Abstract #4328

Concurrent use of 4 gradient axis enables eddy current compensation of an unshielded gradient insert coil

Tijl A van der Velden¹, Quincy van Houtum¹, Vincent O. Boer^1,2, Peter R. Luijten¹, Jeroen C.W. Siero^1,3, and Dennis W.J. Klomp¹

¹Radiology, University Medical Center Utrecht, Utrecht, Netherlands, ²Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Denmark, ³Spinoza Center for Neuroimaging, Amsterdam, Netherlands

In this work, a method is presented where a whole-body gradient system corrects for eddy currents induced by an unshielded gradient insert coil. A single-axis unshielded gradient breast insert coil was positioned in a 7 tesla whole body MR system. Field cameras were used to analyze the eddy currents and validate the proposed method.

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