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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: IEEE Trans Med Imaging. 2018 Oct 8;38(4):894–908. doi: 10.1109/TMI.2018.2874545

TABLE I:

Shear wave speed and CNR of Type IV inclusion and background from different methods and various inclusions diameter. Methods presented here are: (1) cg with Anderssen-Hegland averaging, (2) LPVI, f0 = 1000 Hz, (3) LPVI, fband for 700 to 1100 Hz, (4) Phase vel. [24], f0 = 1000 Hz and (5) Phase vel. [24], fband for 700 to 1100 HZ.

10.40 mm 6.49 mm 4.05 mm 2.53 mm
Method Inclusion mean±SD [m/s] Background mean±SD [m/s] CNR [dB] Inclusion mean±SD [m/s] Background mean±SD [m/s] CNR [dB] Inclusion mean±SD [m/s] Background mean±SD [m/s] CNR [dB] Inclusion mean±SD [m/s] Background mean±SD [m/s] CNR [dB]
(1) 4.95±0.44 3.00±0.16 21.89 4.50±0.33 2.85±0.06 29.03 4.16±0.37 2.80±0.10 22.26 3.76±0.35 2.80±0.16 15.73
(2) 4.96±0.67 2.91±0.12 24.36 4.64±0.58 2.82±0.10 24.80 4.27±0.36 2.74±0.15 20.39 3.80±0.32 2.72±0.30 11.06
(3) 4.90±0.64 2.91±0.13 23.55 4.57±0.44 2.80±0.08 26.72 4.27±0.35 2.73±0.09 24.41 3.84±0.39 2.71±0.18 15.81
(4) 5.24±0.62 3.14±0.67 9.94 4.77±0.41 2.99±0.60 9.43 4.37±0.41 2.91±0.62 7.52 4.00±0.49 2.90±0.59 5.36
(5) 5.32±0.56 3.61±0.93 5.28 4.72±0.46 3.54±1.06 0.95 4.27±0.36 3.23±0.82 2.10 3.81±0.41 3.12±0.73 −0.40