E2462. Safety Considerations for Medical Imaging in Pregnancy and Postpartum
  1. Aisha True-Malhotra; Henry Ford Health System
  2. Keisha McCall; Henry Ford Health System
  3. Ishani Dalal; Henry Ford Health System
When imaging pregnant or postpartum patients, there are additional considerations in order to ensure the safety of the mother and her fetus/baby. There are many different guidelines that recommend the best imaging modalities, whether contrast should be used and what type of contrast is safe. In nuclear medicine studies, there are additional considerations including the pharmacokinetics of the individual tracer used. The purpose of this educational exhibit is to summarize the different guidelines to give residents a reference on how to think about safely imaging pregnant and postpartum patients.

Educational Goals / Teaching Points
- To explain possible effects of contrast used in CT and MRI - To review the deterministic and stochastic effects of fetal radiation exposure - To review the use of CT imaging during pregnancy and ways to minimize fetal radiation exposure - To review the use of Nuclear Medicine studies during pregnancy - To explain precautions after administration of radiopharmaceuticals in the postpartum period

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
- CT and MRI Contrast in pregnant and postpartum women - Medical Imaging Radiation in Pregnancy - CT Imaging during Pregnancy - Nuclear Medicine Studies during Pregnancy - Nuclear Medicine Studies Postpartum

There are several factors to weigh when determining the most appropriate imaging modalities for evaluating pregnant and postpartum women. While ultrasound and MRI are considered the safest imaging modalities in pregnancy, there are times when other types of imaging are needed in order to answer the clinical question posed by clinicians. Understanding the ways to reduce the risk to the women and their fetus/baby is essential to the practice of radiology.