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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