Figure 3. Voxel-level Correlations between Undersampled and Fullly Sampled $\text{a}{\mathrm{T}}_2\mathrm{*}$.

(a-d) For phantom size 64³ (a-d), $\text{a}{\mathrm{T}}_2\mathrm{*}$ maps at sampling rates of 90%, 70%, 50%, and 10% exhibit strong and significant correlations with fully sampled $\text{a}{\mathrm{T}}_2\mathrm{*}$ maps, respectively. However, as the sampling level decreases, the correlation intercept also decreases, suggesting a shift towards higher $\text{a}{\mathrm{T}}_2\mathrm{*}$ values in the different sampling rates compared to fully sampled data. Similar trends are observed for phantom sizes 96³ (e-h) and 128³ (i-l).