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Abstract #1861

Robust and fast RF pulse design of rectangle excitations using a hybrid CNN framework with signal modeling

Yajing Zhang1, Guohui Ruan1, Yan Zhao2, Xianrui Huang2, and Marc Van Cauteren3
1BU-MR Clinical Science, Philips Healthcare, Suzhou, China, 2BU-MR R&D, Philips Healthcare, Suzhou, China, 3BU-MR Clinical Science, Philips Healthcare, Tokyo, Japan

Synopsis

Radio frequency (RF) pulses play a key role in magnetic resonance imaging. However, current MRI systems mostly use pre-defined RF waveforms with minimal adaptions. In this work, we propose a novel hybrid framework to combine convolutional neural network (CNN) with signal modeling by feature extractions. The result demonstrates that the proposed method provides more robust pulse design estimation result than using a generalized CNN framework for any desired rectangle excitations.

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