly with real-time instrumentation, thereby giving the user tremendous flexi bility in the manner in which the examination is conducted. However, with such flexibility come significant problems as well. Because fields of view are small, and because the operator can readily move the probe anywhere in the abdomen to see structures in a variety of planes and sections, it is relatively easy to become disoriented or to miss significant findings unless the examination protocol is care fully devised. The operator must approach the task of scanning the patient in a logical and organized way that is related to the patient's clinical findings as well as to the findings discovered during the ultra sound examination. This book has been written to assist the operator in performing an organized and directed ultrasound examination by providing in outline form a sequential approach to the scanning' of abdominal organs and regions. This approach has several functions: 1) to indicate the structures within the organ or region that should be scanned; 2) to suggest other regions to examine if abnormalities within the initially imaged structures are detected; and 3) to suggest differential diagnostic possibilities when abnormalities are seen.

Transabdominal ultrasound is accepted in clinical practice as a primary imaging procedure in the diagnostic work-up and follow-up of various disorders of the gastrointestinal tract. This book provides a comprehensive overview of ultrasound in the imaging of acute and chronic inflammatory conditions of the gastrointestinal tract as well as of neoplastic and infectious diseases. All authors are considered authorities in their specific fields, and the book includes many high-quality illustrations.

Since the beginnings of diagnostic ultrasound in the 1950s, each decade has seen significant advances in this technology. Commer cialization of ultrasound occurred during the 1960s with the introduction of many of the clinical uses that are in existence today. The 1970s showed the most dramatic changes with the commercial introduction of gray-scale and real-time ultrasound. In the 1980s many new advances were introduced, including color Doppler, as well as a wide variety of endoluminal approaches, including endorectal, endovaginal and transesophageal. The decade of the 1990s promises even more significant advances with further transducer miniaturization, three-dimensional ultra sound, and the introduction of a variety of ultrasound contrast agents. With such rapid changes occurring, it becomes important to disseminate knowledge in as rapid a fashion as possible, thus it was quite appropriate that a meeting such as this be held to provide an in-depth review of the many new areas of ultrasound imaging that show promise for the future. Emphasis was on the new uses of ultrasound in gastrointestinal diseases. Many of these advances will, of course, also have applications in many other areas of the body. It is hoped that those in attendance will acquire a much broader understanding of where ultrasound is now and where it is headed in the not too distant future.

This open access book deals with imaging of the abdomen and pelvis, an area that has seen considerable advances over the past several years, driven by clinical as well as technological developments. The respective chapters, written by internationally respected experts in their fields, focus on imaging diagnosis and interventional therapies in abdominal and pelvic disease; they cover all relevant imaging modalities, including magnetic resonance imaging, computed tomography, and positron emission tomography. As such, the book offers a comprehensive review of the state of the art in imaging of the abdomen and pelvis. It will be of interest to general radiologists, radiology residents, interventional radiologists, and clinicians from other specialties who want to update their knowledge in this area.

Develop a solid understanding of ultrasound of the abdomen and pelvis with this practical, point-of-care reference in the popular Diagnostic Ultrasound series. Written by leading experts in the field, the second edition of Diagnostic Ultrasound: Abdomen and Pelvis offers detailed, clinically oriented coverage of ultrasound imaging of this complex area and includes illustrated and written correlation between ultrasound findings and other modalities. The most comprehensive reference in its field, this image-rich resource helps you achieve an accurate ultrasound diagnosis for every patient. - Features nearly 15 new chapters that detail updated diagnoses, new terminology, new methodology, new criteria and guidelines, a new generation of scanners, and more - Includes 2,500 high-quality images including grayscale, color, power, and spectral (pulsed) Doppler imaging in each chapter and, when applicable, contrast-enhanced ultrasound; plus new videos and animations online - Discusses new polycystic ovary syndrome (PCOS) criteria, updated pancreatic cyst guidelines, new ovarian cysts recommendations, shear wave elastography for liver fibrosis, and more - Correlates ultrasound findings with CT and MR for improved understanding of disease processes and how ultrasound complements other modalities for a given disease - Covers cutting-edge ultrasound techniques, including microbubble contrast and contrast-enhanced US (CEUS) for liver imaging - Contains time-saving reference features such as succinct and bulleted text, a variety of test data tables, key facts in each chapter, annotated images, and an extensive index