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Abstract #2941

Multi-slice localized parallel excitation for DWI with a reduced FOV in the spinal cord

Denis Kokorin 1 , Jrgen Hennig 1 , and Maxim Zaitsev 1

1 Department of Radiology, Medical Physics, University Medical Center Freiburg, Freiburg, Germany

Parallel spatially-selective excitation allows for a reduction of the FOV along the PE direction. This concept was developed and examined for multi-slice inner volume imaging of the spinal cord in this work. The method was tested in humans for DWI applications on a 3T MRI system with an 8-channel TxArray extension combined with an 8-channel transmit array. An advantage of using parallel excitation includes shorter durations of multidimensional pulses. Nonetheless, technological challenges must be overcome before the method presented can be used in clinical practice. This study describes initial experience obtained in the spinal cord with parallel transmission and discusses the advantages and disadvantages of employing 2D parallel excitation.

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