PMC7711857_01
(a) Brain magnetic resonance images taken four weeks after the onset of pontine infarction showing bilateral leukomalatic lesion in the pons. (b) Results of DTT of the ARAS. Impaired neural connectivity (magenta arrows) in the left lower dorsal ARAS (the left lower dorsal ARAS [orange colored tract] is thinner), both lower ventral ARAS (the lower ventral ARAS was not reconstructed in both hemisphere) and both upper ARAS (decreased neural connectivity to each cerebral cortex in both hemispheres: the right hemisphere (sky blue-colored tract)-no neural fibers reached the dorsolateral prefrontal cortex, orbitofrontal cortex, and posterior parietal cortex, and the left hemisphere (yellow-colored tract)-no neural fibers were connected to the orbitofrontal cortex) are noticed compared to a normal subject (73 year-old woman).
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Brain magnetic resonance imaging taken on the same day revealed bilateral paramedian pontine infarction (Figure 1a).