Abstract #2357

Comparison of distortion correction with Echo Planar Imaging Correction and the 2D navigator based multi-shot SENSE EPI schemes

Yajing Zhang¹, Zhigang Wu², Xiuquan Hu³, Guangyu Jiang⁴, Jing Zhang³, Yan Zhao⁵, Marc Van Cauteren⁶, and Jiazheng Wang³

¹BU-MR Clinical Science, Philips Healthcare, Suzhou, China, ²Philips Healthcare (China), Shenzhen, China, ³Philips Healthcare (China), Beijing, China, ⁴BU-MR Clinical Application, Philips Healthcare, Suzhou, China, ⁵BU-MR R&D, Philips Healthcare, Suzhou, China, ⁶BU-MR Clinical Science, Philips Healthcare, Tokyo, Japan

Synopsis

Brain diffusion imaging by single shot EPI has remained challenging for the local B0 field variation, which leads to geometry distortion and signal inhomogeneity in the resulting images. In this study, we show that the brain single shot EPI image quality could be improved by correction of the geometric distortion and increased resolution, when compared to the traditional acquisition scheme. In-plane resolution of 1.2x1.2 mm² was achieved and the distortion correction was effectively reduced.

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