Fig. 5From: Reduction of metal artifacts from knee tumor prostheses on CT images: value of the single energy metal artifact reduction (SEMAR) algorithmThe unenhanced CT images of a 22-year-old woman with a distal femur tumor prosthesis show periprosthetic structures were almost obscured by metal artifacts on the IR image (a), which are visibly eliminated on SEMAR image, and the periprosthetic effusion (arrow) appearsBack to article page