Table 2 Comparison of procedure and radiation metrics, stratified by bleed location and angiographic system
Location | N | Duration (mins) | DSA runs | FT (seconds) | PKA (cGy.cm2) | Ka,r (mGy) |
|---|---|---|---|---|---|---|
Extra-luminal | ||||||
OS | 36 | 55 (38–74.5) | 8 (6–10) | 944.5 (661.5–1551.5) | 23,694 (15011–35,681) | 1200 (500–2000) |
NS | 49 | 65 (40–89) | 7 (5–10) | 1212 (738–1673) | 8618 (3984–24,330) | 635 (249–1668) |
% | 64 | 47 | ||||
p | < 0.005 | 0.03 | ||||
Upper GI | ||||||
OS | 9 | 41 (30–56) | 9 (6–10) | 1378 (874–2395) | 13,736 (10078–30,681) | 950 (550–1850) |
NS | 29 | 54 (40–80) | 8 (4–12) | 885 (662–1749) | 5511 (1545–11,686) | 327 (114–847) |
% | 60 | 70 | ||||
p | 0.018 | 0.064 | ||||
Lower GI | ||||||
OS | 16 | 48 (27.5–64.5) | 9 (6–11) | 979.5 (622–1370) | 28,788 (14573–41,471) | 1200 (500–2450) |
NS | 15 | 56 (34–76) | 7 (4–8) | 747 (562–1778) | 2906 (2435–7387) | 344 (186–424) |
% | 90 | 71 | ||||
p- | < 0.005 | 0.002 | ||||
All locations | ||||||
OS | 61 | 51 (35–71) | 8 (6–10) | 1009 (672–1524) | 23,786 (14010–36,992) | 1150 (500–2000) |
NS | 93 | 60 (40–86) | 7 (4–9) | 1083 (664–1744) | 6227 (2435–16,568) | 408 (183–953) |
% | 74 | 66 | ||||
p | < 0.005 | < 0.005 | ||||