An average proton density weighted template of the hip with arthroplasty was developed, and multi-spectral images from patients acquired at both 1.5T and 3.0T were registered to it. As a proof-of-concept, maps of residual metal artifact were transformed into the template space and, for different implant compositions, probability maps of residual artifact were generated. Ceramic implants exhibit minimal cross-field artifact differences, while metal-on-metal implants show more profound differences and metal-on-poly implants exhibit more moderate differences. This template and registration software lays the foundation for future quantitative analysis of cross-session and cross-subject imaging of hip arthroplasty.
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