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Abstract #4322

Improved fat suppression in diffusion MRI using eddy current compensation gradient

Wei Liu1, Michael Koehler2, Flavio Carinci2, Adam Kettinger2, Thorsten Feiweier2, Kun Zhou1, and Mario Zeller2
1Siemens Shenzhen Magnetic Resonance Ltd, Shenzhzen, China, 2Siemens Healthcare GmbH, Erlangen, Germany


In this work, we propose to compensate the residual eddy current field caused by diffusion gradients at the time when chemically selective fat suppression gets applied with an additional gradient applied after the EPI readout. Using an analytic solution, the amplitude of the eddy currents can be cancelled under certain assumptions. The experimental results based on a volunteer scan demonstrate improved fat suppression in diffusion MRI with the proposed method.

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