Abstract #4927

Uniform flip angle 3D tailored excitation for MR breast imaging at 3T

Yi-Cheng Hsu^1,2, Sebastian Littin², Ying-Hua Chu^1,2, Fa-Hsuan Lin^1,3, and Maxim Zaitsev²

¹Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, ²Medical Physics, Department of Radiology, University Medical Center Freiburg, Freiburg, Germany, ³Department of Neuroscience and Biomedical Engineering, Aalto University, Espoo, Finland

We proposed a two pulses excitation method using the linear gradients to achieve uniform 3D breast excitation. Different to previous studies, we don't need extra hardware and this method is applicable to all MRI systems. Compared to conventional excitation method, our method was able to achieve a more uniform flip angle (8.24% to 5.6%) and the mean flip angle difference between the left and the right breast was improved from 10.2% to 1.5%.

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