Table 1.
Summary of DAP, cumulative air kerma, fluoroscopy time, image frames for interventional procedures
| DAP (Gy·cm2) | Cumulative air kerma (mGy) | Fluoroscopy time (min) | Number of image frames | ||
|---|---|---|---|---|---|
| Diagnostic cerebral angiography (n=429) | Mean±SD | 78.0±43 | 541.5±333.2 | 10.4±6.4 | 511.1±208.5 |
| Median | 70.4 | 449.2 | 8.6 | 464.0 | |
| 3rd quartile | 101.6 | 711.3 | 13.3 | 637 | |
| Range | 12.5–357 | 105.3–2,836 | 2.5–50 | 52–1,449 | |
| 25th percentile | 45.8 | 294.3 | 6.0 | 371 | |
| Aneurysm coiling (n=327) | Mean±SD | 151.0±96.8 | 2,622.8±2,110.7 | 45.8±30.7 | 803.7±540.0 |
| Median | 130.6 | 2,104.0 | 40.9 | 680.0 | |
| 3rd quartile | 199.9 | 3,458.7 | 57.3 | 1,000 | |
| Range | 12.3–728.9 | 342.7–21,280.0 | 2.8–318.4 | 44–3,175 | |
| 25th percentile | 84.9 | 1,255.0 | 24.7 | 424 | |
| Stroke thrombolysis (n=326) | Mean±SD | 176.2±118.7 | 1,263.5±918.2 | 35.1±26.4 | 630.2±619.0 |
| Median | 150.4 | 1,036.0 | 28.6 | 434.0 | |
| 3rd quartile | 225.1 | 1,590.0 | 44.7 | 800.0 | |
| Range | 9.9–787.2 | 61.3–6,804 | 3.8–163.9 | 58–4,870 | |
| 25th percentile | 92.5 | 587.1 | 15.2 | 219.8 | |
| AVM embolization (n=78) | Mean±SD | 300.1±184.2 | 3,673.8±2,923.0 | 77.2±50.1 | 1,293.8±1,061.6 |
| Median | 264.3 | 3,073.5 | 63.1 | 1,016.5 | |
| 3rd quartile | 412.3 | 4,447.8 | 99.3 | 1,621.3 | |
| Range | 15.1–835.0 | 84.7–13,245 | 2.2–245.0 | 126.0–5,554 | |
| 25th percentile | 167.6 | 1,772.8 | 41.3 | 588.0 | |
DAP, dose-area product; AVM, arteriovenous malformation; SD, standard deviation.