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Abstract #1410

Accelerated multiplexed-EPI with PSF-based distortion correction at 9.4T

Seong Dae Yun 1 and N. Jon Shah 1,2

1 INM - 4, Research Centre Jlich GmbH, Jlich, Germany, 2 Department of Neurology, RWTH Aachen University, Aachen, Germany

The relatively high imaging speed of EPI has led to its widespread use in dynamic MRI studies. The performance of the EPI can be improved by combining it with in-plane acceleration techniques such as multi-shot, parallel MRI and EPI with Keyhole (EPIK). For even faster volumetric acquisition in EPI, the multiplexed-EPI (M-EPI) method has also been presented (Feinberg et al.). This study i) verifies the use of the in-plane acceleration techniques on the M-EPI at 9.4T and ii) quantitatively assesses the performance of each imaging method. Lastly, the robust removal of geometric distortions is demonstrated with the PSF-based correction method.

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