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Abstract #5017

Metal Artifact Reduction MRI around Cobalt-Chromium Arthroplasty Implants: The Negative Effect of Long Echo Trains on Implant-related Artifact

Neil Mithilesh Kumar1, Cesar Netto, Lew Schon, and Jan Fritz2

1Radiology, Johns Hopkins Hospital, Baltimore, MD, United States, 2Radiology, Johns Hopkins Hospital

We demonstrate the negative effects of increasing echo train lengths on total implant-related artifact in a setting of controlled bandwidth, echo spacing and effective echo time. For the practical purpose of metal artifact reduction sequence MR imaging with use of turbo spin echo pulse sequences, high receiver bandwidth can be recommended as the first line means, whereas long echo train length may not be recommended and used cautiously due to the potential of substantial degradation of image quality.

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