In order to have a close study in phase aberration models of medical ultrasound imaging, a series of comparative simulations of sound field in transmission and received signal in reception were conducted through Westervelt equation solved by finite difference in time domain. The results of the ideal homogeneous media and human abdominal tissues were used as the reference for the three different phase aberration models including near-field screen model, gross velocity error model and multi-layer model, which...
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