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. 2011 Dec;41(12):1578-82.
doi: 10.1007/s00247-011-2205-1. Epub 2011 Jul 21.

Prospective motion correction improves diagnostic utility of pediatric MRI scans

Joshua M Kuperman  1 , Timothy T Brown, Mazyar E Ahmadi, Matthew J Erhart, Nathan S White, J Cooper Roddey, Ajit Shankaranarayanan, Eric T Han, Dan Rettmann, Anders M Dale
Affiliations

Prospective motion correction improves diagnostic utility of pediatric MRI scans

Joshua M Kuperman et al. Pediatr Radiol. 2011 Dec.

Abstract

A new technique for prospectively correcting head motion (called PROMO) during acquisition of high-resolution MRI scans has been developed to reduce motion artifacts. To evaluate the efficacy of PROMO, four T1-weighted image volumes (two with PROMO enabled, two uncorrected) were acquired for each of nine children. A radiologist, blind to whether PROMO was used, rated image quality and artifacts on all sagittal slices of every volume. These ratings were significantly better in scans collected with PROMO relative to those collected without PROMO (Mann-Whitney U test, P < 0.0001). The use of PROMO, especially in motion-prone patients, should improve the accuracy of measurements made for clinical care and research, and potentially reduce the need for sedation in children.

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Figures

Fig. 1
Fig. 1
Examples of image quality ratings provided by a clinical radiologist. The slice rating is shown in the top left corner of each representative image
Fig. 2
Fig. 2
Number of images rated at each quality level with PROMO on and PROMO off
Fig. 3
Fig. 3
Single sagittal slice from each T1-W scan of the three children with the largest measured in-scan motion. Columns 1 and 2 were acquired with PROMO off and columns 3 and 4 were acquired with PROMO on
See this image and copyright information in PMC

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