Harmonic Imaging (Basic Lectures : Ultrasound)
نویسندگان
چکیده
منابع مشابه
Tissue harmonic synthetic aperture ultrasound imaging.
Synthetic aperture sequential beamforming (SASB) and tissue harmonic imaging (THI) are combined to improve the image quality of medical ultrasound imaging. The technique is evaluated in a comparative study against dynamic receive focusing (DRF). The objective is to investigate if SASB combined with THI improves the image quality compared to DRF-THI. The major benefit of SASB is a reduced bandwi...
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Coded excitation methods offer the potential for improving the SNR without increasing the peak transmitted power and without sacrificing resolution. Our study examines the potential application of coded waveforms, specifically FM chirps, in harmonic imaging. Such a system, in which nonlinear echoes from tissue are used to form the image, requires the extraction and compression of the second har...
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§1 Background and Setup Let M be an m-dimensional, compact, Riemannian manifold endowed with the metric dsM = gij dx i dx , where {x, x, · · · , x} is a local coordinate system of M. Suppose N is an n-dimensional, complete, Riemannian manifold with metric given by dsN = hαβ du α du , where {u, u, · · · , u} is a local coordinate system of N. Let f : M → N be a C mapping from M into N . Definiti...
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Chapter 4 is concerned with meromorphic continuation and examples of various Riemann surfaces, and Chapter 5 deals with Fuchsian groups. The chapter finishes with a proof of Hurwitz's theorem that a compact Riemann surface of genus g has at most 84(g—1) automorphisms, together with a discussion of possible equality. There are four appendices of which the first consists of a review in six pages ...
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ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 2004
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00000922337