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Abstract #1677

Quantified Estimates of Artifact Regions near Metal-on-Poly and and Metal-on-Metal Hip Replacements at 1.5T and 3T

Kevin Koch 1 , Adriana Kanwischer 1 , and Robert Peters 1

1 GE Healthcare, Milwaukee, WI, United States

An artifact quantification study is presented on metal-on-metal and metal-on-poly total hip replacements at 1.5T and 3T. Computational models and known theoretical performance limitations are used to quantify artifact volumes in 2D-FSE and 3D-MSI imaging approaches. Analysis of these results demonstrates the expected performance differences across different pulse sequences, joint replacement constructions, and field strengths. Simulated images are presented using an anatomic hip model to demonstrate practical clinical impact of the predicted artifacts.

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