Fig. 3From: Fiducial markers visibility and artefacts in prostate cancer radiotherapy multi-modality imagingCross-sectional/planar images of boxes with different FM acquired using different imaging modalities. a–b Volumetric X-ray scans, c MRI scans, and e–i Planar X-ray images. d Different fiducial markers used in this study, diameter x lengthBack to article page