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Abstract #1673

Evaluating Transverse Relaxation Trends in Cobalt-Chromium Particulate Deposits

Kevin Koch1, Matthew F. Koff2, Parina Shah2, Hollis Potter2

1GE Healthcare, Milwaukee, WI, United States; 2Department of Radiology and Imaging, Hospital for Special Surgery, New York, United States

The introduction of metal artifact suppression sequences has elicited further demands from magnetic resonance techniques in assessing tissue near failed joint replacements. Many of these failure cases require confirmation of the presence or absence of implant particulate debris. Here, we speculate that the high-susceptibility nature of some particulate matter could impact transverse relaxation-based contrast in MR images. A phantom study is used to confirm this hypothesis. The capability of exploiting these observed trends using metal-artifact suppression techniques is then explored.