Abstract #1568
Wideband Pulse Sequences for Suppressing Image Artifacts Induced by an ICD: A study in a Pediatric Anthropomorphic Phantom
Oluyemi Aboyewa1,2, KyungPyo Hong2, Fuchang Jiang1, Bhumi Bhusal2, Giorgio Bonmassar3, Andrada Popescu4, Gregory Webster5, Laleh Golestanirad1,2, and Daniel Kim1,2
1Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL, United States, 2Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States, 3AA. Martinos Center Massachusetts General Hospital Harvard Medical School, Charlestown, MA, United States, 4Department of Medical Imaging, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, United States, 5Division of Cardiology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital, Chicago, IL, United States
Synopsis
This study investigated whether wideband late-gadolinium enhancement (LGE) and T1 mapping pulse sequences can suppress image artifacts induced by an ICD positioned 12cm inferior to the heart in a pediatric anthropomorphic phantom. The ICD induced a peak-to-peak center frequency shift of 970Hz across the heart. The normalized mean signal intensity within the heart was 1.91±1.20 and 0.98±0.39, for standard and wideband LGE with ICD, respectively. The mean myocardial T1 was 1486.1±607.7 and 1728.3±332.3msec for standard and wideband T1 mapping, respectively. Our results demonstrate that wideband pulse sequences can suppress image artifacts induced by an ICD in a pediatric anthropomorphic phantom.
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