Abstract #3714
Simultaneous T1 and PRF MR Thermometry: Optimization of Flip Angles
Tetiana Dadakova 1 , Jan Gerrit Korvink 2,3 , John Matt Pavlina 1 , and Michael Bock 1
1
Medical Physics, Department of Diagnostic
Radiology, University Medical Center Freiburg, Freiburg,
Germany,
2
Department
of Microsystems EngineeringIMTEK, University of
Freiburg, Freiburg, Germany,
3
Freiburg
Institute of Advanced StudiesFRIAS, University of
Freiburg, Freiburg, Germany
MR thermometry is an important tool to monitor
efficiency and safety of different thermal treatment
methods. Two temperature-sensitive MR parameters are
used for temperature calculations: the proton resonance
frequency shift (PRF) and the longitudinal relaxation
time change (T1). A combination of these two methods
might allow for a more precise temperature monitoring
for example in fat where PRF techniques alone fail. In
this work, simulations and analytical calculations for
the optimal flip angle for combined PRF and T1 MR
thermometry are presented.
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