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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


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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