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Abstract #4337

LGE Imaging in Patients with Cardiac Implantable Electronic Devices at 3T: Comparison of Dixon Fat-Water Separation and Fat Suppression

Tess E Wallace1,2, Patrick Pierce2, Alexander Schulz2, Fahime Ghanbari2, Jennifer Rodriguez2, Kelvin Chow3, Xiaoming Bi4, and Reza Nezafat2
1Siemens Medical Solutions USA, Inc., Boston, MA, United States, 2Department of Medicine (Cardiovascular Division), Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, United States, 3Siemens Healthcare Ltd., Calgary, AB, Canada, 4Siemens Medical Solutions USA, Inc., Los Angeles, CA, United States

Synopsis

Keywords: Myocardium, Cardiovascular, Acquisition Methods, Artifacts, Cardiovascular, Fat & Fat/Water Separation

Motivation: Assessment of myocardial fibrosis with late gadolinium enhancement (LGE) is crucial for patients with cardiac implantable electronic devices (CIED), but imaging quality at 3T is often limited by device-induced artifacts and poor fat suppression.

Goal(s): To develop and evaluate a Dixon-based LGE sequence for scar imaging in CIED patients at 3T.

Approach: We compared dual-echo Dixon with fat-suppressed LGE in a phantom and twelve patients with CIEDs at 3T. Images were rated on artifact presence and quality of fat suppression.

Results: Dixon fat-water separation improved fat suppression in LGE imaging at 3T in patients with CIED.

Impact: This study demonstrates that high-quality LGE images can be obtained in patients with CIED at 3T using a high-bandwidth dual-echo Dixon LGE sequence, which provides better fat suppression than conventional spectral fat saturation.

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Keywords