Abstract #1606
Realtime B0 Inhomogeneity Correction In Multi-station Diffusion Imaging
Maggie M Fung 1 , Wu Gaohong 2 , Lloyd Estkowski 3 , Dan Xu 2 , Scott Hinks 2 , and Ersin Bayram 4
1
Global MR Applications and Workflow, GE
Healthcare, New York City, NY, United States,
2
Global
MR Applications and Workflow, GE Healthcare, Waukesha,
WI, United States,
3
Global MR Applications and
Workflow, GE Healthcare, Menlo Park, CA, United States,
4
Global
MR Applications and Workflow, GE Healthcare, Houston,
TX, United States
Diffusion weighted imaging (DWI) using single shot EPI
routinely suffers from distortion due to B0
inhomogeneity. The degree of distortion is proportional
to the B0 inhomogeneity, which increases non-linearly as
the distance from iso-center increases. This causes
mis-registration between stations in whole body
multi-station DWI and also limits the maximum SI
coverage per station that can be achieved. In this
study, we proposed a real-time method to detect &
correct the B0 offset per slice and demonstrated the
reduction in distortion. This real-time method does not
require additional reference scan or B0 map collections.
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