John Grinstead1, Valerie Anderson2, Manoj Sammi2, and William Rooney2
1Siemens Healthcare, Portland, OR, United States, 2Oregon Health & Science University, Portland, OR, United States
Parametric T1
mapping using inversion recovery has competing requirements for speed, SNR, spatial
resolution, anatomical coverage, and adequate sampling of the longitudinal
magnetization recovery. Potential sources
of slice-to-slice variability in quantitative T1 maps are investigated, including slice cross talk due to imperfect slice profiles, and the range of TIs used to
fit each slice. It is demonstrated that T1 relaxometry benefits
significantly from slice acceleration techniques in not only scan time &
slice coverage, but in its ability to reduce quantitative errors by allowing
the same TI sampling across all slices.
