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Partially Spoiled Dual Echo Steady State Acquisitions (PDESS)

Introduction. Recently, an analytical solution for the steady state of SSFP sequences with RF phase cycling has been derived [1] and was extended to echo-shifted sequences. Conceptually being straightforward, the theory and effect of partial spoiling is extended to time-reversed steady-state free precession (SSFP-echo, also known under the acronyms PSIF, T2-FFE, CE-FAST). SSFP-echo has found application in diffusion weighted imaging and is of special interest in combination with SSFP-FID as dual echo steady state (DESS) acquisition for joint imaging. We will show that partial spoiling of dual echo steady state (pDESS) acquisitions is beneficial for improved morphological mapping of cartilage.