Abstract #1635

A living phantom study to evaluate the echo planar imaging (EPI) distortion correction effects in reducing inter-site variability

Amritha Nayak^1,2, Elizabeth Wilde³, Brian Taylor³, CENC Neuroimaging Core Investigators⁴, Laura Reyes^1,2, and Carlo Pierpaoli¹

¹Quantitative Medical Imaging Section, NIBIB, NIH, Bethesda, MD, United States, ²The Henry M. Jackson Foundation for the Advancement of Military Medicine Inc, Bethesda, MD, United States, ³Baylor College of Medicine, Houston, TX, United States, ⁴Chronic Effects of Neurotrauma Consortium, Richmond, VA, United States

In this study we evaluate the effect of echo planar imaging (EPI) distortion artifact as a contributing factor in inter-site variability. With living phantom data acquired with opposite phase encoding direction protocol (blipup-blipdown), we show the effectiveness of a robust EPI distortion correction method in reducing inter-site variability.

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