Martin Haas1, Jeff Snyder1, Stefanie Buchenau1, Denis Kokorin1, 2, Johannes T. Schneider1, 3, Peter Ullmann3, Jrgen Hennig1, Maxim Zaitsev1
1Department of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany; 2International Tomography Center, Novosibirsk, Russian Federation; 3Bruker BioSpin MRI GmbH, Ettlingen, Germany
Spatially selective excitation of an arbitrary three-dimensional target pattern is demonstrated in vivo in the head of a volunteer at 3T for the first time. A parallel transmit system with eight independent RF channels is used in combination with a slew-optimized single-shot 3D shells trajectory. The good excitation fidelity allows for the reduction of the field of view below the extent of the head and consequently for a shorter acquisition with higher spatial resolution.
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