Modification of frequency response profiles of steady state free precession for 
magnetic resonance imaging (MRI)

Bieri, O; Scheffler, K

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Modification of frequency response profiles of steady state free precession for magnetic resonance imaging (MRI)

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https://patents.google.com/patent/US8274285
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Bieri, O., & Scheffler, K.(2012). Modification of frequency response profiles of steady state free precession for magnetic resonance imaging (MRI).

Cite as: https://hdl.handle.net/21.11116/0000-0001-A690-0

Abstract

Apparatus and methods for modification of the frequency response profile of steady-state free precession (SSFP) type of magnetic resonance imaging (MRI) sequences. Using alternating dephasing moments within succeeding radiofrequency (RF) excitation pulses, the frequency response function of SSFP sequences can be modified to different shapes such as near triangular or bell shaped. The particular response function as produced by alternating dephasing moments can be used, among others, for functional brain MRI, MR spectroscopy or spatial encoding.