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. Author manuscript; available in PMC: 2016 Oct 20.
Published in final edited form as: Ann Rheum Dis. 2013 Jan 23;73(3):544–550. doi: 10.1136/annrheumdis-2012-202661

Figure 4.

Figure 4

Syndesmophyte evolution over 1 year in two patients. The columns show the four intervertebral disc spaces. Lateral radiographs at baseline (BL) and year 1 (Y1) are shown in the first two rows. The following rows show the three-dimensional surface views of the syndesmophytes (bright green and red) segmented from the CT scans at baseline and year 1 The computed syndesmophyte volume (mm3) and maximal height (mm) are indicated. To aid orientation, the yellow triangles indicate the anterior aspect of the intervertebral disc space.