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Abstract #2250

A pilot investigation into the use of a high-performance 0.55T scanner in CMR late gadolinium enhancement imaging of myocardial infarction

W. Patricia Bandettini1, Sujata M. Shanbhag1, Christine M. Mancini1, Delaney R. McGuirt1, Jennifer L. Henry1, Margaret M. Lowery1, Marcus Y. Chen1, Hui Xue1, Peter M. Kellman1, and Adrienne E. Campbell-Washburn1
1NATIONAL INSTITUTES OF HEALTH/NHLBI, BETHESDA, MD, United States

We demonstrate the diagnostic capabilities of a high-performance, low-field (0.55 Tesla) scanner in the acquisition and interpretation of late gadolinium enhancement (LGE) in patients referred for assessment of myocardial infarction (MI). Patients underwent paired comparison exams with breath-held gradient echo LGE imaging at 1.5T and breath-held bSSFP LGE imaging at 0.55T. The number of enhancing segments identified between each field strength was similar (59 segments at 0.55T vs 63 segments at 1.5T), and assessment of epicardial coronary artery distribution matched exactly between the two field strengths; included were two multi-vessel disease cases.

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