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Abstract #2256

Comparison of Phase-Contrast Flow Imaging at 0.55T and 1.5T

Sujata M. Shanbhag1, Rajiv M. Ramasawmy1, W. Patricia Bandettini1, Christine M. Mancini1, Delaney R. McGuirt1, Jennifer L. Henry1, Margaret M. Lowery1, Marcus Y. Chen1, and Adrienne Campbell-Washburn1
1NATIONAL INSTITUTES OF HEALTH/NHLBI, BETHESDA, MD, United States, Bethesda, MD, United States

Low-field MRI equipped with high-performance technology and modern imaging methods offers the potential to make technically demanding cardiac imaging more accessible. This study demonstrates that a low-field (0.55T) system can provide accurate phase-contrast flow measurements in both healthy volunteers and patients who were clinically referred for assessment of intracardiac shunt and valvular disease. Comparative studies between contemporary high-performance 0.55T and 1.5T systems generated well-correlated quantitative flow measurements (r>0.87).

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