Fig. 3
From: Magnetic resonance imaging with perfusion and diffusion in assessment of intra-spinal lesions
18-year-old male presented with bilateral lower limb weakness. T2 sagittal cervico-dorsal spine (A) shows long segment of high signal intensity involving the cord opposite lower cervical and upper dorsal vertebrae. Pre-contrast T1 (B) and post-contrast T1 (C) show no significant post-contrast enhancement. D and E rCBV was calculated in comparison to normal cord (yellow curve) and the curve shows hypo perfusion of the lesion (arrow to red curve). DWI at b value = 1000 (F) shows no areas of high signal intensity of the lesion (arrow) which appears also at ADC map (G) denoting free diffusion. This lesion was diagnosed as neuromyelitis optica