FIG 1. A–E, Cross-sectional T1-weighted (800/22/6) (A) and T2-weighted (2000/80/4) (B) images of the spinal cord control specimen show expected hypointensity of white matter on both imaging sequences. Cross-sectional ADC images of this same animal in the read (C) and slice-select (D) axes show gray (G)/white (W) differentiation. A 2-mm dowel is seen ventrally. As expected, the gray matter is relatively isointense on both images but the white matter shows longitudinal anisotropy; ie, hypointense on the read axis (C) and hyperintense on the slice-select axis (D). Corresponding histopathologic section (E) is provided for images shown in A–D; the notch in the upper left of the specimen is used to mark the left side of the spinal cord before sectioning