quantitative ultrasound in soft tissues

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Quantitative Ultrasound In Soft Tissues

Author : Jonathan Mamou
ISBN : 9789400769526
Genre : Medical
File Size : 27. 69 MB
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Due to parallel advances in signal processing and computer hardware in the last 15 years, quantitative ultrasound techniques have reached maturity, allowing for the construction of quantitative maps or images of soft tissues. This book will focus on 5 modern research topics related to quantitative ultrasound of soft tissues: - Spectral-based methods for tissue characterization, tissue typing, cancer detection, etc.; - Envelope statistics analysis as a means of quantifying and imaging tissue properties; - Ultrasound elastography for quantifying elastic properties of tissues (several clinical ultrasound scanners now display elastography images); - Scanning acoustic microscopy for forming images of mechanical properties of soft tissues with micron resolution (desktop size scanners are now available); and - Ultrasound computer tomography for breast cancer imaging (new ultrasound tomography systems have been developed and are currently under evaluation clinically).

Bone Quantitative Ultrasound

Author : Pascal Laugier
ISBN : 9400700172
Genre : Medical
File Size : 53. 57 MB
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Quantitative ultrasound (QUS) of bone is a relatively recent research field. The research community is steadily growing, with interdisciplinary branches in acoustics, medical imaging, biomechanics, biomedical engineering, applied mathematics, bone biology and clinical sciences, resulting in significant achievements in new ultrasound technologies to measure bone, as well as models to elucidate the interaction and the propagation of ultrasonic wave in complex bone structures. Hundreds of articles published in specialists journals are accessible from the Web and from electronic libraries. However, no compilation and synthesis of the most recent and significant research exist. The only book on QUS of bone has been published in 1999 at a time when the propagation mechanisms of ultrasound in bone were still largely unknown and the technology was immature. The research community has now reached a critical size, special sessions are organized in major international meetings (e.g., at the World Congress of Biomechanics, the annual meetings of the Acoustical Society of America, International Bone Densitometry Workshop, etc...). Consequently, the time has come for a completely up to date, comprehensive review of the topic. The book will offer the most recent experimental results and theoretical concepts developed so far and is intended for researchers, graduate or undergraduate students, engineers, and clinicians who are involved in the field. The central part of the book covers the physics of ultrasound propagation in bone. Our goal is to give the reader an extensive view of the mathematical and numerical models as an aid to understand the QUS potential and the types of variables that can be determined by QUS in order to characterize bone strength. The propagation of sound in bone is still subject of intensive research. Different models have been proposed (for example, the Biot theory of poroelasticity and the theory of scattering have been used to describe wave propagation in cancellous bone, whereas propagation in cortical bone falls in the scope of guided waves theories). An extensive review of the models has not been published so far. We intend in this book to present in details the models that are used to solve the direct problem and strategies that are currently developed to address the inverse problem. This will include analytical theories and numerical approaches that have grown exponentially in recent years. Most recent experimental findings and technological developments will also be comprehensively reviewed.

Quantitative Ultrasound And Photoacoustic Imaging For The Assessment Of Vascular Parameters

Author : Kristen M. Meiburger
ISBN : 9783319489988
Genre : Technology & Engineering
File Size : 68. 46 MB
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This book describes the development of quantitative techniques for ultrasound and photoacoustic imaging in the assessment of architectural and vascular parameters. It presents morphological vascular research based on the development of quantitative imaging techniques for the use of clinical B-mode ultrasound images, and preclinical architectural vascular investigations on quantitative imaging techniques for ultrasounds and photoacoustics. The book is divided into two main parts, the first of which focuses on the development and validation of quantitative techniques for the assessment of vascular morphological parameters that can be extracted from B-mode ultrasound longitudinal images of the common carotid artery. In turn, the second part highlights quantitative imaging techniques for assessing the architectural parameters of vasculature that can be extracted from 3D volumes, using both contrast-enhanced ultrasound (CEUS) imaging and photoacoustic imaging without the addition of any contrast agent. Sharing and summarizing the outcomes of this important research, the book will be of interest to a broad range of researchers and practitioners in the fields of medical imaging and biomedical engineering.

