Figure 8. Transverse nonenhanced MR image (800/13) of the spine at the L4 level obtained in a 32-year-old woman following fusion shows pedicle screw (titanium) artifact (two-sided arrow). Despite the artifact, the central canal is well delineated.
Figure 8. Transverse nonenhanced MR image (800/13) of the spine at the L4 level obtained in a 32-year-old woman following fusion shows pedicle screw (titanium) artifact (two-sided arrow). Despite the artifact, the central canal is well delineated.