Abstract #2807
Investigations on Motion Corruption for Diffusion Weighted Imaging from Population Analysis
Yishi Wang 1 , Zhe Zhang 1 , Xue Zhang 1 , Xuesong Li 1 , Sheng Xie 2 , Chun Yuan 1,3 , and Hua Guo 1
1
Center for Biomedical Imaging Research,
Department of Biomedical Engineering, School of
Medicine, Tsinghua University, Beijing, China,
2
Department
of Radiology, China-Japan Friendship Hospital, Beijing,
China,
3
Department
of Radiology, University of Washington, Seattle,
Washington, United States
Pulsatile brain motion can induce DTI data corruption
and affects DTI metrics. Data rejection methods in both
image domain and k-space domain have been proposed. In
this study, we use large cohort data to evaluate the
data rejection rate in k-space in order to investigate
the extent to which a specific region suffers from
motion. A map of data rejection rate on a standard brain
template was obtained from the mean of 77 subjects.
Motion affection was quantified and suggestions on data
acquisition scheme were given based on the statistical
results.
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