6th World Congress Of Biomechanics Wcb 2010 1 6 August 2010 Singapore

Author : Chwee Teck Lim
ISBN : 3642145159
Genre : Technology & Engineering
File Size : 45. 53 MB
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Biomechanics covers a wide field such as organ mechanics, tissue mechanics, cell mechanics to molecular mechanics. At the 6th World Congress of Biomechanics WCB 2010 in Singapore, authors presented the largest experimental studies, technologies and equipment. Special emphasis was placed on state-of-the-art technology and medical applications. This volume presents the Proceedings of the 6th WCB 2010 which was hold in conjunction with 14th International Conference on Biomedical Engineering (ICBME) & 5th Asia Pacific Conference on Biomechanics (APBiomech). The peer reviewed scientific papers are arranged in the six themes Organ Mechanics, Tissue Mechanics, Cell Mechanics, Molecular Mechanics, Materials, Tools, Devices & Techniques, Special Topics.

Metabolic Bone Disease And Clinically Related Disorders

Author : Louis V. Avioli
ISBN : 9780080536279
Genre : Medical
File Size : 37. 98 MB
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Metabolic Bone Disease, Third Edition is the new, expanded edition of the classic text, featuring the latest advancements and research information in this fast-moving field. The Third Edition includes the most up-to-date information on molecular mechanisms, basic biology, pathophysiology, and diagnosis and management strategies of metabolic bone disease. Key Features * Edited by "fathers of the field" * An expanded version of a classic AP text * Complete coverage of a fast-growing field

Three Dimensional Simulation Of Quantitative Ultrasound In Cancellous Bone Using The Echographic Response Of A Metallic Pin

Author :
ISBN : OCLC:1051937303
Genre :
File Size : 26. 82 MB
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Degenerative discopathy is a common pathology that may require spine surgery. A metallic cylindrical pin is inserted into the vertebral body to maintain soft tissues and may be used as a reflector of ultrasonic wave to estimate bone density. The first aim of this paper is to validate a three-dimensional (3-D) model to simulate the ultrasonic propagation in a trabecular bone sample in which a metallic pin has been inserted. We also aim at determining the effect of changes of bone volume fraction (BV/TV) and of positioning errors on the quantitative ultrasound (QUS) parameters in this specific configuration. The approach consists in coupling finite-difference time-domain simulation with X-ray microcomputed tomography. The correlation coefficient between experimental and simulated speed of sound (SOS)—respectively, broadband ultrasonic attenuation (BUA)—was equal to 0.90 (respectively, 0.55). The results show a significant correlation of SOS with BV/TV (R = 0.82), while BUA values exhibit a nonlinear behavior versus BV/TV. The orientation of the pin should be controlled with an accuracy of around 1° to obtain accurate results. The results indicate that using the ultrasonic wave reflected by a pin has a potential to estimate the bone density. SOS is more reliable than BUA due to its lower sensitivity to the tilt angle.

Die Arthroskopie Des Kniegelenks

Author : H.-R. Henche
ISBN : 9783662005835
Genre : Medical
File Size : 24. 48 MB
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Neuromuscular Ultrasound E Book

Author : Francis Walker
ISBN : 9781437737769
Genre : Medical
File Size : 76. 35 MB
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Neuromuscular Ultrasound demonstrates the use of ultrasound as an alternative to electrodiagnosis in the evaluation of neuromuscular disorders through detailed descriptions and clear illustrations. Drs. Francis Walker and Michael S. Cartwright discuss techniques for visualizing muscles and nerves without painful testing for better patient compliance and more efficient diagnosis. Color illustrations, pearls for the clinician, and ultrasound videos online at www.expertconsult.com, ensure that you’ll be able to apply this technology effectively in your practice. Access the fully searchable text online at www.expertconsult.com, along with ultrasound videos that demonstrate ultrasound evaluation in real time. Diagnose and manage your patients more quickly and easily by visualizing muscles and nerves without painful testing. Master the nuances of using ultrasound through the visual instruction of clear images and illustrations. Minimize patient discomfort while maximizing optimal patient evaluation with a practical focus that covers using ultrasound as a screening tool, provides clinical pearls, and includes comparisons to electrodiagnosis. Apply the full range of ultrasound applications, including interventional uses (such as ultrasound-guided botulinum toxin and steroid injections), ultrasound of polyneuropathies (often found in diabetics), and more.

Ultraschalldiagnostik In Der Gastroenterologie

Author : Francis S. Weill
ISBN : 9783642697319
Genre : Medical
File Size : 74. 40 MB
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In Vivo Quantitative Ultrasound Imaging And Scatter Assessments

Author : Zheng Feng Lu
ISBN : WISC:89052290780
Genre :
File Size : 89. 35 MB
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