Alexey V. Dimov1,2, Zhe Liu1,2, Pascal Spincemaille2, and Yi Wang1,2
1Department of Biomedical Engineering, Cornell University, Ithaca, NY, United States, 2Radiology Department, Weill Cornell Medical College, New York, NY, United States
Bone
quantitative susceptibility mapping (QSM) using standard IDEAL fat water/signal
model often suffers from erroneous labeling of water component. We propose a
new field estimation approach incorporating the negligible T2* decay of fat compared
to bone water signal, and modeling fat with multiple spectral peaks. This tissue
specific R2* multi-peak signal allows
robust field mapping from radial ultra-short TE gradient echo data, enabling in
vivo bone QSM with consistent high quality.
