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Article type: Research Article
Authors: Jang, Sung Ho; *
Affiliations: Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University Daemyungdong, Namku, Taegu, Republic of Korea
Correspondence: [*] Corresponding author: Sung Ho Jang, Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University 317-1 Daemyungdong, Namku, Taegu, 705-717, Republic of Korea. Tel.: +82 53 620 3269; Fax: +82 53 620 3269; E-mail: [email protected]
Abstract: The corticospinal tract (CST) is the most important neural tract for motor function in the human brain. Therefore, clarification of CST injury would be an important topic in traumatic brain injury (TBI) rehabilitation. In this review, I reviewed diffusion tensor imaging (DTI) studies on CST injuries in terms of etiology and recovery in patients with TBI. Although DTI has several unique advantages for research on CST injury in TBI, only a dozen DTI studies on this topic have been reported: etiology of CST injury (9 studies), recovery of CST injury (3 studies). As for the etiology of CST injury in TBI, the previous studies have demonstrated the usefulness of DTI in diagnosis of CST injury in cases of diffuse axonal injury, transtentorial herniation, cerebral hemorrhage, and cortical contusion; moreover, according to the severity of TBI. The three studies on recovery of CST injury focused on recovery of a CST injured by diffuse axonal injury. In the future, we suggest an increase in the total number of DTI studies on this topic. In particular, research on recovery of CST injury should be encouraged. Moreover, studies of the various recovery mechanisms related to the CST are necessary.
Keywords: Traumatic brain injury, diffuse axonal injury, traumatic axonal injury, diffusion tensor imaging, diffusion tensor tractography, motor recovery, corticospinal tract
DOI: 10.3233/NRE-2011-0710
Journal: NeuroRehabilitation, vol. 29, no. 4, pp. 339-345, 2011
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