TABLE I-1
Estimated Fetal Radiation Dose From Abdominopelvic Radiography *
| PROCEDURE TYPE (# OF CASES) | FETAL DOSE (mGy) | RANGE OF GESTATIONAL AGE | |
|---|---|---|---|
| Range of Dose | Mean | Weeks + Days | |
| Abdominal radiography (n = 19) | 0.45–7.20 | 2.44 | 1w + 0d–17w + 2d |
| Abdominopelvic radiography (n = 1) | 3.60 | 3.60 | 11w + 0d |
| Pelvic radiography (n = 12) | 1.70–9.45 | 4.77 | 3w + 1d–18w + 5d |
* Adapted and reprinted with permission from: Ozbayrak M, Cavdar I, Seven M, et al. Determining and managing fetal radiation dose from diagnostic radiology procedures in Turkey. Korean J Radiol 2015;16(6):1276-1282.
TABLE I-2
Estimated Fetal Radiation Dose per 100 mAS eff From Adominopelvic CT for Several Different MDCT Scanners *
| Scanner Model | Tube Voltage (kVp) | Collimation (mm) | Fetal Dose (mGy) per 100 mAs eff |
|---|---|---|---|
| LightSpeed VCT a | 120 | 20 | 14.35 |
| 140 | 40 | 17.92 | |
| 140 | 20 | 19.31 | |
| LightSpeed 16 Pro a | 120 | 20 | 11.54 |
| 120 | 10 | 13.54 | |
| 140 | 20 | 17.92 | |
| 140 | 10 | 20.91 | |
| LightSpeed 16 a | 120 | 20 | 14.18 |
| 120 | 10 | 16.56 | |
| 140 | 20 | 19.94 | |
| 140 | 10 | 23.29 | |
| Sensation 64 b | 120 | 28.8 | 9.64 |
| 120 | 19.2 | 10.4 | |
| 140 | 28.8 | 15.56 | |
| 140 | 19.2 | 16.79 | |
| Sensation 16 b | 120 | 24 | 9.9 |
| 120 | 18 | 10.08 | |
| 140 | 24 | 14.78 | |
| 140 | 18 | 15.04 | |
| Brilliance 64 c | 120 | 40 | 8.63 |
| 120 | 25 | 10.12 | |
| 140 | 40 | 13.65 | |
| 140 | 25 | 16.02 | |
| Brilliance 16 c | 120 | 24 | 10.26 |
| 120 | 12 | 11.43 | |
| 140 | 24 | 14.8 | |
| 140 | 12 | 16.5 | |
| Aquilion 16 d | 120 | 32 | 17.34 |
| 120 | 16 | 19.08 | |
| 135 | 32 | 21.05 | |
| 135 | 16 | 23.39 |
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