FIG 1. A, MR imaging of a spinal cord compression due to a breast tumor metastasis in patient 1. Images are from C7–T10. Color-coded scale related to parameters values. Higher values are coded in red, medium values in green, and lower values in blue. T2-weighted imaging (first image) shows a high signal intensity (white arrow), ADC (second image) is slightly increased (blue-green areas; ADC = 1.1 10^–3 mm²/s versus 0.84 10^–3 mm²/s in normal cervicothoracic area) and FA (third image) is decreased (green areas; FA = 0.61 vs 0.75 in normal cervicothoracic area) after region of interest measurements. The region of interest in abnormal area was drawn by using the fiber tracking three-dimensional reconstruction.

B, MR imaging of a spinal cord compression due to a breast tumor metastasis with epidural involvement in patient 1. Fiber tracking over b0 image shows a mass-effect on fibers tracts. The region of interest (green area) was drawn over the maximal level of compression (blue arrow) and then automatically reported on the coregistered ADC and FA maps to measure ADC and FA values in the compression site.