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Abstract #4214

Rapid multiparametric mapping near orthopedic implants at 3T using plug & play parallel transmission

Martijn A Cloos 1 , Mary Bruno 1 , Tiejun Zhao 2 , Leeor Alon 1 , Riccardo Lattanzi 1 , and Danial K Sodickson 1

1 Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States, 2 Siemens Medical Solutions USA Inc., Malvern, PA, United States

Under some circumstances, the complex electrodynamic interactions between the subject and the incident RF field can distort RF excitation to such an extent that the diagnostic value of MRI is compromised. Metal implants, in particular, are a well-known source of MR artifacts, resulting not only from distortion of the main magnetic field, but also from distortions of the excitation RF field. In this work, we explore the potential of a generalized implementation of the recently proposed plug & play parallel transmission framework, to enable rapid multiparamatric mapping (T1, T2, PD) in the presence of orthopedic implants.

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