The goals of fMRI acquisition methods include high spatial and temporal resolutions with high signal to noise ratio (SNR). Oscillating Steady-State Imaging (OSSI) is a new fMRI acquisition method that provides large signals with high SNR, but may result in a slower acquisition of modest spatial resolution. This work improves OSSI spatial and temporal resolutions by exploiting the inherent high-dimensional structure of OSSI data and developing a tensor low-rank model for OSSI prospectively undersampled reconstruction. Compared to GRE imaging with the same spatial-temporal resolution, 3D OSSI demonstrated 2 times higher temporal SNR and 2 times larger activation region.
This abstract and the presentation materials are available to members only; a login is required.