Procedural time ( median [ IQR ] 16.0 minutes [ 9.0 to 30.0 minutes ] versus 17.0 minutes [ 10.0 to 31.0 minutes ] , P = 0.37 ) , fluoroscopic time ( 4.4 minutes [ 2.1 to 9.6 minutes ] versus 4.8 minutes [ 2.4 to 10.7 minutes ] , P = 0.28 ) , contrast volume ( 72.5 mL [ 48.0 to 146.0 mL ] versus 75.5 mL [ 47.0 to 156.5 mL ] , P = 0.74 ) , and pain score ( P for trend = 0.12 ) were comparable in the 2 groups .