Averaged ratios of relevant quantities as a function of time. We show the time evolution of three ratios: the area in which the extended MRI is active (𝒜_eMRI) over the area in which the standard MRI is active (𝒜_MRI); the ratio λ_MRI/λ_eMRI; and the ratio τ_MRI/τ_eMRI. Interestingly, the low value of τ_MRI/τ_eMRI (especially when multiplied by 𝒜_MRI/𝒜_eMRI to estimate the effective ratio) indicates that the magnetic field gradients might be diminishing the MRI.