Table 3.
Radiation exposure
| DAP | Type of catheterisation | |||||
|---|---|---|---|---|---|---|
| Balloon angioplasty |
CA
n = 61 |
CA and 3DRA
n = 11 |
p-value a |
3DRA
n = 4 |
p-value b | p-value c |
| Fluoroscopy (μGym2/kg)d |
8.82 (3.35–15.00) | 9.07 (7.27–25.39) | 0.284 | 8.54 (3.25–26.44) | 0.734 | 0.514 |
| CA (μGym2/kg)d | 7.34 (1.97–18.55) | 5.28 (1.36–9.42) | 0.469 | 1.30 (0.55–10.26) | 0.089 | 0.433 |
| 3DRA (μGym2/kg)d | 6.96 (4.64–11.79)e | 8.61 (6.71–14.06) | 0.396 | 5.97 (3.01–8.16) | 0.462 | 0.151 |
| Total (μGym2/kg) | 27.88 (16.12–44.11) | 22.52 (16.17–45.09) | 0.736 | 15.81 (6.97–44.70) | 0.275 | 0.361 |
| Fluoroscopy time (min) | 9.80 (6.55–17.00) | 18.50 (13.50–26.20) | 0.003 | 16.75 (10.33–50.18) | 0.107 | 0.794 |
| Stent |
CA
n = 43 |
CA and 3DRA
n = 14 |
p-value a |
3DRA
n = 13 |
p-value b | p-value c |
| Fluoroscopy (μGym2/kg)d |
12.85 (10.04–21.99) | 17.85 (11.15–30.06) | 0.614 | 15.17 (11.84–34.65) | 0.243 | 0.961 |
| CA (μGym2/kg)d | 13.10 (7.95–19.56) | 12.38 (4.47–37.82) | 0.850 | 6.56 (2.84–10.18) | 0.042 | 0.145 |
| 3DRA (μGym2/kg)d | NA | 22.31 (8.11–34.71) | NA | 22.17 (15.23–30.54) | NA | 0.923 |
| Total (μGym2/kg) | 37.34 (25.93–59.77) | 48.90 (36.04–107.25) | 0.072 | 45.24 (37.78–81.34) | 0.090 | 0.923 |
| Fluoroscopy time (min) | 16.10 (11.38–20.28) | 23.90 (15.20–35.80) | 0.011 | 20.40 (13.90–36.80) | 0.047 | 0.771 |
a P-value that indicates the difference between CA and CA and 3DRA.
b P-value that indicates the difference between CA and 3DRA.
c P-value that indicates the difference between CA and 3DRA and 3DRA.
d These subgroups only became available from September 2011.
e The DAP for 3DRA in the CA group was due to post-interventional 3DRA runs.
DAP dose area product, NA not applicable.