Fig. 6 | Scientific Reports

Fig. 6

From: Diffusion MRI with double diffusion encoding and variable mixing times disentangles water exchange from transient kurtosis

Fig. 6

Evaluation of MGE in different substrates: isotropic Gaussian components in exchange (Iso-Iso Gaussian) and anisotropic Gaussian components in exchange with an isotropic component (Iso-Aniso Gaussian). Estimates were obtained from signals generated using protocol 3 at an SNR of 200. The error bars represent one standard deviation. Dashed lines reflect ground truth. The kurtosis estimates show—as expected—a weak to no dependence on the true exchange rate. MGE exchange estimates in all three substrates agree well with the ground truth. However, MGE shows a notable decline in precision at high exchange rates.

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