scholarly journals IN VIVO STUDY OF CEREBRAL WHITE MATTER IN THE DOG USING DIFFUSION TENSOR TRACTOGRAPHY

2014 ◽  
Vol 56 (2) ◽  
pp. 188-195 ◽  
Author(s):  
Mitzi Sarahí Anaya García ◽  
Jael Sarahí Hernández Anaya ◽  
Oscar Marrufo Meléndez ◽  
José Luis Velázquez Ramírez ◽  
Ricardo Palacios Aguiar
Keyword(s):  
White Matter ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
In Vivo Study ◽  
Cerebral White Matter

Cerebral white matter damage in frontotemporal dementia assessed by diffusion tensor tractography

2008 ◽  
Vol 50 (7) ◽  
pp. 605-611 ◽  
Author(s):  
Koushun Matsuo ◽  
Toshiki Mizuno ◽  
Kei Yamada ◽  
Kentaro Akazawa ◽  
Takashi Kasai ◽  
...  
Keyword(s):  
White Matter ◽  
Frontotemporal Dementia ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
Cerebral White Matter ◽  
White Matter Damage

scholarly journals White matter maturation of normal human fetal brain. An in vivo diffusion tensor tractography study

2011 ◽  
Vol 1 (2) ◽  
pp. 95-108 ◽  
Author(s):  
Emilie Zanin ◽  
Jean‐Philippe Ranjeva ◽  
Sylviane Confort‐Gouny ◽  
Maxime Guye ◽  
Daniele Denis ◽  
...  
Keyword(s):  
White Matter ◽  
Diffusion Tensor ◽  
Fetal Brain ◽  
Diffusion Tensor Tractography ◽  
Human Fetal Brain ◽  
White Matter Maturation ◽  
Normal Human

scholarly journals Tumor Effects on Cerebral White Matter as Characterized by Diffusion Tensor Tractography

2007 ◽  
Vol 34 (1) ◽  
pp. 62-68 ◽  
Author(s):  
Corie W. Wei ◽  
Gang Guo ◽  
David J. Mikulis
Keyword(s):  
White Matter ◽  
Glioblastoma Multiforme ◽  
Anaplastic Astrocytoma ◽  
Diffusion Tensor ◽  
Case Series ◽  
Fiber Tracking ◽  
Cerebral White Matter ◽  
Fiber Tractography ◽  
Cerebral Neoplasm

Background:Diffusion tensor MRI fiber tractography (DTT) is the first non-invasive in vivo technique for delineating specific white matter (WM) tracts. In cerebral neoplasm, DTT can be used to illustrate the relationship of the tumor with respect to adjacent WM trajectories.Methods:Fiber tractography was used in this study to assess tumor-induced changes in WM trajectories in three cases of cerebral neoplasm: glioblastoma multiforme, meningioma, and anaplastic astrocytoma.Results:Three patterns of WM alteration were identified: 1) disruption, 2) displacement, and 3) infiltration. Tumor disruption of WM tracts was observed in glioblastoma multiforme, which terminated fibers crossing the corpus callosum. In meningioma, DTT illustrated bulk displacement of the corticospinal tract in the affected hemisphere as well as preservation of the deviated axons. In anaplastic astrocytoma, fiber tracking demonstrated disruption of WM tracts at the tumor origin as well as intact axons through areas of tumor infiltration.Conclusions:Fiber tracking results correlated with the clinical and histopathological features of the tumor. Larger case series will be required to determine if fiber tracking can add accuracy to existing imaging methods for grading tumors.

scholarly journals Tractography Alterations in the Arcuate and Uncinate Fasciculi in Post-Stroke Aphasia

2021 ◽  
Vol 11 (1) ◽  
pp. 53
Author(s):  
Sara Kierońska ◽  
Milena Świtońska ◽  
Grzegorz Meder ◽  
Magdalena Piotrowska ◽  
Paweł Sokal
Keyword(s):  
White Matter ◽  
Brain Connectivity ◽  
Three Dimensional ◽  
Cerebral White Matter ◽  
Neural Pathways ◽  
Uncinate Fasciculus ◽  
Arcuate Fasciculus ◽  
Fiber Tractography ◽  
Post Stroke

Fiber tractography based on diffuse tensor imaging (DTI) can reveal three-dimensional white matter connectivity of the human brain. Tractography is a non-invasive method of visualizing cerebral white matter structures in vivo, including neural pathways surrounding the ischemic area. DTI may be useful for elucidating alterations in brain connectivity resulting from neuroplasticity after stroke. We present a case of a male patient who developed significant mixed aphasia following ischemic stroke. The patient had been treated by mechanical thrombectomy followed by an early rehabilitation, in conjunction with transcranial direct current stimulation (tDCS). DTI was used to examine the arcuate fasciculus and uncinate fasciculus upon admission and again at three months post-stroke. Results showed an improvement in the patient’s symptoms of aphasia, which was associated with changes in the volume and numbers of tracts in the uncinate fasciculus and the arcuate fasciculus.

Sign in / Sign up

Export Citation Format

Share Document