Coronary artery abnormalities are a serious complication following the arterial switch operation (ASO) for d-transposition of the great arteries (TGA). While CTA optimally visualizes the coronaries, prior studies have found potentially high-risk coronary lesions in asymptomatic s/p ASO patients, raising questions about when CTA is warranted. CMR is commonly used for monitoring after the ASO, offering assessment without radiation. However, its utility for coronary evaluation remains unclear. We aimed to (1) compare the indications and outcomes of CMR vs. CTA after ASO, and (2) compare coronary features between modalities. Read More

Meeting name: SPR 2025 Annual Meeting , 2025

Authors: Calderon Kylie, Robinson Joshua, Husain Nazia, Popescu Andrada, Rigsby Cynthia

Keywords: Cardiac MRI, Congenital Heart Disease, Computed Tomographic Angiography

Three dimensional magnetic resonance angiography (3DMRA) and two-dimensional phase contrast are commonly used for assessment of anatomy and flow in congenital heart disease. Time-resolved, three-dimensional phase contrast MRI (4D flow) provides complete volumetric coverage of the chest with flow assessment in any plane. How the addition of ferumoxytol (Fe), a blood pool contrast, changes 4D flow magnitude image quality relative to extracellular gadolinium-based contrast agents (GB) and non-contrast (NC) exams is unknown. We compare image quality measurements in Fe, GB and NC 4D flow with ECG-gated, respiratory-navigated 3DMRA. Read More

Meeting name: SPR 2020 Annual Meeting & Postgraduate Course , 2020

Authors: Griffin Lindsay, Gupta Aditi, Berhane Haben, Husain Nazia, Rigsby Cynthia

Keywords: 4D flow, Ferumoxytol, Congenital Heart Disease