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Table 3 Procedural details in the two studied groups

From: Modified technique for thermal radiofrequency ablation of Thoracic dorsal root ganglia under combined fluoroscopy and CT guidance: a randomized clinical trial

 CT-guided group
n = 40
Standard group
n = 38
p value
Duration of procedure (minutes)26.2 ± 10.721.3 ± 9.60.037
Number of levels treated/patient
 2 levels15 (37.5%)14 (36.8%)0.862
 3 levels12 (30.0%)11 (28.9%)
 4 levels13 (32.5%)13 (34.3%)
VAS score before the procedure72.4 ± 5.273.4 ± 4.90.385
Oxycodone consumption/day (mg/day)78 ± 1280 ± 100.428
Pregabalin (mg/day)311 ± 35304 ± 230.303
Exposure time per level (sec)21.7 ± 8.119.05 ± 6.30.112
Estimated dose per level (mGy)0.28 ± 0.0830.57 ± 0.23< 0.001
  1. Data are supplied as mean ± SD, numbers (%).
  2. VAS visual analogue scale, mGy = milligray.