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학제간연구 과학기술학 뇌인지과학 기술정책 기타 복합학

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논문 기본 정보

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학술저널
저자정보
Kim, Myoung Soo (Department of Neurosurgery, Seoul Paik Hospital, Inje University College of Medicine) Chung, Chun Kee (Department of Neurosurgery, Seoul National University College of Medicine) Jung, Hee-Won (Department of Neurosurgery, Seoul National University College of Medicine) Park, Chul-Kee (Department of Neurosurgery, Seoul National University College of Medicine) Kim, Chi Heon (Department of Neurosurgery, Seoul National University College of Medicine) Kim, June Sic (Department of Neurosurgery, Seoul National University College of Medicine)
저널정보
대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제55권 제5호
발행연도
2014.1
수록면
267 - 272 (6page)

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Objective : Differentiation of demyelination in white matter from axonal damage can be determined using diffusion tensor imaging (DTI). In this study using meningioma patients an attempt was made to evaluate the relationship between preoperative weakness and the changes of diffusion parameters in the corticospinal tract (CST) using DTI. Methods : Twenty-six patients with meningioma were enrolled in this study. Eleven of them suffered from objective motor weakness and were classified as Group 1. The remaining 15 patients did not present motor weakness and were classified as Group 2. Fiber tractography and CST diffusion parameters were obtained using DTIStudio. The ratios (lesion side mean value/contralateral side mean value) of CST diffusion parameters were compared with 1.0 as a test value using a one-sample t-test. Results : In Group 1, fractional anisotropy (FA), tensor trace (TT), and radial diffusivity (RD, ${\lambda}2$ and ${\lambda}3$) of the CST were significantly different between two hemispheres, but axial diffusivity (AD, ${\lambda}1$) of the CST was not significantly different between two hemispheres. In Group 2, FA and ${\lambda}3$ of CST did not differ significantly between the hemispheres. In Group 2, TT, ${\lambda}1$, and ${\lambda}2$ of CST in the ipsilateral hemisphere were significantly higher than those of the unaffected hemisphere. However, the differences were small. Conclusion : Motor weakness was related to a low FA and high TT resulting from increased RD of the CST fibers. CST diffusion changes in patients with weakness are similar to those for demyelination.
#Corticospinal tract #Diffusion tensor imaging #Weakness #Demyelination #Diffusion

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참고문헌 (20)

참고문헌 신청
Bello L / 2008 / Motor and language DTI Fiber Tracking combined with intraoperative subcortical mapping for surgical removal of gliomas / Neuroimage 39:369~382 google schola Berman JI / 2005 / Quantitative diffusion tensor MRI fiber tractography of sensorimotor white matter development in premature infants / Neuroimage 27:862~871 google schola Budde MD / 2009 / Axial diffusivity is the primary correlate of axonal injury in the experimental autoimmune encephalomyelitis spinal cord : a quantitative pixelwise analysis / J Neurosci 29:2805~2813 google schola Field AS / 2004 / Diffusion tensor eigenvector directional color imaging patterns in the evaluation of cerebral white matter tracts altered by tumor / J Magn Reson Imaging 20:555~562 google schola Helton KJ / 2006 / Diffusion tensor imaging of tract involvement in children with pontine tumors / AJNR Am J Neuroradiol 27:786~793 google schola

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