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The nonlinearity B/A parameter is an important parameter influencing the distortion of ultrasound waves in tissue. B/A has different values for normal and pathological media and can be used for tissue characterization. The extended comparative method (ECM) allows estimating the B/A parameter in echo mode configuration but presents some limitations. The limitations are the concentration of energy due...
The simulation of nonlinear propagation of ultrasound wave in biological tissue is a very time consuming operation. Different simulators, based on finite difference or angular spectrum methods have been reported in the literature and the second one provide faster simulations by considering separately the different harmonics. In this paper we proposed to use a generalized angular spectrum method (GASM)...
The linear propagation of ultrasound in media is an approximation of reality and current ultrasound image simulators do not take into account the nonlinear behaviour of the propagation. This article proposes a new tool, CREANUIS, which associates the nonlinear propagation theory to arbitrary scatterer distributions to create nonlinear radio frequency images. The amplitude distribution of the radio...
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