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Abstract #3667

Silent Sparse Sampling for Auditory FMRI

Todd Parrish1, Vibhas Deshpande2, Yu Fen Chen3

1Radiology, Northwestern University, Chicago, IL, USA; 2Siemens Medical Solutions; 3University of Pennsylvania

The goal of this study is to develop a truly silent sparse sampling method for auditory fMRI. By using a constant gradient during the silent period and playing the RF at the appropriate timing, the steady sate magnetization is maintained. Then a standard EPI module is played to capture the BOLD signal response. A burst sparse sampling is applied to make the sparse sampling more efficient. This will improve auditory fMRI investigations or simplified clinical applications without the need for a visual presentation.