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Simulation of B-mode imaging and spatial compounding in inhomogeneous media

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4 Author(s)
Krueger, M. ; Inst. fur Hochfrequenztech., Ruhr-Univ., Bochum, Germany ; Ermert, H. ; Li, M. ; Kaarmann, H.T.

The design of ultrasonic B-mode imaging systems with linear arrays requires the optimization of numerous parameters. A hybrid simulation method using finite element analysis data, a Huygens-integral modified in order to consider inhomogeneities, and the first order Born approximation has been developed to optimize beam forming operating modes. B-mode images and spatially compounded images are calculated for a 3.5 MHz phased array. The influence of layered media on the extension of the point spread function can be corrected using backpropagation. Irregularly aberrating media influence the point spread function and the image quality significantly. Parameters for beam forming in B-mode imaging and spatial compounding are selected taking these inhomogeneities into account

Published in:

Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE  (Volume:2 )

Date of Conference:

7-10 Nov 1995