Performance Analysis of the Two Spectroscopic Imaging Sequences LRE and EPSI

Rudolf Fritz Fischer¹, Kilian Weiss¹, Christof Baltes¹, Markus Rudin¹, Peter Boesiger¹, Sebastian Kozerke¹

We compare the sensitivity of the two spectroscopic imaging sequences Echo Planar Spectroscopic Imaging (EPSI) and Linear Response Equilibrium (LRE), a steady state free precession sequence with intrinsic suppression of periodic bands. Simulations and phantom experiments were performed revealing a good SNR performance of LRE especially at low spectral bandwidth.