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Author: Monica Lupsor-Platon Publisher: BoD – Books on Demand ISBN: 1789857090 Category : Medical Languages : en Pages : 148
Book Description
Elastography, the science of creating noninvasive images of mechanical characteristics of tissues, has been rapidly evolving in recent years. The advantage of this technique resides in the ability to rapidly detect and quantify the changes in the stiffness of soft tissues resulting from specific pathological or physiological processes. Ultrasound elastography is nowadays applied especially on the liver and breast, but the technique has been increasingly used for other tissues including the thyroid, lymph nodes, spleen, pancreas, gastrointestinal tract, kidney, prostate, and the musculoskeletal and vascular systems. This book presents some of the applications of strain and shear-wave ultrasound elastography in hepatic, pancreatic, breast, and musculoskeletal conditions.
Author: Monica Lupsor-Platon Publisher: BoD – Books on Demand ISBN: 1789857090 Category : Medical Languages : en Pages : 148
Book Description
Elastography, the science of creating noninvasive images of mechanical characteristics of tissues, has been rapidly evolving in recent years. The advantage of this technique resides in the ability to rapidly detect and quantify the changes in the stiffness of soft tissues resulting from specific pathological or physiological processes. Ultrasound elastography is nowadays applied especially on the liver and breast, but the technique has been increasingly used for other tissues including the thyroid, lymph nodes, spleen, pancreas, gastrointestinal tract, kidney, prostate, and the musculoskeletal and vascular systems. This book presents some of the applications of strain and shear-wave ultrasound elastography in hepatic, pancreatic, breast, and musculoskeletal conditions.
Author: Richard G. Barr Publisher: Thieme ISBN: 163853165X Category : Medical Languages : en Pages : 565
Book Description
A comprehensive, easy-to-use guide on elastography from a Who’s Who of international experts This practical guide is a compilation of firsthand expertise from leading authorities around the world on the use of ultrasound elastography. The stiffness or softness of the imaged tissue derived from elastography provides accurate radiologic diagnosis for disease processes including cancer, inflammation, and fibrosis. It is an efficacious and accurate diagnostic imaging modality that helps avoid invasive biopsies. The first two chapters cover basic fundamental principles of elastography, with subsequent chapters exploring pathology-specific utilization. The authors cover the extensively validated and implemented use of elastography for diffuse liver disease, and diseases of the breast andthyroid gland. They also discuss the potential benefits and limitations for the prostate, spleen, pancreas, kidneys, musculoskeletal system, salivary glands, lymph nodes, and testes. The book concludes with a chapter on potential future applications of this ever-evolving technology. Key Highlights Discussion of key differences between strain elastography and shear wave elastography by individual organ systems Clinical pearls on how to accurately perform elastography and tips for avoiding false-positive or false-negative results Case studies elucidate the targeted use of elastographic findings by specific pathology Illustrations in the breast and liver chapters demonstrate precise transducer techniques MRI elastography as an emerging and safe assessment tool, primarily for the diagnosis of liver disease, with emergent potential for additional organs This book provides key knowledge on visualizing quantifiable differences in tissue elasticity and applying this data to improved treatment strategies for diverse pathologies. It is essential reading for radiologists, sonographers, and imaging technicians.
Author: Sudhakar K. Venkatesh Publisher: Springer ISBN: 1493915754 Category : Medical Languages : en Pages : 143
Book Description
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.
Author: Armin Schneider Publisher: Academic Press ISBN: 0128032316 Category : Technology & Engineering Languages : en Pages : 592
Book Description
Biomedical Engineering in Gastrointestinal Surgery is a combination of engineering and surgical experience on the role of engineering in gastrointestinal surgery. There is currently no other book that combines engineering and clinical issues in this field, while engineering is becoming more and more important in surgery. This book is written to a high technical level, but also contains clear explanations of clinical conditions and clinical needs for engineers and students. Chapters covering anatomy and physiology are comprehensive and easy to understand for non-surgeons, while technologies are put into the context of surgical disease and anatomy for engineers. The authors are the two most senior members of the Institute for Minimally Invasive Interdisciplinary Therapeutic Interventions (MITI), which is pioneering this kind of collaboration between engineers and clinicians in minimally invasive surgery. MITI is an interdisciplinary platform for collaborative work of surgeons, gastroenterologists, biomedical engineers and industrial companies with mechanical and electronic workshops, dry laboratories and comprehensive facilities for animal studies as well as a fully integrated clinical "OR of the future". Written by the head of the Institute of Minimally Invasive Interdisciplinary Therapeutic Intervention (TUM MITI) which focusses on interdisciplinary cooperation in visceral medicine Provides medical and anatomical knowledge for engineers and puts technology in the context of surgical disease and anatomy Helps clinicians understand the technology, and use it safely and efficiently
Author: Richard G. Barr Publisher: Thieme ISBN: 1604068531 Category : Medical Languages : en Pages : 601
Book Description
This comprehensive reference covers the principles and techniques used in performing breast elastography, an innovative imaging technology that can dramatically reduce the need for biopsies. The book begins with an introduction of the techniques, followed by sections on how to perform each technique and methods of interpretation, and concludes with more than 60 detailed case studies. Key Features: Includes case studies covering a wide range of breast pathologies and illustrating the use of all available elastography techniques to help radiologists obtain the best images for each pathology Covers all methods of breast elastography, including sheer wave and strain wave Contains more than 200 high-quality color images that demonstrate how to perform each technique Breast Elastography is an essential reference for all radiologists, residents and fellows, and sonographers involved in breast imaging and evaluation.
