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Abstract #2772

Parallel Imaging and Acceleration in the Johnson Noise Dominated Regime

Cristen D. LaPierre1, 2, Mathieu Sarracanie1, 2, Lawrence L. Wald1, 3, Matthew S. Rosen1, 2

1Department of Radiology, Mass General Hosptial, A.A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States; 2Department of Physics, Harvard University, Cambridge, MA, United States; 3Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, United States

Parallel imaging in the Johnson noise dominated regime is a new regime; optimal parameters are not available in the literature. In this study, an eight-coil receive only array for 6.5 mT was constructed and SENSE was used to accelerate images. An 8 channel receive only array was constructed from 8 cm, 30 turn, 24 gage wire inductive coils. The correlation coefficient matrix was almost the identity matrix. SENSE with a reduction factor of 2 was simulated and then acquired and images were successfully reconstructed. Future work will attempt higher reduction factors and combine SENSE with random undersampling.