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Abstract #4191

Interleaved single-shot EPI for geometric distortion improvement

Hao Chen1, Shiwei Yang1, Sijie Zhong1, and Zhiyong Zhang1
1School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China

EPI is a versatile MRI acquisition method, which can ultrafast yield an image and has been widely applied. However, EPI is well-known sensitive to B0 inhomogeneities and susceptibility effects, which leading to geometrical image distortions. In order to reduce the geometric distortion on EPI images, this work presents a new interleaved single-shot EPI method, in which ky-t line can be sampled with higher slope rate such that the geometric distortion can be alleviated. The experimental results of phantom and human brain at 3T demonstrate the capability of the new method.

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