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FIGURE 8. (A) Fusion of 18F-fluoride PET and CT images of 17-y-old male athlete with back pain that worsened on hyperextension. 18F-Fluoride PET had identified focally increased tracer uptake in region of right pars interarticularis of L5 vertebra. Fusion image demonstrates correlation of site of 18F– uptake with nondisplaced fracture of pars that was identified by CT. (B) From top to bottom, sagittal 18F-fluoride PET, CT, and fusion images of 15-y-old female athlete with back pain after landing from high jump. Increased 18F-fluoride uptake and deformity on PET correlates to wedge compression fracture of L3 vertebra (arrows) identified on CT.
