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Abstract #2023

Swin golden angle: a radial profile order for golden ratio sampling with navigator compatibility and eddy-current suppression

Zhongsen Li1, Aiqi Sun2, Shuai Wang1, Chuyu Liu1, Sirui Wu1, Haozhong Sun1, Rui Guo3, Haiyan Ding1, and Rui Li1
1Center for Biomedical Imaging Research, Tsinghua University, Beijing, China, 2Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China, 3School of Medical Technology, Beijing Institute of Technology, Beijing, China

Synopsis

Keywords: Data Acquisition, Cardiovascular, golden angle radial, eddy-current suppresion, profile orderGolden angle radial trajectory suffers from eddy-current when combined with trueFISP sequence. If additional navigators are required, how to keep golden ratio sampling while maintain stable steady-state is still a problem to be solved. In this work, we propose a novel radial profile order, named "swin golden angle"(swinGA), which is able to achieve golden ratio sampling, stable trueFISP signal, and navigator acquisition simultaneously. We validated the proposed profile in static phantom study and in-vivo study for free-running cardiac imaging. The results show that the proposed swinGA significantly outperforms other sampling profiles and achieves good image quality.

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