Ultrasound Tissue Displacement And Tissue Elasticity Imaging PDF Download
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| Author | : Eric Chung Jay Chen |
| Publisher | : |
| Total Pages | : 228 |
| Release | : 1995 |
| Genre | : |
| ISBN | : |
Download Ultrasound Tissue Displacement and Tissue Elasticity Imaging Book in PDF, ePub and Kindle
In this dissertation, we investigate the feasibility of using high frequency ultrasound, to measure tissue motion and tissue elasticity for medical imaging applications. Ultrasound provides a means for non-invasive imaging of soft tissues, providing soft tissue contrast that cannot be achieved using conventional X-ray or tomographic imaging. A two-dimensional correlation search algorithm is used to track local tissue displacements from radio frequency (RF) ultrasound echoes and from digitized ultrasound images. The accuracy of displacement imaging is investigated as a function of various imaging parameters such as ultrasound frequency and target size. Ultrasound elasticity imaging consists of three basic steps: (1) measurement of tissue displacement, (2) estimation of tissue stresses and strains, and (3) recovery of tissue elasticity. Tissue strains and tissue elasticities are obtained from reconstructed tissue displacement fields and experimental measurements of applied stresses. Ultrasound elasticity measurements were compared with independent Instron load cell elasticity measurements. Several examples of tissue displacement imaging of breast tumors in human breast cancer patients and ultrasound elasticity measurements of tissue phantoms (soft gels), and samples of bovine muscle and fat tissue are provided.
| Author | : S. Kaisar Alam |
| Publisher | : Elsevier |
| Total Pages | : 260 |
| Release | : 2019-11-22 |
| Genre | : Science |
| ISBN | : 0128096837 |
Download Tissue Elasticity Imaging Book in PDF, ePub and Kindle
Tissue Elasticity Imaging: Volume One: Theory and Methods offers an extensive treatment of the fundamentals and applications of this groundbreaking diagnostic modality. The book introduces elasticity imaging, its history, the fundamental physics, and the different elasticity imaging methods, along with their implementation details, problems and artefacts. It is an essential resource for all researchers and practitioners interested in any elasticity imaging modality. As many diseases, including cancers, alter tissue mechanical properties, it is not always possible for conventional methods to detect changes, but with elasticity images that are produced by slow tissue deformation or low-frequency vibration, these changes can be displayed. Offers the first comprehensive reference on elasticity imaging Discusses the fundamentals of technology and their limitations and solutions, along with advanced methods and future directions Addresses the technologies and applications useful to both researchers and clinical practitioners Includes an online reference section regularly updated with advances in technology and applications
| Author | : S. Kaisar Alam |
| Publisher | : Elsevier |
| Total Pages | : 256 |
| Release | : 2019-11-27 |
| Genre | : Science |
| ISBN | : 0128096845 |
Download Tissue Elasticity Imaging Book in PDF, ePub and Kindle
Tissue Elasticity Imaging: Volume Two: Clinical Applications offers an extensive treatment of the fundamentals and applications of this groundbreaking diagnostic modality. Techniques and results are presented for the assessment of breast, prostate, heart, liver and thyroid tissues. For each application, details are provided on how to perform each technique, along with methods of interpretation, diagnostic criteria, quality assurance, challenges and case studies. This book is an essential resource for all researchers and practitioners (including scientists, radiologists, urologists, fellows and residents) interested in any elasticity imaging modality. As many diseases, including cancers, alter tissue mechanical properties, it is not always possible for conventional methods to detect changes, but with elasticity images that are produced by slow tissue deformation or low-frequency vibration, these changes can be displayed. Offers the first comprehensive reference on elasticity imaging Discusses the fundamentals of technology and their limitations and solutions, along with advanced methods and future directions Addresses the technologies and applications useful to both researchers and clinical practitioners Includes an online reference section regularly updated with advances in technology and applications
| Author | : Monica Lupsor-Platon |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 148 |
| Release | : 2020-03-04 |
| Genre | : Medical |
| ISBN | : 1789857090 |
Download Ultrasound Elastography Book in PDF, ePub and Kindle
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 | : Yan-Ping Huang |
| Publisher | : CRC Press |
| Total Pages | : 226 |
| Release | : 2015-11-04 |
| Genre | : Medical |
| ISBN | : 1466576294 |
Download Measurement of Soft Tissue Elasticity in Vivo Book in PDF, ePub and Kindle
