Symmetry of the Fornix Using Diffusion Tensor Imaging

SBOTO-FRANKENSTEIN, Uta N., Tiffany LAZAR, Bruce R. BOLSTER, Sunny THIND, Patricia Dreessen DE GERVAI, Marco L.H. GRUWEL, Stephen D. SMITH and Boguslaw TOMANEK. Symmetry of the Fornix Using Diffusion Tensor Imaging. Online. Journal of Magnetic Resonance Imaging. Hoboken (USA): Wiley- Blackwell, 2014, vol. 40, No 4, p. 929-936. ISSN 1053-1807. Available from: https://dx.doi.org/10.1002/jmri.24424. [citováno 2024-04-23]

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

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 30000 3. Medical and Health Sciences
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 3.210
• RIV identification code: RIV/00216224:14740/14:00075878
• Organization unit: Central European Institute of Technology
• Doi: http://dx.doi.org/10.1002/jmri.24424
• UT WoS: 000342342500022
• Keywords in English: Asymmetry; Diffusion tensor imaging; Fornix; TBSS; Tractography
• Tags: kontrola MP, MP, rivok, SCOPUS
• Tags: International impact, Reviewed

Abstract

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.