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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Ultrasound Med Biol. 2019 Jun 21;45(9):2540–2553. doi: 10.1016/j.ultrasmedbio.2019.04.016

Figure 3:

Figure 3:

Magnitude of the k-space spectra calculated using the 2D-FT method. The k-space spectra have superimposed vertical lines corresponding to 80 % (dotted line) and 90 % (dashed line) of power spectra amplitude, respectively. Results were calculated for the numerical LISA viscoelastic phantoms without added noise and with a SNR = 15 dB, with assumed material properties. (top row) μ1 = 4.99 kPa and μ2 = 1 Pa·s (Phantom 1). (middle row) μ1 = 3.34 kPa and μ2 = 1.25 Pa·s (Phantom 2). (bottom row) μ1 = 1.48 kPa and μ2 = 0.75 Pa·s (Phantom 3).