Abstract #1991

Accelerated 4D flow MRI in pediatric patients with congenital heart disease

Fatemeh Rastegar Jooybari^1,2, Christopher Huynh², Sharon Portnoy², Jonathan Voutsas³, Diana Balmer-Minnes², Ankavipar Saprungruang⁴, Shi-Joon Yoo⁵, Christopher Z Lam⁴, and Christopher K Macgowan^1,2

¹Medical Biophysics, University of Toronto, Toronto, ON, Canada, ²Translational Medicine, Hospital for Sick Children, Toronto, ON, Canada, ³Queen's University, Kingston, ON, Canada, ⁴Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, ON, Canada, ⁵Departments of Medical Imaging and Paediatrics, University of Toronto, Toronto, ON, Canada

Synopsis

Keywords: Cardiovascular, Quantitative Imaging, Flow, Heart, Cardiovascular, Congenital heart diseaseThe application of conventional 4D flow to evaluate the hemodynamics of the heart and vessels is limited by long scan time. Recent advances aim to reduce scan time while providing sufficient accuracy. Here we investigate a 4D flow pipeline based on an undersampled 3D golden angle radial trajectory that offers reconstruction flexibility. We evaluated this technique in a cross-section of 11 pediatric patients with congenital heart disease and compared flows against conventional 2D phase contrast in target vessels.

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