Table 3 Suggested minimum number of acquisitions needed for bias-free FA and MD measurements using both ROI- and voxel-based quantifications at 1.5 T and 3 T MRI scanners (voxel-based values are in parenthesis).
Brain region | 1.5 T Philips | 3 T Philips | 3 T Siemens | 3 T GE | |
|---|---|---|---|---|---|
Fractional Anisotropy | CN | 4 (N/A) | 2 (3) | 2 (3) | 2 (3) |
GP | N/A (N/A) | 4 (N/A) | 4 (N/A) | 4 (N/A) | |
PUT | N/A (N/A) | 3 (N/A) | 3 (N/A) | 3 (N/A) | |
STG | N/A (N/A) | 4 (N/A) | 4 (N/A) | 4 (N/A) | |
Thalamus VA | N/A (N/A) | 3 (N/A) | 3 (4) | 3 (4) | |
Thalamus LD | N/A (N/A) | 3 (4) | 3 (4) | 3 (4) | |
Thalamus VP | N/A (N/A) | 3 (4) | 3 (4) | 2 (4) | |
Mean Diffusivity | CN | N/A (N/A) | N/A (N/A) | N/A (N/A) | N/A (N/A) |
GP | N/A (N/A) | N/A (N/A) | N/A (N/A) | N/A (N/A) | |
PUT | 4 (N/A) | 3 (4) | 3 (4) | 3 (4) | |
STG | N/A (N/A) | 3 (4) | 3 (4) | 3 (4) | |
Thalamus VA | N/A (N/A) | 3 (N/A) | 3 (N/A) | 3 (N/A) | |
Thalamus LD | N/A (N/A) | N/A (N/A) | N/A (N/A) | N/A (N/A) | |
Thalamus VP | 3 (4) | 2 (3) | 2 (3) | 2 (3) |
