Abstract #0167

On pseudo-concomitant fields caused by gradient coil vibrations

Yi-Cheng Hsu^1,2, Ying-Hua Chu^1,2, Fa-Hsuan Lin², and Maxim Zaitsev¹

¹Dept. of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, Freiburg, Germany, ²Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan

We demonstrate that a negative quadratic phase accrual, which we term a pseudo-concomitant field, is likely to be caused by gradient vibration and has a nearly constant spatial distribution. Accounting for this effect may be of importance for phase-sensitive MR applications utilizing strong gradients, such as flow imaging.

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