  Among various choices of 2-D ultrasound transducer arrays, the
row-column-addressed (RCA) 2-D array has shown its promise for 3-D imaging.
However, RCA suffers from notable edge effects and thus receives ghost echoes,
which result in ghost artifacts showing in the volumetric image. In this
research, rather than discarding these ghost echoes, we consider them as
supportive signals and incorporate them into a postfiltering-based method to
enhance the RCA imaging quality. Field II simulation and results of a single
scatterer are presented in this work. The strongest ghost artifact is
suppressed by 23 dB and the -6 dB lateral resolution is improved from 1.06 to
0.81 mm. The proposed method shows promising results in suppressing ghost
artifacts and enhancing lateral resolution.
