BRAINSTEM CORTICOSPINAL TRACT DIFFUSION TENSOR IMAGING IN PATIENTS WITH PRIMARY POSTERIOR FOSSA NEOPLASMS STRATIFIED BY TUMOR TYPE

Neurosurgery ◽  
2007 ◽  
Vol 61 (6) ◽  
pp. 1199-1208 ◽  
Author(s):  
Yvonne W. Lui ◽  
Meng Law ◽  
Jeena Chacko-Mathew ◽  
James S. Babb ◽  
Keren Tuvia ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Posterior Fossa ◽  
Corticospinal Tract ◽  
Diffusion Tensor ◽  
Tumor Type

Diffusion Tensor Imaging Connectomics Reveals Preoperative Neural Connectivity Changes in Children with Postsurgical Posterior Fossa Syndrome

2020 ◽  
Vol 30 (2) ◽  
pp. 192-197 ◽  
Author(s):  
Avner Meoded ◽  
Lisa Jacobson ◽  
Ann Liu ◽  
Colleen Bauza ◽  
Thierry A. G. M. Huisman ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Posterior Fossa ◽  
Diffusion Tensor ◽  
Neural Connectivity ◽  
Posterior Fossa Syndrome

Changes in the corticospinal tract after wearing prosthesis in bilateral transtibial amputation

2017 ◽  
Vol 41 (5) ◽  
pp. 507-511
Author(s):  
Sang Yoon Lee ◽  
Si Hyun Kang ◽  
Don-Kyu Kim ◽  
Kyung Mook Seo ◽  
Hee Joon Ro ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Diffusion Tensor Imaging ◽  
Magnetic Resonance ◽  
Primary Motor Cortex ◽  
Corticospinal Tract ◽  
Diffusion Tensor ◽  
Brain Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Transtibial Amputation

Background:After amputation, the brain is known to be reorganized especially in the primary motor cortex. We report a case to show changes in the corticospinal tract in a patient with serial bilateral transtibial amputations using diffusion tensor imaging.Case Description and Methods:A 78-year-old man had a transtibial amputation on his left side in 2008 and he underwent a right transtibial amputation in 2011. An initial brain magnetic resonance imaging with a diffusion tensor imaging was performed before starting rehabilitation on his right transtibial prosthesis, and a follow-up magnetic resonance imaging with diffusion tensor imaging was performed 2 years after this.Findings and Outcomes:In the initial diffusion tensor imaging, the number of fiber lines in his right corticospinal tract was larger than that in his left corticospinal tract. At follow-up diffusion tensor imaging, there was no definite difference in the number of fiber lines between both corticospinal tracts.Conclusion:We found that side-to-side corticospinal tract differences were equalized after using bilateral prostheses.Clinical relevanceThis case report suggests that diffusion tensor imaging tractography could be a useful method to understand corticomotor reorganization after using prosthesis in transtibial amputation.

scholarly journals White matter plasticity in the corticospinal tract of musicians: A diffusion tensor imaging study

NeuroImage ◽  
2009 ◽  
Vol 46 (3) ◽  
pp. 600-607 ◽  
Author(s):  
Adrian Imfeld ◽  
Mathias S. Oechslin ◽  
Martin Meyer ◽  
Thomas Loenneker ◽  
Lutz Jancke
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Corticospinal Tract ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
Diffusion Tensor Imaging Study

Corticospinal tract involvement in spinocerebellar ataxia type 3: a diffusion tensor imaging study

2020 ◽  
Author(s):  
Bruno Shigueo Yonekura Inada ◽  
Thiago Junqueira Ribeiro Rezende ◽  
Fernando Vieira Pereira ◽  
Lucas Ávila Lessa Garcia ◽  
Antônio José da Rocha ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Spinocerebellar Ataxia ◽  
Corticospinal Tract ◽  
Diffusion Tensor ◽  
Imaging Study ◽  
Spinocerebellar Ataxia Type ◽  
Spinocerebellar Ataxia Type 3 ◽  
Tract Involvement ◽  
Type 3 ◽  
Diffusion Tensor Imaging Study

scholarly journals Diffusion Tensor Imaging Evaluation of Corticospinal Tract Hyperintensity in Upper Motor Neuron-Predominant ALS Patients

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Venkateswaran Rajagopalan ◽  
Didier Allexandre ◽  
Guang H. Yue ◽  
Erik P. Pioro
Keyword(s):  
Diffusion Tensor Imaging ◽  
Motor Neuron ◽  
Corticospinal Tract ◽  
Diffusion Tensor ◽  
Mean Diffusivity ◽  
Internal Capsule ◽  
Proton Density ◽  
Imaging Evaluation ◽  
Axonal Pathology ◽  
Als Patients

Amyotrophic lateral sclerosis (ALS) patients with predominant upper motor neuron (UMN) signs occasionally have hyperintensity of corticospinal tract (CST) on T2- and proton-density-(PD-) weighted brain images. Diffusion tensor imaging (DTI) was used to assess whether diffusion parameters along intracranial CST differ in presence or absence of hyperintensity and correspond to UMN dysfunction. DTI brain scans were acquired in 47 UMN-predominant ALS patients with (n=21) or without (n=26) CST hyperintensity and in 10 control subjects. Fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) were measured in four regions of interests (ROIs) along CST. Abnormalities (P<0.05) were observed in FA, AD, or RD in CST primarily at internal capsule (IC) level in ALS patients, especially those with CST hyperintensity. Clinical measures corresponded well with DTI changes at IC level. The IC abnormalities suggest a prominent axonopathy in UMN-predominant ALS and that tissue changes underlying CST hyperintensity have specific DTI changes, suggestive of unique axonal pathology.

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