Meeting Banner
Abstract #1638

Improved ghost-correction in multi-shot EPI using PLACE and GESTE

W Scott Hoge 1,2 , Huan Tan 3 , Robert A Kraft 4 , and Jonathan R Polimeni 2,5

1 Brigham and Women's Hospital, Boston, Massachusetts, United States, 2 Harvard Medical School, Boston, MA, United States, 3 Department of Surgery (Neurosurgery), University of Chicago, Chicago, Illinois, United States, 4 Virginia-Tech Wake Forest School of Biomedical Engineering, Winston-Salem, NC, United States, 5 A.A. Martinos Center for Biomedical Imaging, MGH, Charlestown, MA, United States

This works seeks to further improve the correction of Nyquist ghosting in multi-shot (or segmented) echo planar imaging. EPI is vulnerable to static local field inhomogeneity and eddy current effects induced by the EPI readout, which results in Nyquist ghosting. Multi-shot EPI is further complicated by phase inconsistencies that often occur between the acquisition of each segment. PLACE and GESTE have been shown previously to provide superior ghost correction in single-shot EPI images. We demonstrate their further effectiveness in segmented EPI with in-vivo brain data acquired at 7T using a 32-channel head coil.

This abstract and the presentation materials are available to members only; a login is required.

Join Here