Abstract #2390
Parallel 2D excitation of thin limited slice profiles
Denis Kokorin 1 , Jrgen Hennig 1 , and Maxim Zaitsev 1
1
Department of Radiology, Medical Physics,
University Medical Center Freiburg, Freiburg, Germany
The concept of parallel excitation allows for
substantial shortening of multidimensional pulses
designed for selection of arbitrarily-defined regions of
interests. In this work, the use of accelerated 2D
pulses is investigated experimentally for excitation of
slice profiles with a limited FOV. The excitation
trajectories used were based on EPI traversals in
transmit k-space and were undersampled by skipping the
PE lines. The feasibility of PEX was tested in a phantom
on a 3T MRI system with 8 RF channels. The advantages
and disadvantages of different Cartesian encoding
schemes are compared based on the experimental data
obtained.
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