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Abstract #0701

Spectroscopic Localization by Simultaneous Acquisition of the Double-Spin and Stimulated Echoes

Assaf Tal 1 and Oded Gonen 2

1 NYU Langone School of Medicine, New York, NY, United States, 2 Radiology, NYU Langone School of Medicine, New York, NY, United States

Localization is an essential requirement for almost all proton magnetic resonance spectroscopy (MRS) acquisitions. Localization modules either acquire the spin echo (e.g., PRESS, LASER, semi-LASER, etc) or the stimulated echo (STEAM). We propose a localization module which acquires both coherence pathways. Compared to PRESS, this substantially reduces chemical shift displacements, specific absorption rates, minimum TE and increases B1+ immunity, much like STEAM, but at only a modest reduction in signal to noise (i.e. without the 50% signal loss associated with STEAM).

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