Real-Time Shim Compensation in the Human Breast

Vincent Oltman Boer¹, Mariska P. Luttje¹, Alex A. Bhogal¹, Giel Mens², Hans Hoogduin¹, Peter R. Luijten¹, Dennis W.J. Klomp¹

Real-time control of the shim fields will allow for compensation of B₀ field variations in the human body caused by breathing, cardiac pulsation, non-voluntarily motion, scanner drift etc. In this work the feasibility of real-time measurement and updating of the shim fields is examined and applied to real-time measurement and correction of the B₀ field in the human breast at 7T.