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Abstract #3240

Analytical Correction of Banding Artifacts in Driven Equilibrium Single Pulse Observation of T2 (DESPOT2)

Jean-David Jutras 1 , Keith Wachowicz 1,2 , and Nicola DeZanche 1,2

1 Oncology, University of Alberta, Edmonton, AB, Canada, 2 Medical Physics, Cross Cancer Institute, Edmonton, AB, Canada

DESPOT2 was proposed for fast, high-resolution, T 2 mapping but it is susceptible to banding artifacts induced by B 0 inhomogeneity, especially at 3T and higher fields. We have generalized the DESPOT2 technique by deriving an analytical expression for T 2 using two or more phase-cycled bSSFP images at varying flip angles. Our method can also be used to map B 0 inhomogeneity.

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