Download or read book Real time Ultrasound Imaging in the Abdomen written by M.L. Skolnick and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Real time Ultrasound Imaging in the Abdomen written by M. Leon Skolnick and published by . This book was released on 1981 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Innovations in Abdominal Ultrasound written by Norbert Heyder and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Ultrasonography of the Abdomen written by S.N. Hassani and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Innovations in Abdominal Ultrasound written by Norbert Heyder and published by Springer. This book was released on 1992-10-21 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Ultrasound of the Gastrointestinal Tract written by Giovanni Maconi and published by Springer Science & Business Media. This book was released on 2007-01-04 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Clinical Emergency Radiology written by J. Christian Fox and published by Cambridge University Press. This book was released on 2017-03-16 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: A clinician's visual guide to choosing image modality and interpreting plain films, ultrasound, CT, and MRI scans for emergency patients.
Download or read book Abdominal Ultrasound written by Carol A. Mittelstaedt and published by . This book was released on 1987 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diseases of the Abdomen and Pelvis 2018 2021 written by Juerg Hodler and published by Springer. This book was released on 2018-03-20 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Real time Ultrasound written by Royal J. Bartrum and published by . This book was released on 1983 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: A solid, knowledgeable introduction to ultrasound techniques by two expert ultrasonographers. Practical and easy-to-read, the text departs from the traditional disease orientation and organizes clinical discussions from the viewpoint of the ultrasonic appearance. Beginning with the picture, the authors work backward toward the possible pathologic processes that may have produced it. Amply illustrated with excellent images of real-time scans and useful diagrams.
Download or read book Abdominal Ultrasound written by Morimichi Fukuda and published by Igaku-Shoin Medical Publishers. This book was released on 1997-12-31 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook is a guide to real-time ultrasound of abdominal organs. It provides the reader with an understanding of scanning techniques, normal anatomy, ultrasound appearances, pathologic findings, and common problems in interpreting images. It contains over 300 scans with detailed legends explaining pathologic findings and arrows pointing out diagnostically significant features of each image. The first two chapters discuss the capabilities and limitations of real-time ultrasound, the instrumentation and techniques, and the basic principles of interpretation. Subsequent chapters focus on specific abdominal organs. Also included is a chapter on endoscopic sonography of gastrointestinal disorders.
Download or read book Medical Image Computing and Computer Assisted Intervention MICCAI 2008 written by Dimitris Metaxas and published by Springer. This book was released on 2008-10-30 with total page 1161 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 11th International Conference on Medical Imaging and Computer Assisted Intervention, MICCAI 2008, was held at the Helen and Martin Kimmel Center of New York University, New York City, USA on September 6–10, 2008. MICCAI is the premier international conference in this domain, with - depth papers on the multidisciplinary ?elds of biomedical image computing and analysis, computer assisted intervention and medical robotics. The conference brings together biological scientists, clinicians, computer scientists, engineers, mathematicians, physicists and other interested researchers and o?ers them a forum to exchange ideas in these exciting and rapidly growing ?elds. The conference is both very selective and very attractive: this year we - ceived a record number of 700 submissions from 34 countries and 6 continents, fromwhich258papers were selectedfor publication,whichcorrespondsto a s- cess rate of approximately 36%. Some interesting facts about the distribution of submitted and accepted papers are shown graphically at the end of this preface. The paper selection process this year was based on the following procedure, which included the introduction of several novelties over previous years. 1. A ProgramCommittee (PC) of 49 members was recruited by the Program Chairs,to getthenecessarybody ofexpertiseandgeographicalcoverage.All PC members agreed in advance to participate in the ?nal paper selection process. 2. Key words grouped in 7 categories were used to describe the content of the submissions and the expertise of the reviewers.
