High Resolution Diffusion Tensor Imaging of Cortical-Subcortical White Matter Tracts in TBI

2010 ◽  
Author(s):  
Deborah M. Little
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
High Resolution ◽  
Diffusion Tensor ◽  
Subcortical White Matter ◽  
White Matter Tracts

scholarly journals Subcortical White Matter Changes with Normal Aging Detected by Multi-Shot High Resolution Diffusion Tensor Imaging

PLoS ONE ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. e0157533 ◽  
Author(s):  
Sheng Xie ◽  
Zhe Zhang ◽  
Feiyan Chang ◽  
Yishi Wang ◽  
Zhenxia Zhang ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
High Resolution ◽  
Diffusion Tensor ◽  
Normal Aging ◽  
Subcortical White Matter ◽  
White Matter Changes

Diffusion tensor imaging analysis in scrub typhus meningoencephalitis to determine the alteration of microstructural subcortical white-matter integrity

2020 ◽  
pp. 197140092098031
Author(s):  
Pranjal Phukan ◽  
Kalyan Sarma ◽  
Aman Yusuf Khan ◽  
Bhupen Barman ◽  
Md Jamil ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Scrub Typhus ◽  
Diffusion Tensor ◽  
Neuronal Degeneration ◽  
Central Nervous System Involvement ◽  
Subcortical White Matter ◽  
White Matter Integrity ◽  
Conventional Mri ◽  
Significant Difference

Background and purpose Magnetic resonance imaging (MRI) of the brain in scrub typhus meningoencephalitis is non-specific, and in the majority of the cases, conventional MRI fails to detect any abnormality. However, autopsy reports depict central nervous system involvement in almost all patients. There is therefore a need for research on the quantitative assessment of brain parenchyma that can detect microstructural abnormalities. The study aimed to assess the microstructural integrity changes of scrub typhus meningoencephalitis by using different diffusion tensor imaging (DTI) parameters. Methods This was a retrospective analysis of scrub typhus meningoencephalitis. Seven patients and seven age- and sex-matched healthy controls were included. Different DTI parameters such as apparent diffusion coefficient (ADC), fractional anisotropy (FA), relative anisotropy (RA), trace, volume ratio (VR) and geodesic anisotropy (GA) were obtained from six different regions of subcortical white matter at the level of the centrum semiovale. Intergroup significant difference was determined by one-way analysis of variance followed by Tukey’s post hoc test. Receiver operating characteristic curves were constructed to determine the accuracy of the DTI matrices. Results There was a significant decrease in FA, RA and GA as well as an increase in ADC and VR in the subcortical white matter in patients with scrub typhus meningoencephalitis compared to controls ( p < 0.001). The maximum sensitivity of the DTI parameters was 85.7%, and the maximum specificity was 81%. Conclusion There was an alteration of subcortical white-matter integrity in scrub typhus meningoencephalitis that represents the axonal degeneration, myelin breakdown and neuronal degeneration. DTI may be a useful tool to detect white-matter abnormalities in scrub typhus meningoencephalitis in clinical practice, particularly in patients with negative conventional MRI.

Diffusion tensor imaging shows white matter tracts between human auditory and visual cortex

2011 ◽  
Vol 213 (2-3) ◽  
pp. 299-308 ◽  
Author(s):  
Anton L. Beer ◽  
Tina Plank ◽  
Mark W. Greenlee
Keyword(s):  
Diffusion Tensor Imaging ◽  
Visual Cortex ◽  
White Matter ◽  
Diffusion Tensor ◽  
White Matter Tracts

Diffusion tensor imaging of major white matter tracts in active and recently abstinent methamphetamine users

2014 ◽  
Vol 140 ◽  
pp. e124
Author(s):  
Joanne C. Lin ◽  
R.K. Jan ◽  
T.A. Wouldes ◽  
R.R. Kydd ◽  
B.R. Russell
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Diffusion Tensor ◽  
White Matter Tracts

scholarly journals Use of High Resolution 3D Diffusion Tensor Imaging to Study Brain White Matter Development in Live Neonatal Rats

2011 ◽  
Vol 2 ◽  
Author(s):  
Yu Cai ◽  
Matthew S. McMurray ◽  
Ipek Oguz ◽  
Hong Yuan ◽  
Martin A. Styner ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
High Resolution ◽  
Diffusion Tensor ◽  
Neonatal Rats ◽  
Brain White Matter ◽  
White Matter Development

scholarly journals A 3D high resolution ex vivo white matter atlas of the common squirrel monkey (saimiri sciureus) based on diffusion tensor imaging

2016 ◽  
Author(s):  
Yurui Gao ◽  
Prasanna Parvathaneni ◽  
Kurt G. Schilling ◽  
Feng Wang ◽  
Iwona Stepniewska ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
High Resolution ◽  
Squirrel Monkey ◽  
Diffusion Tensor ◽  
Ex Vivo ◽  
Saimiri Sciureus ◽  
The Common
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