Abstract #1459
Decoupled RF-Pulse Phase Sensitive B 1 Mapping
Daniel J. Park 1 , Neal K. Bangerter 1,2 , and Glen R. Morrell 2
1
Department of Electrical and Computer
Engineering, Brigham Young University, Provo, Utah,
United States,
2
Department
of Radiology, University of Utah, SLC, Utah, United
States
B
1
mapping
mapping is an important component of quantitative MRI
and parallel transmission. Although many B
1
mapping
methods have been introduced and analyzed, there is no
clear superior method. One method, the Bloch-Siegert
shift method, has potential for improved B
1
mapping
of parallel transmit arrays through separation of
excitation and the B
1
encoding
pulse. We introduce a modification to the Phase
Sensitive (PS) method that allows similar improvement by
decoupling the compound excitation pulse in the PS
method. We introduce a brief Monte Carlo based
statistical analysis (mean bias and standard deviation)
which illustrates the potential of this method.
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