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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