Clutter Mitigation in Echocardiography Using Sparse Signal Separation

Figure 8

Mean CNR and mean PSNR measurements for MCA, SVF, and FIR methods for varied ((a) and (b)) echo correlation and ((c) and (d)) axial shift of the tissue scatterers. Markers represent the mean CNR and mean PSNR, respectively, and error bars the standard deviation over 100 simulations. The dashed line, labeled “perfect filtering,” represents the mean CNR when the clutter artifacts are not present in the simulated echo data. Likewise, “unfiltered” represents the CNR or PSNR of the measured data with clutter artifacts and when no filtering technique is applied.

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