Fig. 6

Phase noise had a larger effect on displacement errors with lower k_e. a In a stationary water phantom, phase noise, as quantified by RMSE in radians, was inversely related to SNR. No differences in RMSE were seen between the different k_e. b When RMSE in radians was converted to millimeters by dividing by k_e, there were substantial differences between the different k_e. Lower k_e had increased displacement errors