scholarly journals Quantitative assessment of DTI-based muscle fiber tracking and optimal tracking parameters

2009 ◽  
Vol 61 (2) ◽  
pp. 467-472 ◽  
Author(s):  
Anneriet M. Heemskerk ◽  
Tuhin K. Sinha ◽  
Kevin J. Wilson ◽  
Zhaohua Ding ◽  
Bruce M. Damon
Keyword(s):  
Muscle Fiber ◽  
Quantitative Assessment ◽  
Fiber Tracking ◽  
Optimal Tracking

scholarly journals Quantitative diffusion tensor MRI-based fiber tracking of human skeletal muscle

2007 ◽  
Vol 103 (2) ◽  
pp. 673-681 ◽  
Author(s):  
Drew A. Lansdown ◽  
Zhaohua Ding ◽  
Megan Wadington ◽  
Jennifer L. Hornberger ◽  
Bruce M. Damon
Keyword(s):  
Muscle Fiber ◽  
Diffusion Tensor ◽  
Fiber Tracking ◽  
Laboratory Frame ◽  
Mean Value ◽  
Pennation Angle ◽  
Frame Of Reference ◽  
Fiber Tracts ◽  
Angle Measurements ◽  
The Mean

Diffusion-tensor magnetic resonance imaging (DT-MRI) offers great potential for understanding structure-function relationships in human skeletal muscles. The purposes of this study were to demonstrate the feasibility of using in vivo human DT-MRI fiber tracking data for making pennation angle measurements and to test the hypothesis that heterogeneity in the orientation of the tibialis anterior (TA) muscle's aponeurosis would lead to heterogeneity in pennation angle. Eight healthy subjects (5 male) were studied. T1-weighted anatomical MRI and DT-MRI data were acquired of the TA muscle. Fibers were tracked from the TA's aponeurosis by following the principal eigenvector. The orientations of the aponeurosis and muscle fiber tracts in the laboratory frame of reference and the orientation of the fiber tracts with respect to the aponeurosis [i.e., the pennation angle (θ)] were determined. The muscle fiber orientations, when expressed relative to the laboratory frame of reference, did not change as functions of superior-to-inferior position. The sagittal and coronal orientations of the aponeurosis did not change in practically significant manners either, but the aponeurosis′ axial orientation changed by ∼40°. As a result, the mean value for θ decreased from 16.3 (SD 6.9) to 11.4° (SD 5.0) along the muscle's superior-to-inferior direction. The mean value of θ was greater in the deep than in the superficial compartment. We conclude that pennation angle measurements of human muscle made using DT-MRI muscle fiber tracking are feasible and reveal that in the foot-head direction, there is heterogeneity in the pennation properties of the human TA muscle.

scholarly journals Validation of diffusion tensor MRI-based muscle fiber tracking

2002 ◽  
Vol 48 (1) ◽  
pp. 97-104 ◽  
Author(s):  
Bruce M. Damon ◽  
Zhaohua Ding ◽  
Adam W. Anderson ◽  
Andrea S. Freyer ◽  
John C. Gore
Keyword(s):  
Muscle Fiber ◽  
Diffusion Tensor ◽  
Fiber Tracking ◽  
Diffusion Tensor Mri

Tongue muscle fiber tracking during tongue protrusion and rest

2006 ◽  
Vol 120 (5) ◽  
pp. 3354-3354
Author(s):  
Hideo Shinagawa ◽  
Emi Z. Murano ◽  
Jiachen Zhuo ◽  
Rao P. Gullapalli ◽  
Bennett Landman ◽  
...  
Keyword(s):  
Muscle Fiber ◽  
Fiber Tracking ◽  
Tongue Protrusion ◽  
Tongue Muscle

scholarly journals Tongue muscle fiber tracking during rest and tongue protrusion with oral appliances: A preliminary study with diffusion tensor imaging

2008 ◽  
Vol 29 (4) ◽  
pp. 291-294 ◽  
Author(s):  
Hideo Shinagawa ◽  
Emi Z. Murano ◽  
Jiachen Zhuo ◽  
Bennett Landman ◽  
Rao P. Gullapalli ◽  
...  
Keyword(s):  
Diffusion Tensor Imaging ◽  
Muscle Fiber ◽  
Diffusion Tensor ◽  
Fiber Tracking ◽  
Oral Appliances ◽  
Tongue Protrusion ◽  
Tongue Muscle ◽  
Preliminary Study

scholarly journals 3D virtual reconstruction and quantitative assessment of the human intervertebral disc’s annulus fibrosus: a DTI tractography study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dan Stein ◽  
Yaniv Assaf ◽  
Gali Dar ◽  
Haim Cohen ◽  
Viviane Slon ◽  
...  
Keyword(s):  
Annulus Fibrosus ◽  
Quantitative Assessment ◽  
Diffusion Tensor ◽  
Fiber Tracking ◽  
Quantitative Characterization ◽  
3D Microstructure ◽  
Virtual Reconstruction ◽  
Sufficient Degree ◽  
Diffusion Tensor Imaging Dti

AbstractThe intervertebral disc’s (IVD) annulus fibrosus (AF) retains the hydrostatic pressure of the nucleus pulposus (NP), controls the range of motion, and maintains the integrity of the motion segment. The microstructure of the AF is not yet fully understood and quantitative characterization is lacking, leaving a caveat in modern medicine’s ability to prevent and treat disc failure (e.g., disc herniation). In this study, we show a reconstruction of the 3D microstructure of the fibers that constitute the AF via MRI diffusion tensor imaging (DTI) followed by fiber tracking. A quantitative analysis presents an anisotropic structure with significant architectural differences among the annuli along the width of the fibrous belt. These findings indicate that the outer annuli's construction reinforces the IVD while providing a sufficient degree of motion. Our findings also suggest an increased role of the outer annuli in IVD nourishment.

scholarly journals DTI-based muscle fiber tracking of the quadriceps mechanism in lateral patellar dislocation

2009 ◽  
Vol 29 (3) ◽  
pp. 663-670 ◽  
Author(s):  
J. Herman Kan ◽  
Anneriet M. Heemskerk ◽  
Zhaohua Ding ◽  
Andrew Gregory ◽  
Gregory Mencio ◽  
...  
Keyword(s):  
Muscle Fiber ◽  
Patellar Dislocation ◽  
Fiber Tracking ◽  
Lateral Patellar Dislocation

scholarly journals Diffusion-tensor MRI-based skeletal muscle fiber tracking

2011 ◽  
Vol 3 (6) ◽  
pp. 675-687 ◽  
Author(s):  
Bruce M Damon ◽  
Amanda KW Buck ◽  
Zhaohua Ding
Keyword(s):  
Skeletal Muscle ◽  
Muscle Fiber ◽  
Diffusion Tensor ◽  
Fiber Tracking ◽  
Skeletal Muscle Fiber ◽  
Diffusion Tensor Mri

scholarly journals Repeatability of DTI-based skeletal muscle fiber tracking

2010 ◽  
Vol 23 (3) ◽  
pp. 294-303 ◽  
Author(s):  
Anneriet M. Heemskerk ◽  
Tuhin K. Sinha ◽  
Kevin J. Wilson ◽  
Zhaohua Ding ◽  
Bruce M. Damon
Keyword(s):  
Skeletal Muscle ◽  
Muscle Fiber ◽  
Fiber Tracking ◽  
Skeletal Muscle Fiber
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