Abstract #3215
Slice-Accelerated Inversion Recovery T 1 Mapping
John W Grinstead 1 , Dingxin Wang 2 , Himanshu Bhat 3 , Vibhas Deshpande 4 , Stephen F Cauley 5 , Kawin Setsompop 5 , Thomas Benner 6 , Valerie C Anderson 7 , and William D Rooney 7
1
Siemens Healthcare, Portland, OR, United
States,
2
Siemens
Healthcare, MN, United States,
3
Siemens
Healthcare, MA, United States,
4
Siemens
Healthcare, TX, United States,
5
A.A.
Martinos Center for Biomedical Imaging, MA, United
States,
6
Siemens
Healthcare, Erlangen, Germany,
7
Oregon
Health & Science University, OR, United States
Parametric T
1
mapping
using inversion recovery has competing requirements for
speed, signal-to-noise ratio, spatial resolution,
anatomical coverage, and adequate sampling of the
longitudinal magnetization recovery. Slice-accelerated
multi-slice techniques utilize RF pulses which excite
multiple 2D slices simultaneously. We describe the
implementation and application of simultaneous
multi-slice techniques to accelerate quantitative T
1
mapping.
Compared to previous approaches, this provides extra
flexibility in the number of slices and inversion
recovery samples possible within a given measurement
time, and has the potential of making quantitative T
1
mapping
much more feasible and clinically practical.
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