Tissue Type | Technique | |||
---|---|---|---|---|

ADC/FA | MTR | T1 | Pd | |

NAWM | 117.5 (2.8 mL) | 624 (2.5 mL) | 660 (2.6 mL) | 660 (2.6 mL) |

DAWM | 53 (1.3 mL) | 327 (1.3 mL) | 283 (1.1 mL) | 200 (0.8 mL) |

Focal WM lesions | 19.5 (0.5 mL) | 117 (0.5 mL) | 123.5 (0.5 mL) | 80.5 (0.3 mL) |

a Median values are given for the entire group of patients in this study. A more detailed subdivision by anatomic region and disease type is provided in Table 3. The size of each region of interest was defined as the total number of voxels included in the ROI, after warping it to the corresponding quantitative MR imaging maps as described in the text. The corresponding ROI volume was calculated by multiplying the number of voxels by the appropriate voxel volume, which was 4 mm

^{3}for the T1 and MTR maps, and 24 mm^{3}for the ADC and FA maps. The column headed “Pd” gives the values for the original ROIs as drawn on the Pd-weighted images.