期刊
MAGNETIC RESONANCE IN MEDICINE
卷 61, 期 2, 页码 467-472出版社
WILEY
DOI: 10.1002/mrm.21819
关键词
muscle architecture; human MRI; tractography
资金
- NIH/NINDS [R01 NS034834]
- NIH/NIAMS [AR050101]
- NIH/NCRR [M01 RR 00095]
Diffusion tensor imaging-based fiber tracking in skeletal muscle has been used to reconstruct and quantify muscle architecture. In addition, the consistent pattern of muscle fiber geometry enables a quantitative assessment of the fiber tracking. This work describes a method to determine the accuracy of individual muscle fiber tracts based on the location at which the fibers terminate, the fiber path, and similarity to the neighboring fibers. In addition, the effect of different stop criteria settings on this quantitative assessment was investigated. Fiber tracking was performed on the tibialis anterior muscle of nine healthy subjects. Complete fiber tracts covered 89.4 +/- 9.6% and 75.0 +/- 15.2% of the aponeurosis area in the superficial and deep compartments, respectively. Applications of the method include the exclusion of erroneous fiber-tracking results, quantitative assessment of data set quality, and the assessment of fiber-tracking stop criteria. Magn Reson Med 61:467-472, 2009. (C) 2009 Wiley-Liss, Inc.
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