Sonal Josan1,2, Yi-Fen Yen3, Ralph Hurd3, Adolf Pfefferbaum4, Daniel Spielman2, Dirk Mayer, 12
1SRI International, Menlo Park, CA, United States; 2Radiology, Stanford University, Stanford, CA, United States; 3Applied Sciences Laboratory, GE Healthcare, Menlo Park, CA, United States; 4Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, United States
Undersampled spiral CSI (spCSI) with free induction decay (FID) acquisition allows real-time metabolic imaging of hyperpolarized 13C. Phase correction of the FID acquisition can be difficult, especially with contributions from aliased out-of-phase peaks. This work extends the spCSI sequence to incorporate a double spin-echo obtaining high quality spectra in magnitude mode. It also provides an added benefit of attenuating signal from flowing spins.