Skip to main content
Fig. 2 | BMC Cancer

Fig. 2

From: Reduction of metal artifacts from knee tumor prostheses on CT images: value of the single energy metal artifact reduction (SEMAR) algorithm

Fig. 2

The regions of interest (ROIs) around a proximal femur tumor prosthesis at the osteotomy level (a, b, c, d) and articular level (e, f, g, h). 9 ROIs were selected around the prosthesis: (1) ~ (4) the muscles surrounding the prosthesis stem (a, c), (5) the periprosthetic bone at the osteotomy level (b, d), (6) ~ (8) the muscles or tendons surrounding the articular part of the prosthesis (e, g) and (9) the patella at the articular level (f, h). The window width and level were 400/40 HU (a, c, e, g) and 2200/400 HU (b, d, f, h), respectively. On non-SEMAR images (a, b, e, f), the prosthesis produces extensive metal artifacts, especially at the articular level. The SEMAR reconstruction (c, d, g, h) considerably reduces the dark and sharp streak artifacts

Back to article page

BMC Cancer

ISSN: 1471-2407

Contact us