Somatotopic location of corticospinal tract at pons in human brain: A diffusion tensor tractography study

Title
Somatotopic location of corticospinal tract at pons in human brain: A diffusion tensor tractography study
Author(s)
장성호홍지헌손수민
Keywords
INTERNAL CAPSULE; PYRAMIDAL TRACT; FUNCTIONAL MRI; ORGANIZATION; HANDEDNESS; INFARCTS
Issue Date
201007
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Citation
NEUROIMAGE, v.51, no.3, pp.952 - 955
Abstract
No diffusion tensor tractography (DTT) study has yet investigated the somatotopic location of the corticospinal tract (CST) at the pons. In the current study, we used DTT to investigate the somatotopic location of the CST at the pons in the human brain. We recruited 25 healthy volunteers for this study. Diffusion tensor images (DTIs) were scanned using 1.5-T; CSTs for the hand and leg were obtained using FMRIB software. Normalized OTT was reconstructed using the Montreal Neurological Institute echo-planar imaging template supplied with the SPM. Individual DTI data were calculated as a pixel unit at the upper and lower pons. Relative average location of the highest probability point of the CST for the hand was 47.70%, with the standard from the midline to the most lateral point of the upper pons, and 35.87% at the lower pons. For the leg, the CST was located at 56.82% at the upper pons and 40.63% at the lower pons. For the anteroposterior direction from the most anterior point of the pons to the most anterior point of the fourth ventricle, the CST for the hand was located at 42.30% at the upper pons and 36.18% at the lower pons. For the leg, the CST was located at 45.68% and 39.01%, respectively. We found that the hand somatotopy of the CST was located at the antero-medial portion at the pons and that the leg somatotopy of the CST was located postero-laterally to the hand somatotopy of the CST. (C) 2010 Elsevier Inc. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/22181http://dx.doi.org/10.1016/j.neuroimage.2010.02.063
ISSN
1053-8119
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의과대학 > 재활의학교실 > Articles
의과대학 > 영상의학과학교실 > Articles
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