Improved BOLD detection at 3T using High-Resolution GRAPPA EPI fMRI
نویسندگان
چکیده
D. Mintzopoulos, L. G. Astrakas, G. C. Wiggins, L. L. Wald, B. R. Rosen, and A. A. Tzika NMR Surgical Laboratory, Department of Surgery, and Shriners Burn Institute, Massachusetts General Hospital, Boston, MA, United States, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA, United States, Athinoula A. Martinos Center for Biomedical Imaging and Dept. of Radiology, Massachusetts General Hospital, Boston, MA, United States
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fMRI Using GRAPPA EPI with High Spatial Resolution Improves BOLD Signal Detection at 3T
We compared GRAPPA parallel MRI (pMRI) to regular MRI (non-GRAPPA) for BOLD fMRI while keeping all other parameters fixed. We acquired both GRAPPA and non-GRAPPA images using a high resolution as well as a low resolution EPI matrix. We found significantly larger values of percent BOLD signal when comparing higher resolution acquisitions to lower resolution ones, independently of whether data we...
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