Abstract #2734
Ventilator Gated 4D Flow MRI in Pediatric Patients with CHD: Initial Feasibility and Internal Validation
Patrick Magrath 1,2 , Stanislas Rapacchi 2 , Fei Han 1,2 , Peng Hu 2 , J. Paul Finn 2 , and Daniel B. Ennis 1,2
1
Bioengineering, University of California,
Los Angeles, California, United States,
2
Radiology,
University of California, Los Angeles, California,
United States
The purpose of this study was an initial evaluation of a
4D-flow workflow consisting of: 1) a ventilator-gated
4D-flow acquisition that leverages the regularity of
respiratory motion provided in these cases; and 2) 4D
flow segementation using a recently developed
co-registered, high resolution, ventilator gated, CE-MRA
technique made possible through the use of an
intravascular contrast agent (Ferumoxytol). These
initial results demonstrate that a workflow consisting
of ventilator gated 4D flow acquisition coupled with
segmentation using the MUSIC MRA sequence made possible
by an intravascular contrast agent is feasible and
provides a straightforward workflow.
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