Fig 3. A, Isotropic DWIs demonstrating a left middle cerebral infarct in a term born infant (infant 4) and abnormal signal intensity in the left posterior limb of the internal capsule and left thalamus (arrow) (i, b = 3000 s/mm²; ii, b = 1500 s/mm²; iii, b = 700 s/mm²; iv, b = 350 s/mm²). B, Isotropic DWIs demonstrating wallerian degeneration in the corticospinal tracts of the left mesencephalon (arrow). Susceptibility artifact appears reduced on the higher b-value isotropic DWIs, thereby allowing the infarct in the left temporal lobe to be more clearly visualized (arrowhead) (i, b = 3000 s/mm²; ii, b = 1500 s/mm²; iii, b = 700 s/mm²; iv, b = 350 s/mm²).