Table 5.
The mean myelin partial volume VMY, cellular partial volume VCL, the excess parenchymal water partial volume VEPW, and myelin water fraction MWF of various brain structures, estimated as a percentage of the acquisition voxel volume for the three example subjects.
| 45 years |
72 years |
45 year-MS |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VMY (%) | VCL (%) | VEPW (%) | MWF (%) | VMY (%) | VCL (%) | VEPW (%) | MWF (%) | VMY (%) | VCL (%) | VEPW (%) | MWF (%) | |
| Insula | 4 | 95 | 1 | 2 | 3 | 91 | 6 | 2 | 7 | 92 | 1 | 4 |
| Cingulate cortex | 4 | 95 | 1 | 2 | 6 | 91 | 3 | 3 | 2 | 93 | 5 | 1 |
| Caudate nucleus | 13 | 87 | 0 | 7 | 9 | 91 | 0 | 5 | 10 | 90 | 0 | 5 |
| Cortical gray mater | 3 | 94 | 3 | 2 | 7 | 91 | 2 | 4 | 4 | 93 | 3 | 2 |
| Pons | 23 | 76 | 1 | 15 | 22 | 76 | 2 | 14 | 22 | 78 | 0 | 14 |
| Putamen | 11 | 89 | 0 | 6 | 9 | 91 | 0 | 5 | 12 | 88 | 0 | 7 |
| Mid brain | 19 | 81 | 0 | 12 | 18 | 79 | 3 | 11 | 21 | 78 | 1 | 13 |
| Thalamus | 19 | 81 | 0 | 12 | 20 | 79 | 1 | 12 | 21 | 79 | 0 | 13 |
| Occipital white mat | 31 | 58 | 11 | 22 | 27 | 57 | 16 | 18 | 32 | 56 | 12 | 23 |
| Frontal white mater | 35 | 60 | 5 | 26 | 25 | 61 | 14 | 16 | 36 | 62 | 2 | 27 |
| Parietal white mater | 35 | 61 | 4 | 26 | 26 | 70 | 4 | 17 | 35 | 64 | 1 | 27 |
| Sub-lobar white mat | 32 | 63 | 5 | 23 | 21 | 75 | 4 | 13 | 30 | 70 | 0 | 21 |
| White matter | 33 | 59 | 8 | 24 | 26 | 72 | 12 | 15 | 32 | 61 | 7 | 24 |
| Corpus callosum | 31 | 63 | 6 | 22 | 33 | 60 | 7 | 24 | 33 | 54 | 13 | 24 |