Table 1 Risk of fetal radiation exposure resulting from radiological studies in the pregnant patient with respiratory failure
From: Clinical review: Ventilatory strategies for obstetric, brain-injured and obese patients
Investigation | Fetal radiation exposure (mGy) |
|---|---|
Chest X-ray (with abdomen shielded) | 0.01 |
Ventilation–perfusion scan |  |
   Perfusion | 0.1 to 1.0 |
   Ventilation | 0.1 to 0.4 |
Computed tomography pulmonary angiogram | 0.1 to 1.0 |
Computed tomography pelvis and abdomen | 30 to 50 |
Radiation effect on the fetus | Â |
   Teratogenicity | 50 to 100 |
   Oncogenicity | 20 to 50 |