Three-dimensional visualization of major white matter tracts by diffusion tensor imaging-based fiber tracking

2004 ◽  
Vol 1268 ◽  
pp. 703-706 ◽  
Author(s):  
Ch. Nimsky ◽  
O Ganslandt ◽  
A.G Sorensen ◽  
R Fahlbusch
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Diffusion Tensor ◽  
Three Dimensional ◽  
Fiber Tracking ◽  
White Matter Tracts

Preoperative and Intraoperative Diffusion Tensor Imaging-based Fiber Tracking in Glioma Surgery

Neurosurgery ◽  
2005 ◽  
Vol 56 (1) ◽  
pp. 130-138 ◽  
Author(s):  
Christopher Nimsky ◽  
Oliver Ganslandt ◽  
Peter Hastreiter ◽  
Ruopeng Wang ◽  
Thomas Benner ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Fractional Anisotropy ◽  
Diffusion Tensor ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Region Of Interest ◽  
Fiber Tracking ◽  
Glioma Surgery ◽  
White Matter Tracts

Abstract OBJECTIVE: To investigate the intraoperative displacement of major white matter tracts during glioma resection by comparing preoperative and intraoperative diffusion tensor imaging-based fiber tracking. METHODS: In 37 patients undergoing glioma surgery, preoperative and intraoperative diffusion tensor imaging was performed with a 1.5-T magnetic resonance scanner applying an echo-planar imaging sequence with six diffusion directions. For three-dimensional tractography, we implemented a knowledge-based multiple-region-of-interest approach applying user-defined seed regions in the color-coded maps of fractional anisotropy. Tracking was initiated in both the retrograde and orthograde directions according to the direction of the principal eigenvector in each voxel of the region of interest. The tractography results were also assigned color, applying the convention used in color-coded fractional anisotropy maps. RESULTS: Preoperative and intraoperative fiber tracking was technically feasible in all patients. Fiber tract visualization gave a quick and intuitive overview of the displaced course of white matter tracts in three-dimensional space. Comparison of preoperative and intraoperative tractography depicted a marked shifting of major white matter tracts during glioma removal. Maximum white matter tract shifting ranged from −8 to +15 mm (+2.7 ± 6.0 mm; mean ± standard deviation); in 29.7%, an inward and in 62.2%, an outward shifting was detected. CONCLUSION: Comparing preoperative and intraoperative fiber tracking visualizes a marked shifting and deformation of major white matter tracts because of tumor removal. This shifting emphasizes the need for an intraoperative update of navigation systems during resection of deep-seated tumor portions near eloquent brain areas. Fiber tracking is a method not only for preoperative neurosurgical visualization but also for further intraoperative planning.

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 Functional Diffusion Tensor Imaging: Measuring Task-Related Fractional Anisotropy Changes in the Human Brain along White Matter Tracts

PLoS ONE ◽  
2008 ◽  
Vol 3 (11) ◽  
pp. e3631 ◽  
Author(s):  
René C. W. Mandl ◽  
Hugo G. Schnack ◽  
Marcel P. Zwiers ◽  
Arjen van der Schaaf ◽  
René S. Kahn ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Human Brain ◽  
Fractional Anisotropy ◽  
Diffusion Tensor ◽  
White Matter Tracts

scholarly journals Diffusion tensor imaging of frontal lobe white matter tracts in schizophrenia

2006 ◽  
Vol 5 (1) ◽  
Author(s):  
Monte S Buchsbaum ◽  
Peter Schoenknecht ◽  
Yuliya Torosjan ◽  
Randall Newmark ◽  
King-Wai Chu ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
White Matter ◽  
Frontal Lobe ◽  
Diffusion Tensor ◽  
White Matter Tracts
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