Reply to “The usefulness of diffusion tensor tractography for estimating the state of corticobulbar tract in stroke patients”

Diffusion tensor imaging (DTI) is an advanced magnetic resonance imaging technique used to demonstrate the structural integrity of white matter tracts. DTI has a unique advantage in visualizing the neural fiber tracts in the proximity of cerebral infarction by use of constructing three-dimensional images of white matter fiber tracts (Mori and van Zijl, 2002). A diffusion tensor tractography (DTT) study by Dr Jang investigated the injury of the corticobulbar tract (CBT) in stroke patients with dysarthria, and suggested that the evaluation of the CBT using DTT provides important information in stroke patients with bulbar symptoms (Kwon et al., 2016).

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