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Abstract #0336

Regional Brain Motion Varies with Subject Positioning: A Study Using Displacement Encoding with Stimulated Echoes (DENSE)

Xiaodong Zhong1, Zihan Ye2, Tucker Lancaster3, Deqiang Qiu3, Brian M. Dale4, Amit Saindane3, and John N. Oshinski2,3

1MR R&D Collaborations, Siemens Healthcare, Atlanta, GA, United States, 2Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, United States, 3Department of Radiology and Imaging Sciences, Emory University, Atlanta, GA, United States, 4MR R&D Collaborations, Siemens Healthcare, Cary, NC, United States

Displacement encoding with stimulated echoes (DENSE) with high motion sensitivity was used to investigate the influence of subject position (prone versus supine) on regional brain motion. Preliminary results in 9 volunteers demonstrated that there is a significant difference in displacement with a change in position. Displacements were significantly increased in the frontal lobe going from the prone to the supine position and significantly increased in the occipital lobe going from the supine to the prone position.

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