Abstract #3679
19F MRI QUANTIFICATION USING B1 CORRECTION
Ina Vernikouskaya 1 , Alexander Pochert 2 , and Volker Rasche 1
1
Internal Medicine II, University Hospital of
Ulm, Ulm, Baden-Wuerttemberg, Germany,
2
Inorganic
Chemistry II, University of Ulm, Ulm,
Baden-Wuerttemberg, Germany
In contrast to conventional MR contrast agents, 19F
signal can be directly measured, instead of indirect
measuring the impact on the surrounding environment.
However inhomogeneous profile of the excitation field
can lead to wrong quantitative results. Therefore B1
mapping has to be performed prior to quantification.
Adaptation of one of the existing B1 technique to the
problem of 19F signal quantification is proposed in this
work. In vitro results are in a good correlation with
the simulation prediction. Estimation error for the
relative quantification after B1 correction is within
6-7%.
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