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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2013 Oct 24;61(9):2367–2378. doi: 10.1109/TBME.2013.2287244

TABLE I.

Image quality metrics on the three ROIs as indicated by the squares in Fig. 1(b) in the case of 17 mAs.

ROI A ROI B ROI C
Methods lSNR rRMSE lSNR rRMSE lSNR rRMSE
FBP 8.66 0.1158 5.64 0.1783 4.94 0.2078
PWLS-NL 76.56 0.0157 62.25 0.0181 36.61 0.0310
PICCS 96.80 0.0116 50.74 0.0213 15.87 0.0674
GDSIR 48.83 0.0224 38.75 0.0272 27.49 0.0407
PWLS-PINL 76.72 0.0156 62.19 0.0181 44.31 0.0266