<p>This book provides a review of state-of-art technological developments in applied ultrasonics with a focus on recent advances in ultrasonic research, covering metrological applications, non-destructive evaluation, sensing, devices, and physics, as well as medical diagnosis and treatment. The first part of this book focuses on the physics of acoustic waves, and their propagation and addresses viscoelasticity, as well as metrological applications including laser ultrasonics. Part two reviews some recent developments of importance to industrial applications, whilst the final part introduces developments in biomedical applications.\nThe book will be an essential resource and instructional guide to the field for a broad range of students, researchers, and engineers. The reader can readily understand the direction of research in the subject, appreciate the numerous possibilities of using ultrasound, and grasp the potential applications of the phenomenon and current challenges.\nKey Features:\nEncompasses fundamental physics and applications. Provides state-of-art technological coverage in applied ultrasonics Reviews recent research and applications in science, medicine and industrial settings. Provides an introductory overview for each chapter. Transfers key technologies, helping the reader to quickly acquire measurement skills.</p>

Ultrasonics: Physics and Applications

Science & Math

Hasegawa, Hideyuki

Ogi, Hirotsugu

Matsukawa, Mami

Choi, Pak-Kon

Nakamura, Kentaro

Experiments, Instruments & Measurement

IOP Publishing Ltd.

<p>In this monograph, an accurate ultrasonic method for measurement of small motion and deformation of biological tissue is described. In the displacement estimation based on the phase change of echoes, the displacement estimates are biased when the center frequency of the RF echo changes. Such an apparent change in the center frequency could be caused by the interference of echoes from scatterers. To reduce the influence of the center frequency variation on the estimation of motion and deformation, an error correcting function, which does not require the assumption that the center frequency distributions in 2 different frames are the same, was introduced. As a result, the proposed method provides better strain estimates in comparison with conventional phase-sensitive correlation methods. This monograph also shows examples of applications of this method to measurement of small motion and deformation of biological tissues. This method can be applied to measurement of elasticity of dynamic tissues, such as the artery. Also, elastic properties of static tissues can be also measured by combining with actuation using the acoustic radiation force.</p>

Ultrasonic Methods for Measurement of Small Motion and Deformation of Biological Tissues for Assessment of Viscoelasticity (Biomedical & Nanomedical Technologies)

Kanai, Hiroshi

Technology

Momentum Press

In this monograph, an accurate ultrasonic method for measurement of small motion and deformation of biological tissue is described. In the displacement estimation based on the phase change of echoes, the displacement estimates are biased when the center frequency of the RF echo changes. Such an apparent change in the center frequency could be caused by the interference of echoes from scatterers. To reduce the influence of the center frequency variation on the estimation of motion and deformation, an error correcting function, which does not require the assumption that the center frequency distributions in 2 different frames are the same, was introduced. As a result, the proposed method provides better strain estimates in comparison with conventional phase-sensitive correlation methods. This monograph also shows examples of applications of this method to measurement of small motion and deformation of biological tissues. This method can be applied to measurement of elasticity of dynamic tissues, such as the artery. Also, elastic properties of static tissues can be also measured by combining with actuation using the acoustic radiation force.

Ultrasonic Methods for Measurement of Small Motion and Deformation of Biological Tissues for Assessment of Viscoelasticity (Biomedical & Nanomedical Technologies-concise Monograph)

Engineering & Transportation

Engineering

Momentum Pr

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