As radiologists become increasingly comfortable with interpreting abdominal and pelvic MRI, and as it becomes more widely available as an emergent procedure, its utility will continue to increase in the future
Pregnancy and appendicitis: a systematic review and meta-analysis on the clinical use of MRI in diagnosis of appendicitis in pregnant women
When considering the effects of ionizing radiation during pregnancy:
X-ray procedures may be indicated during pregnancy or may occur inadvertently before the pregnancy is diagnosed. The risk to a fetus from ionizing radiation is dependent on the gestational age at the time of the exposure and the dose of radiation. Growth restriction, microcephaly and intellectual disability are the most common adverse effects from high dose radiation exposure. They have not been reported with radiation exposure less than 50 mGy. Actual fetal doses are dependent on gestational age, maternal body habitus and acquisition parameters.
ACOG Committee Opinion 723: Guidelines for Diagnostic Imaging During Pregnancy and Lactation
JAMA: Association Between MRI Exposure During Pregnancy and Fetal and Childhood Outcomes
HPS: Pregnancy and Radiation Exposure – Patient FAQs
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