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Abstract #4506

Image quality and accuracy of a 3D whole-heart self-navigated sequence in comparison with cardiac computed tomography for the assessment of coronary artery anomalies

Giuseppe Muscogiuri 1,2 , Akos Varga-Szemes 1 , U. Joseph Schoepf 1 , Carlo N De Cecco 1,2 , Davide Piccini 3,4 , Wolfgang G Rehwald 5,6 , Anthony M Hlavacek 1 , and Arni C Nutting 1

1 Medical University of South Carolina, Charleston, SC, United States, 2 University of Rome Sapienza, Rome, Italy, 3 Siemens Healthcare IM BM IP, Lausanne, Switzerland, 4 University of Lausanne, Lausanne, Switzerland, 5 Siemens Medical Solutions, Chicago, IL, United States, 6 Duke Cardiovascular Magnetic Resonance Center, Durham, NC, United States

In this project we compared a prototype non-contrast free-breathing self-navigated 3D (SN3D) whole-heart MRA acquisition and coronary CTA for the evaluation of the proximal course of coronary arteries in a pediatric patient population. Evaluation of image quality according to a 4-grade scale (1, non-diagnostic; 2, sufficient; 3, good; 4, excellent) and the visualization of the left main, left anterior descending, circumflex, first diagonal, posterior descending, and right coronary arteries were performed, in both techniques, by two experienced observers. Our preliminary results indicate that the non-contrast free-breathing SN3D MRA acquisition allows for the evaluation of coronary artery anatomy with similar image quality to cCTA without any radiation or administration of contrast agent.

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