Document Classification

Section Type: RESULTS

Text: Compared with femoral access, diagnostic coronary angiography via radial access was associated with a higher mean contrast volume (142 39 ml vs. 171 72 ml, p < 0. 01), longer procedure time (21. 9 6. 8 min vs. 34. 2 14. 7 min, p < 0. 01), greater patient air kerma (kinetic energy released per unit mass) radiation exposure (1. 08 0. 54 Gy vs. 1. 29 0. 67 Gy, p = 0. 06), and higher operator radiation dose (first operator : 1. 3 1. 0 mrem vs. 2. 6 1. 7 mrem, p < 0. 01 ; second operator 0. 8 1. 1 mrem vs. 1. 8 2. 1 mrem, p = 0. 01).