The product of 20 years of research, this book covers topics in soft tissue elasticity in vivo, from measurement techniques to clinical applications. It provides, for the first time, a single source that systematically introduces the various techniques for in vivo measurement of soft tissue elasticity in an effort to ease the difficulty between lea
| Author | : N. Abraham Cohn |
| Publisher | : |
| Total Pages | : 438 |
| Release | : 1997 |
| Genre | : |
| ISBN | : |
Download An Elasticity Microscope for High Resolution Imaging of Tissue Stiffness Using 50 MHz Ultrasound Book in PDF, ePub and Kindle
| Author | : Ivan Z. Nenadic |
| Publisher | : John Wiley & Sons |
| Total Pages | : 613 |
| Release | : 2019-01-22 |
| Genre | : Technology & Engineering |
| ISBN | : 1119021510 |
Download Ultrasound Elastography for Biomedical Applications and Medicine Book in PDF, ePub and Kindle
Ultrasound Elastography for Biomedical Applications and Medicine Ivan Z. Nenadic, Matthew W. Urban, James F. Greenleaf, Mayo Clinic Ultrasound Research Laboratory, Mayo Clinic College of Medicine, USA Jean-Luc Gennisson, Miguel Bernal, Mickael Tanter, Institut Langevin – Ondes et Images, ESPCI ParisTech CNRS, France Covers all major developments and techniques of Ultrasound Elastography and biomedical applications The field of ultrasound elastography has developed various techniques with the potential to diagnose and track the progression of diseases such as breast and thyroid cancer, liver and kidney fibrosis, congestive heart failure, and atherosclerosis. Having emerged in the last decade, ultrasound elastography is a medical imaging modality that can noninvasively measure and map the elastic and viscous properties of soft tissues. Ultrasound Elastography for Biomedical Applications and Medicine covers the basic physics of ultrasound wave propagation and the interaction of ultrasound with various media. The book introduces tissue elastography, covers the history of the field, details the various methods that have been developed by research groups across the world, and describes its novel applications, particularly in shear wave elastography. Key features: Covers all major developments and techniques of ultrasound elastography and biomedical applications. Contributions from the pioneers of the field secure the most complete coverage of ultrasound elastography available. The book is essential reading for researchers and engineers working in ultrasound and elastography, as well as biomedical engineering students and those working in the field of biomechanics.
| Author | : Sudhakar K. Venkatesh |
| Publisher | : Springer |
| Total Pages | : 143 |
| Release | : 2014-10-01 |
| Genre | : Medical |
| ISBN | : 1493915754 |
Download Magnetic Resonance Elastography Book in PDF, ePub and Kindle
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 | : K. R. Raghavan |
| Publisher | : |
| Total Pages | : 318 |
| Release | : 1994 |
| Genre | : |
| ISBN | : |
Download Inverse and Optimum Drive Problems in Ultrasonic Imaging of Soft Tissue Elasticity Book in PDF, ePub and Kindle
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2001 |
| Genre | : |
| ISBN | : |
Download A Wave Equation Approach to Ultrasound Elastography Book in PDF, ePub and Kindle
Tissue elastography is a field of medical imaging which deals with obtaining images of tissue mechanical properties, in particular tissue elasticity. Every elastography imaging system has three major components: an exciter, an imaging system, and an image processing software module. The principle of operation of these systems is that softer and harder tissues react differently to a mechanical excitation. The imaging system captures images of the tissue as the mechanical exciter deforms the tissue. The image processing software module then computes the tissue motion from the acquired images, and solves an inverse problem to obtain tissue elasticity from tissue displacements. In ultrasound elastography all three components of the displacement are not available, and the measurement is carried out only on the imaging plane. The problem of inversion using partial measurements is an inherently challenging problem. To solve this problem the phase speed is estimated in the first place. This thesis studies the process of estimating tissue elasticity from tissue displacements, using the phase speed estimation. It is shown that, in general, the elasticity cannot be inferred from the phase speed, but under certain boundary and excitation conditions, a relationship exists between the phase speed and the elasticity. However the relationship depends on the boundary and excitation conditions. Based on the developed results, a novel rheometry method is proposed for visco-elastic characterization of tissue samples. To increase the resolution of the elasticity images it is of interest to use higher frequencies of excitation. However the inherent low frame rate of ultrasound systems posed a limitation. A novel high-frame-rate ultrasound system is introduced which is capable of tracking motions of up to 500Hz. The high-frame-rate system is used in conjunction with the inversion algorithms to form an elastography system. The performance of the system is tested experimentally on tissue mi.
