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Abstract #4608

The influence of B0 drift on the performance of the PLANET method and an algorithm for correction

Yulia Shcherbakova1, Cornelis A.T. van den Berg2, Chrit T.W. Moonen1, and Lambertus W. Bartels1

1Center for Image Sciences, Imaging Division, UMC Utrecht, Utrecht, Netherlands, 2Department of Radiotherapy, Imaging Devision, UMC Utrecht, Utrecht, Netherlands

The PLANET method has been recently proposed to quantify the relaxation parameters T1 and T2, the banding free magnitude, the local off-resonance ∆f0, and the RF phase from RF phase-cycled balanced steady-state free precession (bSSFP) data. The PLANET model requires a static B0 field over the course of the acquisition. However, due to gradient activity, B0 drift can happen. In this work we present a study of the influence of B0 drift on the performance of the method and we propose a strategy for correction.

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