Table 1.
X‐ray exposure factors for different coronary angiographic protocol
| Exposure Factors | 2 s SA | 3 s SA | 5 s SA | DARCA |
|---|---|---|---|---|
| Fluoroscopy time per run (s) | 3 | 3 | 3 | 5 |
| Cine time per run (s) | 2 | 3 | 5 | 6.8 (4.5) a |
| Total fluoroscopy time (s) | 21 | 21 | 21 | 15 |
| Total cine time (s) | 14 | 21 | 35 | 11.3 |
| Field of view (cm) | 25 | 25 | 25 | 25 |
| Source‐image detector distance (cm) | 100 | 100 | 100 | 120 |
| Source‐skin distance (cm) | 60 | 60 | 60 | 60 |
| Fluoroscopy mode | Low | Low | Low | Low |
| Cine mode (fr/s) | 15 | 15 | 15 | 15 |
a
Number in the bracket indicates cine time for the right coronary spin; out of the bracket for the left coronary spin.
SA = standard coronary angiography; DARCA = dual‐axis rotational coronary angiography.