Table 1. Demographics of study population.
| Bone SPECT (n = 10) | Bone SPECT-CT (n = 10) | |
|---|---|---|
| Characteristic | ||
| Mean age, y (stdev) (range) | 64.5 (6.9) (51–74) | 63.3 (6.4) (52–69) |
| Female (%) | 5 (50%) | 6 (60%) |
| Mean BMI (stdev) (range) | 25.7 (3.1) (21.7–29.4) | 26.9 (6.3) (19.6–39.0) |
| Comorbidities | ||
| Tobacco use (%) | 1 (10) | 2 (20) |
| Prior lumbar spine surgery (%) | 2 (20) | 4 (40) |
| Primary diagnosis | ||
| Scoliosis (%) | 4 (40) | 2 (20) |
| Spondylolisthesis (%) | 3 (30) | 3 (30) |
| Degenerative disk disease (%) | 3 (30) | 2 (20) |
| Herniated nucleus pulposus (%) | 0 | 3 (30) |
Abbreviations: BMI, body mass index; SPECT, single-photon emission computed tomography; SPECT-CT, single-photon emission computed tomography images co-registered with computed tomography; stdev, standard deviation.