Radiation Exposure and Pregnancy: When Should We Be Concerned?

摘要: The potential biological effects of in utero radiation exposure a developing fetus include prenatal death, intrauterine growth restriction, small head size, mental retardation, organ malformation, and childhood cancer. risk each effect depends on the gestational age at time exposure, fetal cellular repair mechanisms, absorbed dose level. A comparison between levels associated with these risks estimated doses from typical radiologic examinations lends support to conclusion that are minimal and, therefore, nuclear medicine may provide significant diagnostic information should not be withheld pregnant women. latter position is advocated by International Commission Radiological Protection, National Council Radiation American College Radiology, Obstetrics Gynecology. However, although small, it important ensure kept as low reasonably achievable.