Pregnancy and Medical Imaging with or without Contrast. Informed consent and understanding. The pregnant patient has a right to know the magnitude and type of potential radiation effects on a fetus that might result from in-utero exposure. Evaluation of potentially pregnant patients.
There are radiation-relatedrisksthroughout pregnancy that arerelated to the stage of pregnancy and absorbed dose.
Radiation risks are most significant during organogenesis in the early fetal period, somewhat less in the 2nd trimester, and least in the 3rd trimester.
CT= computed tomographic; GI=gastrointestinal; HIDA=hepatobiliary iminodiacetic acid; N/A= not applicable
*--Where the reference provides a range of estimated doses, the highest value of the range listed here.
+--Authors’ calculation from data provided in reference: values rounded to lowest whole number.