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Abstract #2178

Identifying Perfusion Deficits with Simultaneous Multi Slice Acceleration EPI Technique: A Non-Invasive Method

Tianyi Qian 1 , Zhigang Qi 2 , Mo Zhang 2 , Kun Zhou 3 , and Kuncheng Li 2

1 MR Collaborations NE Asia, Siemens Healthcare, Beijing, Beijing, China, 2 Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China, 3 Siemens Shenzhen Magnetic Resonance Ltd., Shenzhen, China

Simultaneous Multi slice acceleration (SMS) EPI technique provides a new tool for measuring the DSC-MR and BOLD signal with higher spatial and/or temporal resolution. In this study, we applied an iterative algorithm to extract the global pattern by averaging the time series of each voxel after re-alignment based on its time-shift. In addition, by using SMS EPI sequence for rs-fMRI data acquisition, higher temporal resolution (TR = 1000 ms) and higher spatial resolution can be achieved to provide more accurate results.

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