DocumentCode :
2522223
Title :
TWO-TENSOR FIBER TRACTOGRAPHY
Author :
Bergmann, ørjan ; Kindlmann, Gordon ; Peled, Sharon ; Westin, Carl-Fredrik
Author_Institution :
Lab. for Math. in Imaging, Harvard Med. Sch., Boston, MA
fYear :
2007
fDate :
12-15 April 2007
Firstpage :
796
Lastpage :
799
Abstract :
Estimating white matter fiber pathways from a diffusion tensor MRI dataset has many important applications in medical research. However, the standard approach of performing tracking on single-tensor estimates per voxel is confounded by regions of multiple pathways in different directions. Building on previous work for estimating multiple tensors from MR value partitioning, we present here a two-tensor fiber tractography method that estimates two tensors from the acquired MR values, interpolated at each step of the path, and follows the tensor most aligned with the current direction. The method is verified on a synthetic dataset and applied to two locations of fiber crossing in an in vivo diffusion MRI
Keywords :
biodiffusion; biomedical MRI; brain; medical image processing; neurophysiology; tensors; tracking; MR value partitioning; diffusion tensor; fiber crossing; in vivo diffusion MRI; magnetic resonance imaging; medical research; multiple tensors; single-tensor estimates; tracking; two-tensor fiber tractography; white matter fiber pathways; Anatomy; Anisotropic magnetoresistance; Biomedical imaging; Diffusion tensor imaging; In vivo; Laboratories; Magnetic resonance imaging; Mathematics; Nonlinear equations; Tensile stress;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Imaging: From Nano to Macro, 2007. ISBI 2007. 4th IEEE International Symposium on
Conference_Location :
Arlington, VA
Print_ISBN :
1-4244-0672-2
Electronic_ISBN :
1-4244-0672-2
Type :
conf
DOI :
10.1109/ISBI.2007.356972
Filename :
4193406
Link To Document :
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