Author: Christoph F. Dietrich Publisher: MDPI ISBN: 3038979104 Category : Medical Languages : en Pages : 144
Book Description
The comparison between methods, evaluation of portal hypertension and many other questions are still open issues in liver elastography. New elastographic applications are under evaluation and close to being used in clinical practice. Strain imaging has been incorporated into many disciplines and EFSUMB guidelines are under preparation. More research is necessary for improved evidence for clinical applications in daily practice. The Special Issue published papers on recent advances in development and application of Ultrasound Elastography.
Author: Alina Popescu Publisher: ISBN: Category : Electronic books Languages : en Pages : 0
Book Description
2D shear wave elastography is a technique embedded in ultrasound machines which allows the interrogation of the tissue by acoustic radiation force impulses induced into the tissues by focused ultrasonic beams and captures the propagation of resulting shear waves in real time. Elasticity is displayed using a color-coded image superimposed on a B-mode image, and at the same time, a quantitative estimation of liver stiffness (LS) can be performed in a certain region of interest (ROI). The published data showed a real value of this method for liver stiffness estimation in patients with chronic hepatitis. It has the following advantages: it is integrated into standard ultrasound systems; it is a real-time elastographic method; and it is also feasible in patients with ascites and with large and adjustable size of the ROI that will be evaluated.
Author: Mahmoud Derakhshan Horeh Publisher: ISBN: Category : Languages : en Pages : 87
Book Description
Elastography is a convenient and affordable method for imaging mechanical properties of tissue, which are often correlated with pathologies. An emerging novel elastography technique applies an external acoustic radiation force (ARF) to generate shear-wave in the tissue which are then tracked using ultrasound imaging. Accurate tracking of the small tissue motion (referred to as tissue displacement) is a critical step in shear-wave elastography, but is challenging due to various sources of noise in the ultrasound data. I formulate tissue displacement estimation as an optimization problem and propose two computationally efficient approaches to estimate the displacement field. The first algorithm is referred to as dynamic programming analytic minimization (DPAM), which utilizes first order Taylor series expansion of the highly nonlinear cost function to allow for its efficient optimization. DPAM was previously proposed for quasi-static elastography and I extend the approach to shear-wave elastography. The second algorithm is a novel technique that exploits second-order Taylor expansion of the non-linear cost function. I call the new algorithm as second-order analytic minimization elastography (SESAME). I compare DMAP and SESAME to the standard normalizedCross Correlation (NCC) approach in the context of estimating displacement and elasticity of the medium for shear-wave elastography (SWE). The results of micrometer-order displacement estimation in a uniform simulation phantom illustrate that SESAME outperforms DPAM, which in turn outperforms NCC in terms of signal to noise ratio (SNR) and jitter. In addition, the relative difference between true and reconstructed shear modulus (averaged over several excitations focusing at different focal depths with different scatterers realizations at each depth) is approximately 3.41%, 1.12% and 1.01%, respectively, for NCC, DPAM and SESAME. The performance of the proposed methods is also assessed with real data acquired using a tissue-mimicking phantom, wherein, in comparison to NCC, DPAM and SESAME improve the SNR of displacement by 7.6 dB and 9.5 dB, respectively. Experimental results on a tissue-mimicking phantom also show that shear modulus reconstruction is more accurate with DPAM and SESAME in comparison with NCC.
Author: Dana Stoian Publisher: BoD – Books on Demand ISBN: 1789846374 Category : Medical Languages : en Pages : 292
Book Description
Elastography is a recent application of conventional ultrasound evaluation with recognized benefits in the field of malignancy risk assessment and disease evolution prediction. This book examines the use of this technique in non-alcoholic fatty liver disease (NAFLD), alcohol-induced liver disease, liver fibrosis, chronic hepatitis, portal hypertension, and hepatic tumors. It also discusses the use of elastography in the pediatric population for thyroid disease and hepatic, or musculoskeletal diseases. Nonabdominal elastography applications are also presented, such as in breast pathology, thyroid diffuse and nodular disease, renal chronic disease, parathyroid hyperplasia and chronic musculoskeletal impairment.
Author: Monica Lupsor-Platon
Author: Monica Lupsor-Platon
Author: Wim Verlinden
Author: Richard G. Barr
Author: Sudhakar K. Venkatesh
Author: Armin Schneider
Author: Richard G. Barr
Author: Christoph F. Dietrich
Author: Alina Popescu
Author: Mahmoud Derakhshan Horeh
Author: Dana Stoian