Abstract #1187
Sodium inversion recovery MRI on the knee joint with an optimal inversion pulse
Jae-Seung Lee 1 , Ding Xia 1 , and Ravinder R. Regatte 1
1
Department of Radiology, New York
University, New York, NY, United States
In the filed of sodium MRI, IR has been a popular method
to discriminate the sodium content between different
environments. While adiabatic pulses, such as WURST
pulses, are usually used for the better inversion of the
magnetization vector under B
0
and
B
1
inhomogeneities,
RF shapes robust against the field inhomogeneities can
be obtained through numerical optimization based on
optimal control theory. In this work, we designed
optimal RF shapes to improve the performance of sodium
IR MRI of the knee joint, in terms of fluid suppression,
contrast between cartilage and artery, and SAR.
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