scholarly journals Diffusion Tensor Tractography in Cerebral White Matter

10.5772/66249 ◽  
2016 ◽  
Author(s):  
Mitzi Sarahi Anaya García ◽  
Jael Sarahi Hernández Anaya
Keyword(s):  
White Matter ◽  
Diffusion Tensor ◽  
Diffusion Tensor Tractography ◽  
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 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

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.

Diffusion Tensor Imaging and Fiber Tractography

2009 ◽  
pp. 229-246
Author(s):  
Evanthia E. Tripoliti ◽  
Dimitrios I. Fotiadis ◽  
Konstantia Veliou
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Diffusion Tensor ◽  
Brain Regions ◽  
Cerebral White Matter ◽  
Tissue Microstructure ◽  
Diffusion Weighted Images ◽  
Fiber Tracts ◽  
Diffusion Weighted ◽  
Magnetic Resonance Imaging Mri

Diffusion Tensor Imaging (DTI) is a magnetic resonance imaging (MRI) modality which can significantly improve our understanding of the brain structures and neural connectivity. DTI measures are thought to be representative of brain tissue microstructure and are particularly useful for examining organized brain regions, such as white matter tract areas. DTI measures the water diffusion tensor using diffusion weighted pulse sequences which are sensitive to microscopic random water motion. The resulting diffusion weighted images (DWI) display and allow quantification of how water diffuses along axes or diffusion encoding directions. This can help to measure and quantify the tissue’s orientation and structure, making it an ideal tool for examining cerebral white matter and neural fiber tracts. In this chapter the authors discuss the theoretical aspects of DTI, the information that can be extracted from DTI data, and the use of the extracted information for the reconstruction of fiber tracts and the diagnosis of a disease. In addition, a review of known fiber tracking algorithms is presented.

Diffusion Tensor Imaging of Cerebral White Matter*

2008 ◽  
Vol 18 (3) ◽  
pp. 155-162 ◽  
Author(s):  
Peter Stoeter ◽  
Paulo Roberto Dellani ◽  
Goran Vucurevic
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Diffusion Tensor ◽  
Cerebral White Matter
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