Abstract #4016
A Comparison of STEAM and TRSE Diffusion Tensor Imaging for Tracking Muscle Fibers
Peter A Hardy 1,2 , Anders Andersen 2,3 , Thorsten Feiweier 4 , Bruce Damon 5 , and Brian Noehren 6
1
Radiology, University of Kentucky,
Lexington, Kentucky, United States,
2
MRISC,
University of Kentucky, Lexington, Kentucky, United
States,
3
Anatomy
& Neurobiology, University of Kentucky, Lexington,
Kentucky, United States,
4
Healthcare
Sector, Siemens AG, Erlangen, Germany,
5
Institute
of Imaging Science, Vanderbilt University, Nashville,
Tennessee, United States,
6
Rehabilitation
Sciences, University of Kentucky, Lexington, Kentucky,
United States
In ten normal volunteers we compared standard
Twice-Refocused Spin echo against STEAM diffusion tensor
imaging for imaging the thigh. From the diffusion tensor
images produced by each technique we tracked muscle
fiber bundles in the Vastus Lateralus and from these
estimated the pennation angle. STEAM produced superior
images from which we generated improved tracking of
fiber bundles and estimated the muscle pennation angle
with lower variance. STEAM-DTI will give more sensitive
measures for evaluation of muscle injury and the effects
of therapy.
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