J
2014
Symmetry of the Fornix Using Diffusion Tensor Imaging
SBOTO-FRANKENSTEIN, Uta N., Tiffany LAZAR, Bruce R. BOLSTER, Sunny THIND, Patricia Dreessen DE GERVAI et. al.
Basic information
Original name
Symmetry of the Fornix Using Diffusion Tensor Imaging
Authors
SBOTO-FRANKENSTEIN, Uta N. (124 Canada), Tiffany LAZAR (124 Canada), Bruce R. BOLSTER (124 Canada), Sunny THIND (124 Canada), Patricia Dreessen DE GERVAI (124 Canada), Marco L.H. GRUWEL (124 Canada), Stephen D. SMITH (124 Canada) and Boguslaw TOMANEK (616 Poland, guarantor, belonging to the institution)
Edition
Journal of Magnetic Resonance Imaging, Hoboken (USA), Wiley- Blackwell, 2014, 1053-1807
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
30000 3. Medical and Health Sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 3.210
RIV identification code
RIV/00216224:14740/14:00075878
Organization unit
Central European Institute of Technology
Keywords in English
Asymmetry; Diffusion tensor imaging; Fornix; TBSS; Tractography
Tags
International impact, Reviewed
V originále
Purpose: To: 1) Present fornix tractography in its entirety for 20 healthy individuals to assess variability. 2) Provide individual and groupwise whole tract diffusion parameter symmetry assessments prior to clinical application. 3) Compare whole tract diffusion parameter assessments with tract-based spatial statistics (TBSS). Materials and Methods: Diffusion tensor imaging (DTI) data were acquired on a 3T Siemens magnetic resonance imaging (MRI) system using a single-shot spin echo planar imaging (EPI) sequence. Individual fornix tractography was conducted and whole tract diffusion parameter symmetries assessed. Whole tract results were compared with asymmetry contrasts conducted with voxelwise statistical analysis of diffusion parameters using TBSS. Results: The fornix tract could be visualized in its entirety including the columns, body, crura, and fimbria. Contrary to the crus and body, there were some tractography inconsistencies of the columns and fimbria across subjects. Although whole tract diffusion parameter asymmetries were nonsignificant, fractional anisotropy (FA) values bordered on statistical significance (P = 0.052). Using TBSS, significant FA asymmetries were identified (P less than or equal 0.01, corrected). Conclusion: The findings demonstrate consistency of fornix tractography as well as some variability in the columns and fimbria. While parametric assessment demonstrates diffusion parameter symmetry, permutation-based TBSS analysis reveals significant FA asymmetries in the crura and fimbriae. © 2013 Wiley Periodicals, Inc.
Displayed: 12/11/2024 03:40