Table 3:
Number of voxels (medians and IQRs) in the ROI drawn on the Pd-weighted imagesa
| Disease Type, Region | NAWM |
DAWM |
Lesions |
|||
|---|---|---|---|---|---|---|
| Median | IQR | Median | IQR | Median | IQR | |
| PPMS | ||||||
| Frontal | 314.0 | 247.5–338.5 | 89.0 | 79.5–120.0 | 25.0 | 17.0–56.0 |
| Parieto-occipital | 318.0 | 305.0–379.5 | 128.0 | 111.0–156.0 | 32.0 | 26.0–52.0 |
| Combined | 593.0 | 528.0–713.0 | 212.0 | 190.5–265.5 | 57.0 | 17.0–80.0 |
| SPMS | ||||||
| Frontal | 394.0 | 238.0–452.0 | 99.0 | 69.0–121.0 | 40.5 | 32.0–87.0 |
| Parieto-occipital | 390.0 | 319.0–501.0 | 94.5 | 76.0–114.0 | 56.0 | 36.0–61.0 |
| Combined | 703.0 | 629.0–921.0 | 193.0 | 141.0–238.0 | 95.0 | 71.0–144.0 |
a
The “Combined” ROI for each patient is the combination of the frontal and parieto-occipital ROIs for that tissue type (NAWM, DAWM, or lesions).