NDLI: Computer simulation of forward wave propagation in soft tissue

Content Provider	IEEE Xplore Digital Library
Author	Varslot, T. Taraldsen, G.
Copyright Year	1986
Abstract	A method for simulating forward wavefront propagation in heterogeneous tissue is discussed. The intended application of this method is for the study of aberration produced when performing ultrasound imaging through a layer of soft tissue. A one-way wave equation that permits smooth variation in all acoustically important variables is derived. This equation also describes tissue exhibiting nonlinear elasticity and arbitrary frequency-dependent relaxation. A numerical solution to this equation is found by means of operator splitting and propagation along the spatial depth coordinate. The numerical solution is accurate when compared to analytical solutions for special cases, and when compared to numerical solutions of the full wave equation by other methods. The presented implementation provides a fast numerical method for studying the impact of aberration in medical ultrasound imaging through soft tissue - both on the transmitted beam and the nonlinearly generated harmonic beam.
Page Count	10
File Size	837544
Starting Page	1473
Ending Page	1482
File Format	PDF
ISSN	08853010
Volume Number	52
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer simulation Biological tissues Ultrasonic imaging Acoustic propagation Partial differential equations Nonlinear equations Acoustic beams Computational modeling Application software Acoustic imaging
Content Type	Text
Resource Type	Article
Subject	Acoustics and Ultrasonics Instrumentation Electrical and Electronic Engineering

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