Download or read book Real time In vivo Reverberation Suppression of Ultrasound Channel Signals Using Convolutional Neural Network written by Leandra Lynn Brickson and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rise in obesity in the US, the population is becoming increasingly at risk of developing ailments such as Type II diabetes, fatty liver disease and non-alcoholic steatohepatitis (NASH). NASH can also develop into hepatic fibrosis and cirrhosis, and lead to an increased chance of hepatocellular carcinoma (HCC). As the outcomes of the obesity epidemic in the US continue to unfold, the ability to effectively survey obese patients for NASH and HCC is imperative. ultrasound is well suited for liver imaging due to the liver's size and location in the abdomen, however there are distinct challenges related to visualizing liver structures due to noise introduced by the increased layers of subcutaneous fat. These layers of fat and their corresponding connective tissues increase phase aberration and diffuse reverberation noise in ultrasound images. This work aims to reduce one of these noise sources, diffuse reverberation. Diffuse reverberation noise occurs when the acoustic wave transmitted from the ultrasound transducer reflects multiple times in the imaging medium before returning. This multi-path scattered signal overlays the signal from single reflections in the deeper tissue, causing a haze over the region that looks similar to speckle. Not only does it decrease the contrast of the ultrasound image, reverberation noise also introduces errors to techniques that rely on radiofrequency (RF) channel signals, such as phase aberration correction, Doppler imaging, sound speed estimation, shear-wave estimation and adaptive beamforming techniques. Though some techniques exist to address reverberation in ultrasound channel signals, each technique has shortcomings that make it impractical to use on the ultrasound scanner in real time, without altering the scanner's hardware. In the past years, publications using neural networks and machine learning have flooded almost every research field that works with quantitative data. These numerous articles show again and again that neural networks are a powerful emerging tool to solve previously difficult problems. They are especially making headway in creating approximation functions for non-linear processes. In the field of medical imaging, neural networks have shown great success in automated diagnosis, improved resolution and more. This dissertation explores the use of fully convolutional neural networks (CNNs) to reduce reverberation noise in abdominal ultrasound imaging while preserving its use as a real-time imaging modality. In order to be used for a pre-processing filter for other techniques outside of imaging, the reverberation noise is reduced on the RF channel signals. The initial stages of this work begin by training a 3D convolutional neural network on a simple training dataset simulated using Field II pro, a linear acoustics simulator. The resulting neural network produced qualitative and quantitative reduction of reverberation on an in-vivo test dataset of the carotid artery and the thyroid. When developed, results from this neural network were very promising on their reverberation reduction performance, especially in metrics that indicated the presence of reverberation. However, the neural network architecture was computationally heavy, and could only be run at 9fps in real-time on an ultrasound scanner. Additionally, this network was not optimized for abdominal imaging, which is the target task of this work. The next stages progressed to focus more on the application of abdominal imaging, and improve the real-time implementation speed. To improve implementation speed, a series of neural network architecture experiments were performed to give similar performance on a light-weight, 2D convolutional neural network with permutations. To improve reverberation reduction, a more physically-accurate fullwave simulation dataset was simulated for training. The resulting neural network was implemented in real time on an ultrasound scanner to give a frame rate of 16 fps. A clinical study was run on 15 volunteers imaging the liver and kidney for neural network evaluation, resulting in improved liver vessel visibility in all selected quantitative metrics across an 85 image test set of liver images. The preservation of aberration and the stability of the network were also assessed.
Download or read book Pediatric Emergency Critical Care and Ultrasound written by Stephanie J. Doniger and published by Cambridge University Press. This book was released on 2014-04-24 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emergency bedside ultrasound assessment is well established for adult patients, but has only recently been introduced into everyday clinical practice for the care of pediatric patients. Pediatric Emergency Critical Care and Ultrasound is a concise, practical text which explains the principles of ultrasound, its diagnostic application in all organ systems and its use as a procedural adjunct. Both well-established and innovative applications are described, assisting the practitioner in incorporating ultrasound into daily practice, facilitating patient care and decreasing radiation exposure. Case studies and abundant illustrations enable the reader to study the appropriate techniques in detail and learn from real examples from the pediatric emergency department and intensive care unit. Pediatric Emergency Critical Care and Ultrasound is the first comprehensive bedside ultrasonography resource focusing on pediatric patients and is essential reading not only for pediatric emergency medicine subspecialists but for all emergency physicians, intensivists/critical care physicians and pediatricians.
Download or read book Ultrasound in Gastroenterology written by Paul A. Dubbins and published by . This book was released on 1994 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume in the series reflects the rapid advances that have occurred in the use of ultrasound in the investigation of gastroenterology diseases.
Download or read book Abdominal Ultrasound written by Jane A. Bates and published by . This book was released on 2004 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: As more and more practitioners are relying on ultrasound as an accepted, safe, and cost-effective diagnostic tool in everyday practice, its use in diagnosing abdominal problems is quickly increasing. This up-to-date edition includes coverage of basic anatomy, technique, and ultrasound appearances, in addition to the most common pathological processes. It serves as both a practical, clinically relevant manual and resource for professionals, as well as an invaluable textbook for students entering the field.
Download or read book Basic Physics of Ultrasonographic Imaging written by N. M. Tole and published by World Health Organization. This book was released on 2005 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume on basic physics of ultrasonographic imaging procedures provides clear and concise information on the physics behind ultrasound examinations in diagnostic imaging. It attempts to present the subject from a simple approach that should make it possible for the target groups to comprehend the important concepts which form the physical basis of ultrasonic imaging. The main target group of this manual is radiological technologists and radiographers working with diagnostic ultrasound in developing countries. Clinicians and nurse practitioners may also find the simple presentation appealing. A conscious effort has been made to avoid detailed mathematical treatment of the subject. The emphasis is on simplicity.
