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J4  2011, Vol. 45 Issue (3): 458-461    DOI: 10.3785/j.issn.1008-973X.2011.03.010
    
Tracking white matter fiber pathways based on moving least square
WU Zhan-xiong1,ZHU Shan-an1,BIN He2
1.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;
2.Department of Biomedical Engineering, University of Minnesota, Minneapolis 55455, USA
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Abstract  

In order to reconstruct the three-dimensional pathway of white matter fiber bundles, put forward with a three-dimensional tracking algorithm based on moving least square. Diffusion weighted imaging (DWI) data were converted to diffusion tensor imaging (DTI) data according the b-value and the table of magnetic gradients, and DTI data were filtered by Gaussian filter. Then cubic spline function was used as weighted function to fit the diffusion tensors. Under the conditions of provided bending angle and step distance, the tracking process began from the region of interest(ROI). The result based on a real DTI dataset shows that this method is suitable for the tracking of white matter (WM) fiber pathways macroscopically.



Published: 16 March 2012
CLC:  Q 64  
  R 312  
Cite this article:

WU Zhan-xiong,ZHU Shan-an,BIN He. Tracking white matter fiber pathways based on moving least square. J4, 2011, 45(3): 458-461.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2011.03.010     OR     http://www.zjujournals.com/eng/Y2011/V45/I3/458


基于移动最小二乘法的白质纤维束走向跟踪

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