Abstract #5230

Dynamic functional connectivity using multi-band multi-echo EPI (M2-EPI) imaging for resting-state fMRI

Junjie Wu¹, Shiyang Chen², Ganesh Chand³, Kyle Pate¹, Amit Saindane¹, and Deqiang Qiu¹

¹Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA, United States, ²Department of Biomedical Engineering, Georgia Institute of Technology & Emory University School of Medicine, Atlanta, GA, United States, ³Department of Medicine, Emory University School of Medicine, Atlanta, GA, United States

In this abstract, we evaluated dynamic functional connectivity (FC) using multi-band multi-echo EPI (M2-EPI) resting-state data, which has higher temporal resolution, less susceptibility related signal dropouts and better signal-to-noise ratio. Dynamic FC and its states can be observed using M2-EPI data. Reduced temporal variation in dynamic FC was found using M2-EPI data acquisition as compared to conventional single-shot EPI imaging. The use of M2-EPI BOLD imaging may help to better delineate the structure of resting-state functional networks.

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