Table 1.
In utero fetal radiation effects and average radiation exposure during interventional procedures.
| Summary of suspected in utero-induced deterministic radiation effects | |||
|---|---|---|---|
| Gestational age (wks) | <50 mGy | 50-100 mGy | >100 mGy |
| 0-2 | None | None | None |
| 3-4 | None | Probably none | Possible spontaneous abortion |
| 5-10 | None | Scientifically uncertain and probably too subtle to be clinically detectable | Possible malformation risk increases with increasing dose |
| 11-17 | None | Scientifically uncertain and probably too subtle to be clinically detectable | Risk of diminished IQ increases with increasing dose |
| 18-27 | None | None | IQ deficits not detectable at diagnostic doses |
| >27 | None | None | None applicable to diagnostic medicine |
| Average radiation exposure for interventional procedures: 3-20 mGya | |||
| Diagnostic angiography, percutaneous coronary intervention, balloon aortic valvuloplasty, mitral valvuloplasty, hemodynamic support insertion, catheter-directed thrombolysis/thrombectomy | |||
a
Of note, these are average rates of exposure and do not account for complex interventions when indicated.