Abstract #4815

Preliminary Experience Using Motion-Robust Dynamic MRI to Visualize Fetal Congenital Heart Disease: Comparison to Static MRI

Christopher W. Roy^1,2, Mike Seed^3,4, and Christopher K. Macgowan^1,2

¹Medical Biophysics, University of Toronto, Toronto, ON, Canada, ²Physiology and Experimental Medicine, Hospital for Sick Children, Toronto, ON, Canada, ³Pediatric Cardiology, Hospital for Sick Children, ON, Canada, ⁴Pediatric and Diagnostic Imaging, University of Toronto, Toronto, ON, Canada

Recent advances in cardiac MRI have enabled powerful new methods for assessing the fetal heart in utero. Using a novel reconstruction framework, combining methods for motion correction, retrospective gating, and accelerated imaging, motion-robust CINE images are reconstructed and compared to conventional static MRI of the fetal heart. Preliminary evaluation of fetal congenital heart disease with this technique is demonstrated in multi-slice axial acquisitions of four subjects.

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