Meeting Banner
Abstract #4413

HASTE imaging with EPI volumetric navigators for real-time fetal head motion detection

Borjan Gagoski1,2, Patrick McDaniel3, André J. W. van der Kouwe2,4, Himanshu Bhat5, Lawrence L. Wald2,4,6, Elfar Adalsteinsson3,6, P. Ellen Grant1,2, and M. Dylan Tisdall2,4

1Fetal Neonatal Neuroimaging and Developmental Science Center, Boston Children's Hospital, Boston, MA, United States, 2Radiology, Harvard Medical School, Boston, MA, United States, 3Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, United States, 4Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, MA, United States, 5Siemens Medical Solutions USA Inc, Charlestown, MA, United States, 6Harvard-MIT Health Sciences and Technology, Institute of Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, United States

Although heavily used in clinical fetal imaging due to its encoding efficiency, the image quality of T2-weighted singe-shot fast-spin-echo (ss-FSE, or HASTE) acquisitions is often compromised by fetal head motion. We have implemented and tested an enhanced version of the HASTE acquisition scheme that includes EPI-based volumetric navigators (EPI-vNavs) played each TR, enabling detection and estimation of fetal head motion along six degrees of freedom in real time, while maintaining equivalent T2 contrast in the fetal head compared to the original HASTE acquisition.

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

Join Here