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Functional Magnetic Resonance Imaging (fMRI) has been valuable to the current understanding of brain function and pre-operative evaluation of patients. In the recent years, the technique has been increasingly applied to the cases when the subject is at rest, also referred to as the resting-state fMRI. Resting-state fMRI measures spontaneous fluctuations in the blood oxygen level-dependent (BOLD) signal...
Sparse sampling has been demonstrated useful for spatiotemporal imaging. Functional MRI benefits from sparse sampling due to reduction of the readout duration which in turn makes the acquired data less prone to T2* susceptibility artifacts caused by magnetic field gradients near air-tissue interfaces. Conventional Fourier transform-based reconstruction method suffers from sparse sampling artifacts...
In functional MRI, it is often desirable to reduce the readout duration to make the acquired data less prone to susceptibility artifacts. In addition, a shorter readout length allows for a shorter minimum TE, which is important for optimizing SNR. This can be achieved by undersampling the -space. However, the conventional Fourier transform-based reconstruction method suffers from under-sampling...
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