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Comparison of WFBP, MARIS, and iMAR-hip in CT and PET in phantom scan. iMAR leads to an improved image quality adjacent to the hip implant in CT and PET images. Between WFBP and MARIS, no relevant visual differences can be observed. WFBP: weighted filtered back projection; MARIS: metal artifact reduction in image space; iMAR: iterative metal artifact reduction.
