Abstract #3355

Head motion estimation and correction using slab-selective FIDnavs

Nurten Ceren Askin Incebacak¹, Tess E. Wallace², Tobias Kober^3,4,5, Francois Lazeyras¹, Simon K. Warfield², and Onur Afacan²

¹Department of Radiology and CIBM, University of Geneva, Geneva, Switzerland, ²Department of Radiology, Boston Children's Hospital and Harvard Medical School, Boston, MA, United States, ³Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland, ⁴Department of Radiology, UNIL and CHUV, Laussanne, Switzerland, ⁵LTS5, EPFL, Lausanne, Switzerland

In this work, we propose to measure and correct rigid body head motion using slab-selective FID navigators. It is possible to estimate motion without relying on any patient specific choreographic training by using simulated motion data and a forward model of FIDnav signal generation by including slab profile estimation. This calibration procedure provides a more practical solution, particularly for pediatric applications where subjects are unable to cooperate with specific instructions.

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