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Abstract #0131

Magnetic Resonance Imaging of Periprosthetic Tissues in the Presence of Joint Arthroplasty

Matthew F. Koff1, Kevin M. Koch2, Hollis G. Potter1

1Department of Radiology and Imaging, Hospital for Special Surgery, New York, United States; 2General Electric Healthcare, Waukesha, WI, United States

Significant in-plane and through-plane susceptibility artifacts occur when performing MRI around orthopedic hardware. This study evaluated standard of care 2D FSE imaging with the multi-acquisition variable-resonance image combination (MAVRIC) technique. Volunteers with joint replacements (hip, shoulder, or knee) were scanned using a 2D FSE sequence optimized for imaging around arthroplasty and a MAVRIC sequence. MAVRIC scans were effective in reducing the metal susceptibility artifact for all joints and also better highlighted the extent of osteolysis. Higher resolution FSE images were effective for detection of formation of fibrous membrane around arthroplasties. This study further supports the use of MAVRIC for clinical implementation.