. Author manuscript; available in PMC: 2016 Nov 1.

Published in final edited form as: Int J Cardiol. 2015 Jun 27;198:222–228. doi: 10.1016/j.ijcard.2015.06.093

Table 2.

Outcomes among study patients, classified according to whether technical success was achieved or not.

Outcomes and equipment utilization	Overall (n=1036)	Technical Success (n=940)	Technical Failure (n=96)	p
Radial access (%)	22	21	18	0.317
Dual injection (%)	71	69	89	0.001
Procedural success (%)	90	99	0	<0.001
Procedure time (min)^*	119 (82–175)	115 (80–167)	179 (127–238)	<0.001
Fluoroscopy time (min)^*	44 (27–72)	41 (26–68)	70 (49–96)	<0.001
Patient AK dose (Gray)^*	3.4 (2.0–5.4)	3.2 (2.0–5.3)	5.3 (2.7–7.7)	<0.001
Patient DAP dose (Gray^* cm²)^*	262 (141–397)	258 (141–396)	299 (140–400)	0.598
Contrast volume (ml)^*	260 (200–360)	260 (195–350)	305 (208–426)	0.005

median, interquartile range

AK: air kerma; DAP: dose area product.