Longitudinal Endosonography

The introduction of endosonographically guided fine-needle biopsy has led to increasing use of longitudinal scans in the endosonographic diagnosis of tumors and other diseases of the upper gastrointestinal tract as well as of the pancreas. In this handbook, experts concentrate primarily on practical aspects of using endosonography with longitudinal scans. Examination techniques, interpretation of the ultrasound images, and normal anatomy with important guiding structures are demonstrated by means of 3D CT images and the corresponding endosonographic images. In addition, pathological endosonographic findings and the current status of diagnosis using fine-needle biopsy are described.

Longitudinal endoscopic ultrasound (EUS) is now widely accepted as a powerful tool for the exploration of organs outside of the gastrointestinal lumen. The first step in the learning of longitudinal EUS is the first understanding the human anatomic structure on ultrasound. This book provides both the beginner and the middle level endosonographists with a comprehensive guide to anatomic structures in the upper abdomen in longitudinal EUS. Through the use of numerous colour images and supplemented with online video clips, this book will be a great help in mastering longitudinal EUS. Contents: Essential Anatomy of the Upper Abdomen Longitudinal Endoscopic Ultrasound (EUS) for Anatomical Guiding Structures Procedure in Identifying Major Blood Vessels and Scan of Abdominal Organs by EUS Standard Procedures and Useful Tips Learning Materials for Beginners Commentaries to the Online Videos Readership: Gastroenterology fellows and gastroenterologists with interest in endoscopic ultrasound plus beginner and the middle level endosonographists. Keywords: Longitudinal Endoscopic Ultrasound (EUS);Gastrointestinal Lumen;Upper Abdomen;Human Anatomy;ultrasound StructureReview:0

Following the development of gray-scale imaging, real-time scanning, Doppler examination, and high-frequency sonography, endosonography is one of the latest major breakthroughs in the history of diagnostic ultrasound. Although early attempts at inserting ultrasound transducers in natural cavities of the body can be traced back more than two decades, only in the past few years has technology allowed the development and commercialization of effective, easy-to-use endosono scopic probes. Because the transducer can be placed in direct contact with or close to lesions, high frequencies (up to ~2 MHz) can be used, yielding cross-sectional images of unsurpassed resolution. The availability of specially designed intracorporeal probes for specific natural cavities that are routinely explored by conventional (optical) endoscopy or palpation has significantly expanded the diagnostic applications of sonography. Transrectal and transvaginal examinations are now performed routinely in many institutions, and virtually all sonographic equipment manufac turers have in their line of products at least one endorectal and one endovaginal transducer. Most endosonoscopic probes connect to existing scanners, and for radiology departments, the invest ment for transrectal or transvaginal scanning will usually be limited to the purchase of the specific probe. In this book, clinical applications of endosonography (excluding transesophageal echocardio graphy) are covered by European and North American experts. Current equipment and techniques of examination are described in detail to help newcomers get started in the field of endosonography.

Endoscopic ultrasound (EUS) is now considered one of the most essential and cost-effective techniques in the assessment of a wide range of gastrointestinal diseases. A remarkably versatile, minimally invasive procedure, it also calls for a high level of anatomic knowledge and technical prowess. This revised and updated lavishly illustrated volume -- a textbook and atlas in one -- offers medical professionals the most comprehensive overview of EUS available, as well as a wealth of valuable insights from leaders in the field.Features:More than 1000 high-quality imagesLogical, easy-to-use structure, including the requisite anatomy and pathologyStrategies for selecting patients and procedures, including hygiene requirements, informed consent, patient positioning and monitoring, and morePrecise clinical descriptions and valuable tips and techniques for diagnosis and treatmentGuidance on the successful handling of needling and cathetersInsightful discussions of the uses and limitations of evolving techniquesChapters on contrast-enhanced EUS techniques and SonoElastography, new chapters on Hot Spots of Interventional EUS and Portal Hypertension.Accompanying DVD with over 60 video sequences and 30 still images on selected topicsWritten for specialists and trainees in gastroenterology, pneumology, and surgery,Endoscopic Ultrasound -- with its broad scope and up-to-date information -- is essential reading for anyone wishing to explore and exploit the potential of state-of-the-art EUS.

Practical coverage on "how to perform EUS" with written text describing the technique. The book's two sections help you learn to manipulate the endoscope and interpret what you see, and offer clear diagnostic guidance on each condition you may come across.

Technical improvements over the past twenty years have made endos copy the procedure of choice for examination of the hollow organs of the genitourinary and gastrointestinal tracts. The development of electro surgical techniques, laser technology, injection therapy, and a wide variety of other modalities now allow the endoscopist to treat many problems that in the past required open surgery. The simultaneous development of transcutaneous abdominal sonography has had an equally dramatic impact on the practice of gastrointestinal and geni tourinary surgery. The marriage of these proven technologies, known as endoscopic sonography, provides an exciting new modality that promises to further revolutionize the diagnosis and management of many intraabdominal diseases. Endoscopic sonography opens new frontiers by overcoming the primary limitations of its parent technologies. Fiberoptic endoscopy is limited by the inability to see beyond the luminal surface, this is particularly important when considering neoplastic disease because depth of wall invasion is a key factor in determining treatment. The limiting factor in transcutaneous sonography is the distance between the transducer and the target organ. With endoscopic sonography, the transducer is placed in close proximity to the target organ. This allows the use of high frequency waves (greater than 5 MHz), which provide better tissue resolution and eliminates the image distortion caused by overlying structures.

Endoscopic ultrasound (EUS) is now considered one of the most essential and cost-effective techniques in the assessment of a wide range of gastrointestinal diseases. A remarkably versatile, minimally invasive procedure, it also calls for a high level of anatomic knowledge and technical prowess. This lavishly illustrated volume -- a textbook and atlas in one -- offers medical professionals the most comprehensive overview of EUS available, as well as a wealth of valuable insights from diverse leaders in the field. Features: More than 900 up-to-date, superior-quality images Clear, step-by-step instructions for all current procedures and techniques Logical, easy-to-use structure throughout, including the requisite anatomy and pathology Strategies for selecting patients and procedures, including hygiene requirements, informed consent, patient positioning and monitoring, and more Precise clinical descriptions and valuable tips and techniques for diagnosis and treatment Guidance on the successful handling of needling and catheters Insightful discussions of the uses and limitations of evolving techniques Chapters on contrast-enhanced EUS techniques and SonoElastography Designed specifically for specialists and trainees in gastroenterology, pneumology, and surgery, Endoscopic Ultrasound -- with its broad scope and up-to-date information -- is also essential reading for anyone wishing to explore and exploit the potential of state-of-the-art EUS.