Abstract #2101

Fetal cardiac MRI using rapid gradient-spoiled spiral imaging at 1.5 and 3T

Eric Schrauben¹, Christopher W Roy², Adrienne E Campbell-Washburn³, Davide Marini⁴, Michael Seed^4,5, and Christopher K Macgowan^1,6

¹Translational Medicine, The Hospital for Sick Children, Toronto, ON, Canada, ²Radiology, Lausanne University Hospital (CHUV), Lausanne, Switzerland, ³NHLBI, National Institutes of Health, Bethesda, MD, United States, ⁴Heart Centre, The Hospital for Sick Children, Toronto, ON, Canada, ⁵Paediatrics, University of Toronto, Toronto, ON, Canada, ⁶Medical Biophysics, University of Toronto, Toronto, ON, Canada

Recent advances in image acquisition and reconstruction techniques have allowed for dynamic imaging of the fetal heart using balanced SSFP (bSSFP). Here we demonstrate the use of a center-out spiral trajectory that is gradient spoiled to maintain temporal resolution and decrease banding from bSSFP. This technique is applied in adult volunteers for quantification of contrast and image sharpness, and is further demonstrated in two fetal subjects to display real-time and CINE recons of the fetal heart.

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