, optic nerve, brainstem, and spinal cord localizations), had a mean age of 31 to 32, were Western European, and were scanned with
MRI magnetic field strengths ≤1.5 T. The dating of lesions on a single scan with Gd for DIT is an interesting development, as Gd sensitivity can be influenced by several variables (e.g., dose, timing, agent, field strength, T1 sequence).