Procedural time ( median -LSB- IQR -RSB- @ minutes -LSB- @ to @ minutes -RSB- versus @ minutes -LSB- @ to @ minutes -RSB- , P = @ ) , fluoroscopic time ( @ minutes -LSB- @ to @ minutes -RSB- versus @ minutes -LSB- @ to @ minutes -RSB- , P = @ ) , contrast volume ( @ mL -LSB- @ to @ mL -RSB- versus @ mL -LSB- @ to @ mL -RSB- , P = @ ) , and pain score ( P for trend = @ ) were comparable in the @ groups .