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Abstract #3030

Prospective Motion Correction of 3D GRASE PASL Acquisitions with Volume Navigators

Andr J. W. van der Kouwe1, 2, Matthew Dylan Tisdall1, 2, Himanshu Bhat3, Borjan Gagoski, 24, Keith A. Heberlein5

1A. A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States; 2Radiology, Harvard Medical School, Boston, MA, United States; 3Siemens Medical Solutions, Charlestown, MA, United States; 4Center for Fetal-Neonatal Neuroimaging and Developmental Science, Boston Children's Hospital, Boston, MA, United States; 5Siemens Healthcare USA, Charlestown, MA, United States

3D GRASE PASL is a useful technique for efficiently measuring perfusion in clinical populations such as stroke patients. The technique is sensitive to motion because of the 3D segmented acquisition and successively acquired label and control volumes. This abstract describes an implementation of real-time prospective motion correction using embedded 3D EPI-based volume navigators. The method corrects rigid body head motions without increasing acquisition time and the motion corrected perfusion images are generated immediately on the scanner.