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Abstract #0551

Rapid Method of Mapping Eddy Current Fields

Andrew J. Wheaton1, Wayne R. Dannels1

1Toshiba Medical Research Institute USA, Mayfield, OH, United States

The purpose of this investigation is to develop a rapid method of volumetric field mapping for the purpose of measuring linear and higher-order eddy current-induced gradient fields. The method includes a novel pulse sequence using a grid tag module to sensitize the magnetization to eddy-induced moment accumulation. Any conventional sequence can be used for detection thus enabling fast acquisition. Results are shown on a commercial scanner demonstrating eddy current maps with higher order spherical harmonic terms acquired in less than 20 seconds.