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Medical Imaging 2012: Physics of Medical Imaging
A modified multi-element synthetic transmit aperture (MSTA) method for ultrasound imaging with RF echoes correction taking into account the influence of the element directivity is presented. The property is significant as the element width becomes commensurable with the wavelength of the emitted signal. The angular dependence of the radiation efficiency of the transmit/receive aperture is obtained from exact solution of the corresponding mixed boundary-value problem for periodic baffle system,doi:10.1117/12.910584 fatcat:2skszd2mavhfnny24luj3yorvi