False-Positive Etiology | Count | Percentage of All Flagged Studies (n = 173) |
---|---|---|
Degeneration | 55 | 31.8 |
Degenerative ossicle | 18 | 10.4 |
Facet degeneration | 14 | 8.1 |
Calcified ligament | 6 | 3.5 |
Cortical irregularity | 7 | 4.0 |
Osteopenia | 4 | 2.3 |
Cystic degeneration | 4 | 2.3 |
Atlantodental joint | 1 | 0.6 |
Osteophyte | 1 | 0.6 |
Noncervical pathology | 15 | 8.7 |
Rib fracture | 8 | 4.6 |
Degeneration, thoracic | 4 | 2.3 |
Skull fracture | 2 | 1.2 |
Carotid calcification | 1 | 0.6 |
Anatomic variant | 10 | 5.8 |
Nonunion vertebrae | 4 | 2.3 |
Transitional anatomy | 2 | 1.2 |
Limbus | 2 | 1.2 |
Bifid spinous process | 1 | 0.6 |
Secondary transverse foramen | 1 | 0.6 |
Nutrient foramen | 9 | 5.2 |
Artifact | 7 | 4.0 |
Unknown | 8 | 4.6 |
Other | 2 | 1.7 |
DISH | 1 | 0.6 |
Occipital suture | 1 | 0.6 |
Total | 106 | 61.3 |
Note:—DISH indicates diffuse idiopathic skeletal hyperostosis.