期刊
NEUROIMAGE
卷 245, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.neuroimage.2021.118651
关键词
Diffusion MRI; fiber tracking; tractography; brain tumor; glioma; traumatic brain injury
资金
- NIH [R01 NS 100973, U01 CA 199459, P41 EB 015898]
- DoD [W81-XWH-1810413]
- USC Hanson-Thorell Research Scholarship
- Jennifer Oppenheimer Cancer Research Initiative
- Alba Tull Center for Neuro Imaging and Therapeutics - Tull Family Foundation
This review discusses the challenges of anatomical accuracy in fiber tracking, explores the impact of different white matter pathways on tracking methods, and summarizes the pros and cons of commonly-used techniques. Additionally, it introduces the progress in clinical applications of tractography in patients with brain tumors and traumatic brain injury, highlighting current limitations and future directions for development.
White matter fiber tracking using diffusion magnetic resonance imaging (dMRI) provides a noninvasive approach to map brain connections, but improving anatomical accuracy has been a significant challenge since the birth of tractography methods. Utilizing tractography in brain studies therefore requires understanding of its technical limitations to avoid shortcomings and pitfalls. This review explores tractography limitations and how different white matter pathways pose different challenges to fiber tracking methodologies. We summarize the pros and cons of commonly-used methods, aiming to inform how tractography and its related analysis may lead to questionable results. Extending these experiences, we review the clinical utilization of tractography in patients with brain tumors and traumatic brain injury, starting from tensor-based tractography to more advanced methods. We discuss current limitations and highlight novel approaches in the context of these two conditions to inform future tractography developments.
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