Table 3 Procedural details in the two studied groups
|  | CT-guided group n = 40 | Standard group n = 38 | p value |
|---|---|---|---|
Duration of procedure (minutes) | 26.2 ± 10.7 | 21.3 ± 9.6 | 0.037 |
Number of levels treated/patient | |||
 2 levels | 15 (37.5%) | 14 (36.8%) | 0.862 |
 3 levels | 12 (30.0%) | 11 (28.9%) | |
 4 levels | 13 (32.5%) | 13 (34.3%) | |
VAS score before the procedure | 72.4 ± 5.2 | 73.4 ± 4.9 | 0.385 |
Oxycodone consumption/day (mg/day) | 78 ± 12 | 80 ± 10 | 0.428 |
Pregabalin (mg/day) | 311 ± 35 | 304 ± 23 | 0.303 |
Exposure time per level (sec) | 21.7 ± 8.1 | 19.05 ± 6.3 | 0.112 |
Estimated dose per level (mGy) | 0.28 ± 0.083 | 0.57 ± 0.23 | < 0.001 |