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. Oshinski^2,3

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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