In vivo fiber tractography using DT-MRI data
Article first published online: 2 OCT 2000
Published 2000 Wiley-Liss, Inc.
Magnetic Resonance in Medicine
Volume 44, Issue 4, pages 625–632, October 2000
How to Cite
Basser, P. J., Pajevic, S., Pierpaoli, C., Duda, J. and Aldroubi, A. (2000), In vivo fiber tractography using DT-MRI data. Magn Reson Med, 44: 625–632. doi: 10.1002/1522-2594(200010)44:4<625::AID-MRM17>3.0.CO;2-O
- Issue published online: 2 OCT 2000
- Article first published online: 2 OCT 2000
- Manuscript Accepted: 5 JUN 2000
- Manuscript Revised: 2 JUN 2000
- Manuscript Received: 27 JAN 2000
- NSF. Grant Number: DMS-9805483
- white matter;
Fiber tract trajectories in coherently organized brain white matter pathways were computed from in vivo diffusion tensor magnetic resonance imaging (DT-MRI) data. First, a continuous diffusion tensor field is constructed from this discrete, noisy, measured DT-MRI data. Then a Frenet equation, describing the evolution of a fiber tract, was solved. This approach was validated using synthesized, noisy DT-MRI data. Corpus callosum and pyramidal tract trajectories were constructed and found to be consistent with known anatomy. The method's reliability, however, degrades where the distribution of fiber tract directions is nonuniform. Moreover, background noise in diffusion-weighted MRIs can cause a computed trajectory to hop from tract to tract. Still, this method can provide quantitative information with which to visualize and study connectivity and continuity of neural pathways in the central and peripheral nervous systems in vivo, and holds promise for elucidating architectural features in other fibrous tissues and ordered media. Magn Reson Med 44:625–632, 2000. Published 2000 Wiley-Liss, Inc.