Design of Temperature Data Acquisition System for the Study of Ultrasound Imaging Techniques PDF Download
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Author: Dan Cross
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
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Author: Dan Cross
Publisher:
ISBN:
Category :
Languages : en
Pages : 110
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Author: C. K. Chow
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Author: Thomas L. Szabo
Publisher: Academic Press
ISBN: 012396542X
Category : Science
Languages : en
Pages : 829
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Book Description
Diagnostic Ultrasound Imaging provides a unified description of the physical principles of ultrasound imaging, signal processing, systems and measurements. This comprehensive reference is a core resource for both graduate students and engineers in medical ultrasound research and design. With continuing rapid technological development of ultrasound in medical diagnosis, it is a critical subject for biomedical engineers, clinical and healthcare engineers and practitioners, medical physicists, and related professionals in the fields of signal and image processing. The book contains 17 new and updated chapters covering the fundamentals and latest advances in the area, and includes four appendices, 450 figures (60 available in color on the companion website), and almost 1,500 references. In addition to the continual influx of readers entering the field of ultrasound worldwide who need the broad grounding in the core technologies of ultrasound, this book provides those already working in these areas with clear and comprehensive expositions of these key new topics as well as introductions to state-of-the-art innovations in this field. - Enables practicing engineers, students and clinical professionals to understand the essential physics and signal processing techniques behind modern imaging systems as well as introducing the latest developments that will shape medical ultrasound in the future - Suitable for both newcomers and experienced readers, the practical, progressively organized applied approach is supported by hands-on MATLAB® code and worked examples that enable readers to understand the principles underlying diagnostic and therapeutic ultrasound - Covers the new important developments in the use of medical ultrasound: elastography and high-intensity therapeutic ultrasound. Many new developments are comprehensively reviewed and explained, including aberration correction, acoustic measurements, acoustic radiation force imaging, alternate imaging architectures, bioeffects: diagnostic to therapeutic, Fourier transform imaging, multimode imaging, plane wave compounding, research platforms, synthetic aperture, vector Doppler, transient shear wave elastography, ultrafast imaging and Doppler, functional ultrasound and viscoelastic models
Author: Jayanth Kandukuri
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Ultrasound has been widely used in many fields, such as nondestructive examination and medical imaging. Ultrasound is mostly characterized by its pressure and, dynamic pressure wave can be considered to be the foundation of ultrasound physics and imaging techniques. It is thus important for understanding ultrasound pressure properties to that of ultrasound intensity. Moreover, there are many applications that require mainly characterizing ultrasound pressure field (instead of intensity field alone). Therefore, reconstruction of an ultrasound pressure field is highly desirable not only for education but also for research. There may be some commercially available systems that can be used for 2- or 3-D reconstruction of an ultrasound pressure field based on a needle-shaped hydrophone such as AIMS system from Onda Inc. However, they are usually very expensive (>tens of thousands US dollars) and unaffordable for many educators, professionals and researchers (even for those researchers whose main research streams are not ultrasound but need to measure a dynamic pressure field for some reasons). However, they are usually very expensive (>tens of thousands US dollars) and unaffordable for many educators, professionals and researchers (even for those researchers whose main research streams are not ultrasound but need to measure a dynamic pressure field for some reasons). In addition, this system can be used to conduct VI ultrasound imaging, and study microbubble-enhanced ultrasound imaging. Although the principle of the developed system is straightforward, engineering challenges exist in the development of both hardware and software. Therefore, we would like to share our design, experience and results to the community to make the system affordable and provide multi-functional system for research and education. Second part of study focuses around understanding the working of High intensity focused ultrasound (HIFU) that is used for delivering high pressure thereby increaseing the localize temperature. Many investigations have been conducted in the past to understand thermal effects of HIFU procedures using many thermal sensitive sensors which are used to characterize the temperature distribution at its focus. The most prominent and reliable was the measurement obtained using fine wire thermocouple. In our study we aim at using very short duration excitation of HIFU and study the thermal distribution by varying combination of both power and duration of each burst using one such fine wire thermocouple. We were also able to verify the focal size and focal volume of the HIFU. Cavitation and viscous heating artifacts that predominantly affect the long duration HIFU investigations have been shown to be absent. Results and discussions have been presented to support our hypothesis.
Author: Pascal Alexander Hager
Publisher:
ISBN: 9783866286498
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 892
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Author: Kenneth Stanley Szajda
Publisher:
ISBN:
Category :
Languages : en
Pages : 318
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Author: Swapnil Dolui
Publisher:
ISBN:
Category : Diagnostic ultrasonic imaging
Languages : en
Pages :
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Book Description
Temperature monitoring plays an important role during thermal therapy. Ultrasound (US) can be used to estimate the temperature, and the current approach is based on detection of the change in instantaneous frequency of reflected US signals along the US axial beam direction. In this thesis, a novel US-based temperature estimation technique has been proposed that improves on the current method by filtering the reflected US signals with Gaussian-weighted n th-order Hermite (GHn) polynomial function. In vitro experiments were conducted by slowly heating a series of tissue-mimicking phantom materials that were fabricated using hydrogel that were embedded with different-sized US scatterers. Overall, our US-based temperature mapping technique exhibited a 17.4% improvement in measurement accuracy compared to an established US imaging approach.
Author: Di Ye
Publisher:
ISBN:
Category : Temperature measurements
Languages : en
Pages : 238
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Author: Majid Nasser-Moghaddassi
Publisher:
ISBN:
Category :
Languages : en
Pages : 372
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Book Description
