Abstract #1242
Skeletal Muscle Motion Maps from Post-Contraction Gradient Echo Spin Saturation Effect
Andrew D Davis 1 and Michael D Noseworthy 2,3
1
Medical Physics and Applied Radiation
Sciences, McMaster University, Hamilton, Ontario,
Canada,
2
Electrical
and Computer Engineering, McMaster University, Ontario,
Canada,
3
School
of Biomedical engineering, McMaster University, ON,
Canada
Gradient echo echo planar imaging (GRE-EPI) has often
been used to assess skeletal muscle, but not with
regards to muscle displacement. Muscle displacement
causes a signal re-saturation effect during GRE-EPI
scanning. In this study, GRE-EPI time series were
acquired, and post-exercise images were processed
voxel-wise to assess the saturation effect present.
Muscle displacement maps were generated from the
post-processing scheme. The maps were examined for
motion direction and proximity to the deep aponeuroses
of the triceps surae muscles, and were found to agree
with expectations for the plantar flexion exercise
performed.
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