Submillimeter fMRI Acquisition using a dual-echo Rosette-k-space trajectory at 3T
Gianna Nossa, Humberto Monsivais, Seokkyoon Hong, Taewoong Park, Fethi Sila Erdil, Xin Shen, Ali Çağlar Özen, Serhat İlbey, Mark Chiew, Cecilia Steinwurzel, Zoe Kourtzi, Yen‐Yu Ian Shih, Uzay E. Emir
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Abstract
In this study, we overcome the technological barrier against acquiring submillimeter resolution (~ 0.5 mm) fMRI data at 3T via a novel dual-echo Rosette k-space design. This design results in fine representation of activation maps in two different functional tasks and might be a springboard in neuroimaging by providing a very high-resolution spatiotemporal dynamics of neural networks. The method will be further evolved with the feedback from the MRI community via the github platform as such for the further acceleration, inflow saturation and 3D coverage via 3D sampling and/or multiband approaches.