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. Author manuscript; available in PMC: 2016 Sep 1.
Published in final edited form as: Magn Reson Med. 2014 Sep 19;74(3):785–802. doi: 10.1002/mrm.25457

Fig. 4.

Fig. 4

Relative bias and dispersion of T2 and α estimates obtained using Monte Carlo simulations for the stretched exponential signal model at SNR 10 (left column) and 70 (middle column) using NLLSG, NLLSG,O, NLLSR, MAPG, MAPG,O and MAPR analysis methods for five different combinations of T2 and α values (right column). Decreased bias and dispersion, that is, improved accuracy and precision, were achieved through use of Rician noise model and Bayesian analysis as discussed in detail in the text.