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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