Jessica A McKay1, Steen Moeller2, Sudhir Ramanna2, Edward J Auerbach2, Michael T Nelson2, Kamil Ugurbil2, Essa Yacoub2, and Patrick J Bolan2
1Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States, 2Department of Radiology, University of Minnesota, Minneapolis, MN, United States
It is important to improve ghost correction in
breast DWI using SE-EPI because residual ghosts bias ADC measurements, which
reflect malignancy. The standard ghost correction method using a 3-line
navigator frequently fails in breast DWI. In this work we implemented several alternative
ghost correction strategies. The two best methods outperformed the standard
3-line navigator correction. These techniques applied 1D, linear corrections
based on 1) phase maps from separate reference scans and 2) entropy
minimization.
