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Abstract #4433

Selective Excitation of Arbitrary Three-Dimensional Targets on a Human MR System using Parallel Transmit

Martin Haas1, Jeff Snyder1, Johannes T. Schneider1,2, Peter Ullmann2, Denis Kokorin1,3, Hans-Peter Fautz4, Jrgen Hennig1, Maxim Zaitsev1

1Department of Radiology Medical Physics, University Medical Center Freiburg, Freiburg, Germany; 2Bruker BioSpin MRI GmbH, Ettlingen, Germany; 3International Tomography Center, Novosibirsk, Russian Federation; 4Siemens Healthcare, Erlangen, Germany

Spatially selective excitation of an arbitrarily shaped three-dimensional target volume is demonstrated on a human MR scanner at 3T, accelerated by means of 8-channel parallel transmission. The good excitation fidelity and effective restoration of magnetization outside the volume of interest to the longitudinal direction allows for a reduction of the readout field of view in all three dimensions, resulting in an increase of resolution by a factor of two in all three directions while maintaining the measurement time.