Abstract #2551
Contribution of FOV Updating and Reacquisition to Estimates of Cortical Surface Measures in PROMO MPRAGE
Joelle E Sarlls 1 , Francois Lalonde 2 , Dan Rettmann 3 , Ajit Shankaranarayanan 4 , Vinai Roopchansingh 5 , and S. Lalith Talagala 1
1
NMRF/NINDS, National Institues of Health,
Bethesda, MD, United States,
2
NIMH,
National Institutes of Health, Bethesda, MD, United
States,
3
GE
Healthcare, Rochester, NY, United States,
4
GE
Healthcare, Menlo Park, CA, United States,
5
FMIRF/NIMH,
National Institutes of Health, Bethesda, MD, United
States
Prospective motion correction techniques, such as PROMO,
are increasingly available to improve the quality of
high resolution anatomical MRI. PROMO consists of two
parts, FOV updating and reacquisition of k-space data
when excessive motion is detected. Reacquisition of data
adds extra scan time, which is undesirable for pediatric
or patient studies where scan time is limited. The
contribution of each part of PROMO in reducing errors of
cortical surface reconstruction measures was
investigated. This study shows that utilizing either
part of PROMO improves accuracy of measures, but full
PROMO provides the greatest accuracy.
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