scholarly journals White matter microstructural abnormalities in children with spina bifida myelomeningocele and hydrocephalus: A diffusion tensor tractography study of the association pathways

2008 ◽  
Vol 27 (4) ◽  
pp. 700-709 ◽  
Author(s):  
Khader M. Hasan ◽  
Thomas J. Eluvathingal ◽  
Larry A. Kramer ◽  
Linda Ewing-Cobbs ◽  
Maureen Dennis ◽  
...  
Keyword(s):  
White Matter ◽  
Spina Bifida ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography

Diffusion tensor tractography of the temporal stem on the inferior limiting sulcus

2008 ◽  
Vol 108 (4) ◽  
pp. 775-781 ◽  
Author(s):  
Feng Wang ◽  
Tao Sun ◽  
Xing-Gang Li ◽  
Na-Jia Liu
Keyword(s):  
White Matter ◽  
Diffusion Tensor ◽  
Anterior Commissure ◽  
Region Of Interest ◽  
Diffusion Tensor Tractography ◽  
Optic Radiation ◽  
Uncinate Fasciculus ◽  
White Matter Tracts ◽  
Temporal Horn ◽  
Temporal Stem

Object The aim of this study was to use diffusion tensor tractography (DTT) to define the 3D relationships of the uncinate fasciculus, anterior commissure, inferior occipitofrontal fasciculus, inferior thalamic peduncle, and optic radiation and to determine the positioning landmarks of these white matter tracts. Methods The anatomy was studied in 10 adult human brain specimens. Brain DTT was performed in 10 healthy volunteers. Diffusion tensor tractography images of the white matter tracts in the temporal stem were obtained using the simple single region of interest (ROI) and multi-ROIs based on the anatomical knowledge. Results The posteroinferior insular point is the anterior extremity of intersection of the Heschl gyrus and the inferior limiting sulcus. On the inferior limiting sulcus, this point is the posterior limit of the optic radiation, and the temporal stem begins at the limen insulae and ends at the posteroinferior insular point. The distance from the limen insulae to the tip of the temporal horn is just one third the length of the temporal stem. The uncinate fasciculus comprises the core of the anterior temporal stem, behind which the anterior commissure and the inferior thalamic peduncle are located, and they occupy the anterior third of the temporal stem. The inferior occipitofrontal fasciculus passes through the entire temporal stem. The most anterior extent of the Meyer loop is located between the anterior tip of the temporal horn and the limen insulae. Most of the optic radiation crosses the postmedian two thirds of the temporal stem. Conclusions On the inferior limiting sulcus, the posteroinferior insular point is a reliable landmark of the posterior limit of the optic radiations. The limen insulae, anterior tip of the temporal horn, and posteroinferior insular point may be used to localize the white matter fibers of the temporal stem in analyzing magnetic resonance imaging or during surgery.

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 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

scholarly journals Diffusion tensor tractography in vanishing white matter disease

2011 ◽  
Vol 26 (2) ◽  
pp. 122-123
Author(s):  
S. Pérez-Sánchez ◽  
J.M. López-Domínguez ◽  
J. Ardúan ◽  
G. Izquierdo
Keyword(s):  
White Matter ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
White Matter Disease ◽  
Vanishing White Matter Disease ◽  
Vanishing White Matter

Interobserver Agreement of White Matter Tract Involvement in Gliomas with Diffusion Tensor Tractography

2019 ◽  
Vol 81 (03) ◽  
pp. 233-237 ◽  
Author(s):  
Ahmed Abdel Khalek Abdel Razek ◽  
Lamiaa El-Serougy ◽  
Amani Ezzat ◽  
Hany Eldawoody ◽  
Ahmad El-Morsy
Keyword(s):  
White Matter ◽  
Corpus Callosum ◽  
Interobserver Agreement ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
High Grade ◽  
White Matter Tract ◽  
Optic Radiation ◽  
Tract Involvement ◽  
High Grade Gliomas

Abstract Aim To assess with diffusion tensor tractography (DTT) the interobserver agreement of white matter tract involvement in patients with gliomas. Patient and Methods A prospective study was conducted on 35 patients (21 male, 14 female; age: 2–71 years) with gliomas that underwent DTT. Two independent readers assessed the patterns of involvement of the corticospinal tract, corpus callosum, optic radiation, and fasciculi as normal, edematous, displaced, infiltrated, or disrupted. Results Overall interobserver agreement of involvement of the white matter tracts was excellent (κ = 0.93; 95% confidence interval [CI], 0.91–0.95; p = 0.001). Interobserver agreement was excellent for involvement of corticospinal tracts (κ = 0.81; 95% CI, 0.57–1.00; p = 0.001), corpus callosum (κ = 0.91; 95% CI, 0.75–1.00; p = 0.001), optic radiation (κ = 0.77; 95% CI, 0.53–0.98; p = 0.001), and fasciculi (κ = 0.912; 95% CI, 0.81–0.99; p = 0.001. The interobserver agreement was excellent for tract edema (κ = 0.81; 95% CI, 0.57–1.00; p = 0.001), tract displacement (κ = 0.91; 95% CI, 0.75–1.00; p = 0.001), tract disruption (κ = 0.81; 95% CI, 0.57–1.00; p = 0.001), and good for tract infiltration (κ = 0.77; 95% CI, 0.53–0.98; p = 0.001). The interobserver agreement was excellent for white matter tract involvement in patients with low-grade gliomas (κ = 0.81; 95% CI, 0.57–1.00; p = 0.001) and high-grade gliomas (κ = 0.91; 95% CI, 0.75–1.00; p = 0.001). Conclusion DTT is a reliable and reproducible method for assessment of white matter tract involvement in patients with low- and high-grade gliomas.

Principal eigenvector field segmentation for reproducible diffusion tensor tractography of white matter structures

2011 ◽  
Vol 29 (8) ◽  
pp. 1088-1100 ◽  
Author(s):  
Ram K.S. Rathore ◽  
Rakesh K. Gupta ◽  
Shruti Agarwal ◽  
Richa Trivedi ◽  
Rajendra P. Tripathi ◽  
...  
Keyword(s):  
White Matter ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
Principal Eigenvector
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