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Abstract #3404

Fetal Blood Flow Measurements at Low Field (0.55T) using Metric Optimized Gating

Michela Cleri1,2, Tomas Woodgate1,3, Charlie Zhang1,4, Sarah McElroy5, Sharon Giles1,2, Lisa Story4,6, Kuberan Pushparajah1,3, David Lloyd1,3, Jana Hutter1,4,7, and Kelly Payette1,4
1School of Biomedical Engineering and Imaging Sciences, St. Thomas’ Hospital, King's College London, London, United Kingdom, 2London Collaborative Ultra high field System (LoCUS),, King's College London, London, United Kingdom, 3Department of Congenital Heart Disease, Evelina Children’s Hospital, London, United Kingdom, 4Centre for the Developing Brain, School of Biomedical Engineering & Imaging Sciences, King's College London, London, United Kingdom, 5MR Research Collaborations, Siemens Healthcare Limited, Camberley, United Kingdom, 6Department of Women & Children's Health, King's College London, London, United Kingdom, 7Smart Imaging Lab, Radiological Institute, University Hospital Erlangen, Erlangen, Germany

Synopsis

Keywords: Fetal, Fetus

Motivation: To allow diagnosis of CHD at low field strengths in order to increase the accessibility of MRI.

Goal(s): To demonstrate that acquiring 2D phase contrast sequences in utero at 0.55T is possible.

Approach: Acquire 2D Phase contrast sequences, optimize sequences parameters, and perform metric optimized gating and flow measurements

Results: Umbilical vein, descending aorta, and superior vena cava flow in utero measurements were calculated.

Impact: Fetal flow measurements provide additional information on the complex hemodynamics in complex CHD cases – potentially enhancing antenatal counselling and postnatal surgery planning. Optimizing these for emerging low field MRI scanners widens their availability.

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Abstract

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