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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Magn Reson Med. 2019 Sep 10;83(3):844–857. doi: 10.1002/mrm.27967

Figure 1.

Figure 1.

Influence of SNR on the sensitivity of the estimated Y on the initial guess (Numerical Simulation 1). Shown is the relative error between the estimated Y and the ground truth (YT). Y0 and v0 are the initial guesses of Y and v, respectively. As SNR decreases, Y becomes increasingly more sensitive to the initial guess, resulting in larger errors when the initial guess is away from the ground truth value. This seems more severe in the case with smaller v: vT = 0.03 (Case 1) vs. 0.01 (Case 2). The gray box indicates the ground truth values (YT and vT).