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
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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