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Abstract #4890

Design of a nonlinear human-breast gradient coil with controllable gradient variation

Feng Jia1, Philipp Amrein1,2, Maxim Zaitsev1, and Sebastian Littin1
1Division of Medical Physics, Department of Diagnostic and Interventional Radiology, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany, 2Neoscan-Solutions GmbH, Magdeburg, Germany

Synopsis

Keywords: Gradients, Gradients

Motivation: To assess diffusion metrics on a cellular scale necessitates much higher gradient amplitudes. A local nonlinear breast gradient coil needs methods of controlling the field variation during the coil design stage.

Goal(s): Control the y-axis gradient variation of a double layer local breast gradient coil to achieve far above 1T/m in the whole target region.

Approach: Incorporation of a constraint to control the variation of the gradient along the y-axis with a double-layer current-carrying surface.

Results: A non-linear local human breast gradient coil with a gradient strength between 1.61 and 3.74 T/m for a current of 650 A was designed.

Impact: The coil design with a subsequent implementation paves the way to the application of novel diffusion imaging techniques for the detection and characterization of breast cancer.

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