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Abstract #4397

Improving breast imaging B1+ homogeneity with B1 shimming at 1.5T: a modeling study

Xin Chen1, Xin Li2, Danielle Kara3, Mingdong Fan3, Joseph Rispoli2, Michael Steckner1, and Robert Brown3

1Toshiba Medical Research Institute USA, Mayfield Village, OH, United States, 2Purdue University, West Lafayette, IN, United States, 3Case Western Reserve University, Cleveland, OH, United States

B1+ inhomogeneity is a challenge for breast imaging and B1 shimming is standard for all 3T clinical MRI applications. While B1+ homogeneity is typically better at 1.5T than 3T due to reduced wavelength effects, breast image quality is still challenged by B1+ inhomogeneity at 1.5T. This work shows B1 shimming can significantly improve B1+ homogeneity for breast imaging at 1.5T as compared to conventional quadrature drive.

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