Asymmetry analysis of cingulum based on scale-invariant parameterization by diffusion tensor imaging

Gong, Gaolang, Jiang, Tianzi, Zhu, Chaozhe, Zang, Yufeng, Wang, Fei, Xie, Sheng, Xiao, Jiangxi and Guo, Xuemei (2005) Asymmetry analysis of cingulum based on scale-invariant parameterization by diffusion tensor imaging. Human Brain Mapping, 24 2: 92-98. doi:10.1002/hbm.20072


Author Gong, Gaolang
Jiang, Tianzi
Zhu, Chaozhe
Zang, Yufeng
Wang, Fei
Xie, Sheng
Xiao, Jiangxi
Guo, Xuemei
Title Asymmetry analysis of cingulum based on scale-invariant parameterization by diffusion tensor imaging
Journal name Human Brain Mapping   Check publisher's open access policy
ISSN 1065-9471
1097-0193
Publication date 2005-02-28
Sub-type Article (original research)
DOI 10.1002/hbm.20072
Volume 24
Issue 2
Start page 92
End page 98
Total pages 7
Place of publication Hoboken, NJ, United States
Publisher John Wiley & Sons
Language eng
Formatted abstract
Current analysis of diffusion tensor imaging (DTI) is based mostly on a region of interest (ROI) in an image dataset, which is specified by users. This method is not always reliable, however, because of the uncertainty of manual specification. We introduce an improved fiber-based scheme rather than an ROI-based analysis to study in DTI datasets of 31 normal subjects the asymmetry of the cingulum, which is one of the most prominent white matter fiber tracts of the limbic system. The present method can automatically extract the quantitative anisotropy properties along the cingulum bundles from tractography. Moreover, statistical analysis was carried out after anatomic correspondence specific to the cingulum across subjects was established, rather than the traditional whole-brain registration. The main merit of our method compared to existing counterparts is that to find such anatomic correspondence in cingulum, a scale-invariant parameterization method by arc-angle was proposed. It can give a continuous and exact description on any segment of cingulum. More interestingly, a significant left-greater-than-right asymmetry pattern was obtained in most segments of cingulum bundle (-50-25 degrees), except in the most posterior portion of cingulum (25-50 degrees). © 2004 Wiley-Liss, Inc.
Keyword Asymmetry
Cingulum
Diffusion Anisotropy
DTI
Fiber-based analysis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes This article was published ahead of print on 28/09/04 and in print 2005. Please add to the ERA 2012. Thank you. Debbie McMurtrie

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Brain Institute Publications
ERA 2012 Admin Only
 
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Citation counts: TR Web of Science Citation Count  Cited 92 times in Thomson Reuters Web of Science Article | Citations
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Created: Wed, 19 Oct 2011, 03:23:22 EST by Debra McMurtrie on behalf of Queensland Brain Institute