Abstract #1673
A simple method (eMoS) for T1 mapping is more accurate and robust than the Variable Flip Angle (VFA) method
Sofia Chavez 1,2
1
Centre for Addiction and Mental Health,
Toronto, Ontario, Canada,
2
Psychiatry,
University of Toronto, Toronto, Ontario, Canada
The purpose of this work is to present a simplified
method (eMoS) that can be used to compute T1 maps from
two low flip angle SPGR signal acquisitions if B1 maps
are known. A study of the effects of B1 errors and noise
on eMoS in contrast to the effect of these on the
standard variable flip angle (VFA) method can be used to
explain the observed differences in human brain, in
vivo, T1 maps. Simulations and human scans are used to
demonstrate the improved accuracy and noise robustness
of the eMoS relative to the VFA method for T1 mapping.
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