scholarly journals Application of fiber tractography and diffusion tensor imaging to evaluate spinal cord diseases in dogs

2017 ◽  
Vol 79 (2) ◽  
pp. 418-424 ◽  
Author(s):  
Yuko KONISHI ◽  
Hiroyuki SATOH ◽  
Yasuyoshi KUROIWA ◽  
Mizuki KUSAKA ◽  
Atsushi YAMASHITA ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Fiber Tractography ◽  
Spinal Cord Diseases ◽  
And Diffusion

scholarly journals Reduced Field of View Diffusion Tensor Imaging and Fiber Tractography of the Pediatric Cervical and Thoracic Spinal Cord Injury

2018 ◽  
Vol 35 (3) ◽  
pp. 452-460 ◽  
Author(s):  
Mahdi Alizadeh ◽  
Joshua Fisher ◽  
Sona Saksena ◽  
Yusra Sultan ◽  
Chris J. Conklin ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Field Of View ◽  
Fiber Tractography ◽  
Thoracic Spinal Cord ◽  
Thoracic Spinal ◽  
Cord Injury

Clinical significance of diffusion tensor tractography as a predictor of functional recovery after laminoplasty in patients with cervical compressive myelopathy

2012 ◽  
Vol 17 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Masaya Nakamura ◽  
Kanehiro Fujiyoshi ◽  
Osahiko Tsuji ◽  
Tsunehiko Konomi ◽  
Naobumi Hosogane ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor Imaging ◽  
Recovery Rate ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
Recovery Rates ◽  
Significant Difference ◽  
Cervical Compressive Myelopathy ◽  
Compressive Myelopathy ◽  
And Diffusion

Object This study was conducted to determine whether postoperative changes in the fractional anisotropy (FA) value and diffusion tensor imaging of the cervical spinal cord can predict functional outcome for patients with cervical compressive myelopathy (CCM). Methods Twenty patients with CCM were treated by laminoplasty from 2008 to 2009. Both T2-weighted MRI and diffusion tensor imaging were performed before and after surgery. The FA values were analyzed and fiber tracking was performed. The fiber tract (FT) ratio was calculated according to the following formula: (number of fibers at the compressed level)/(number of fibers at the C-2 level) × 100%. The Japanese Orthopaedic Association scoring system for cervical myelopathy was used to determine pre- and postoperative neurological status of the patients, and the Hirabayashi method was used to calculate the recovery rate. Results There was no significant difference in recovery rates between patients with and those without intramedullary high signal intensity on preoperative T2-weighted images. Substantial differences in FA value among spinal cord, bone, and CSF made it difficult to obtain a precise FA value for the compressed spinal cord. There was a significant correlation between the preoperative FT ratio and the recovery rate (p = 0.0006). A poor outcome (recovery rate < 40%) could be anticipated for CCM patients with preoperative FT ratios below 60%. Conclusions The preoperative FT ratio correlated significantly with the recovery rates in CCM patients. Preoperative diffusion tensor tractography can be a new prognostic predictor for neurological recovery in CCM patients after laminoplasty.

scholarly journals Diagnosis of ulnar nerve entrapment anterior to the medial epicondyle by ultrasound elastography and diffusion tensor imaging with fiber tractography: a case report

2022 ◽  
Author(s):  
Guillaume Jaques ◽  
Fabio Becce ◽  
Jean-Baptiste Ledoux ◽  
Sébastien Durand
Keyword(s):  
Diffusion Tensor Imaging ◽  
Ulnar Nerve ◽  
Diffusion Tensor ◽  
Medial Epicondyle ◽  
Nerve Entrapment ◽  
Ultrasound Elastography ◽  
Fiber Tractography ◽  
Ulnar Nerve Entrapment ◽  
Compressive Neuropathy ◽  
And Diffusion

AbstractUlnar/cubital tunnel syndrome is the second most common compressive neuropathy of the upper limb. Permanent location of the ulnar nerve anterior to the medial epicondyle is extremely rare, with only five cases reported in the literature. Using ultrasound elastography and diffusion tensor imaging with fiber tractography, we diagnosed a case in which ulnar nerve entrapment was associated with anterior nerve location. Surgical release confirmed the diagnosis and the patient was symptom free 3 months after surgery.

scholarly journals Reproducibility of tract-specific magnetization transfer and diffusion tensor imaging in the cervical spinal cord at 3 tesla

2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
Seth A. Smith ◽  
Craig K. Jones ◽  
Aliya Gifford ◽  
Visar Belegu ◽  
BettyAnn Chodkowski ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Cervical Spinal Cord ◽  
Magnetization Transfer ◽  
3 Tesla ◽  
Specific Magnetization ◽  
And Diffusion

Longitudinal study on diffusion tensor imaging and diffusion tensor tractography following spinal cord contusion injury in rats

2016 ◽  
Vol 58 (6) ◽  
pp. 607-614 ◽  
Author(s):  
Can Zhao ◽  
Jia-Sheng Rao ◽  
Xiao-Jiao Pei ◽  
Jian-Feng Lei ◽  
Zhan-Jing Wang ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Diffusion Tensor Imaging ◽  
Longitudinal Study ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
Contusion Injury ◽  
Spinal Cord Contusion ◽  
And Diffusion

Diffusion Tensor Imaging and Fiber Tractography of Patients with Cervical Spinal Cord Injury

2010 ◽  
Vol 27 (11) ◽  
pp. 2033-2040 ◽  
Author(s):  
Yongmin Chang ◽  
Tae-Du Jung ◽  
Dong Soo Yoo ◽  
Jung Keun Hyun
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Diffusion Tensor Imaging ◽  
Diffusion Tensor ◽  
Cervical Spinal Cord ◽  
Cervical Spinal Cord Injury ◽  
Fiber Tractography ◽  
Cord Injury
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