. Author manuscript; available in PMC: 2018 Mar 1.

Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2016 Nov 29;64(3):491–499. doi: 10.1109/TUFFC.2016.2633429

TABLE II.

Signal to noise ratios FEM simulation

ROI	Algorithm	4 slices	6 slices	12 slices	16 slices
bkg	MRF	18.45	18.67	18.75	18.74
	NNB	16.04	16.45	16.23	16.21
	LIN	17.50	16.89	17.33	17.38

inc	MRF	13.60	12.49	12.17	12.07
	NNB	11.75	10.66	10.40	10.34
	LIN	8.78	10.10	10.68	10.82

Signal to noise ratios (SNR) in dB calculated from parallelepiped shaped ROIs in the background and inclusion. The MRF reconstruction has a higher SNR in all cases. (MRF = Markov random field algorithm, NNB = nearest neighbors interpolation, LIN = linear interpolation, bkg = background, inc = inclusion).