A Health Care Personnel Guide For Assessing Radiation Risk And Selecting Imaging Procedures In Pregnant Women Easy-print edition of this Guide

This reference material is for use by medical staff affiliated with Brigham and Women's Hospital only. It is designed to inform your decision-making as you determine individual risks associated with medical imaging and communicate with your patients. It should not be interpreted as medical advice, nor is it necessarily germane to institutions using other imaging protocols. Patients with questions regarding these issues should speak directly with their caregivers. An additional resource is the Ask the Experts-Pregnancy and Radiation module of the Health Physics Society: http://www.hps.org
Summary and Recommendations

The question of whether to proceed with a procedure that imparts ionizing radiation to the fetus, rather than an alternative strategy, is a decision that should be based on each individual patient's clinical condition.

Most medical imaging studies produce fetal absorbed doses below those considered to pose a major risk.

We recommend, however, that alternative diagnostic imaging tests which do not involve ionizing radiation, e.g., sonography or MRI, be first considered in the care of pregnant patients.

It is possible that multiple diagnostic imaging exams, or radiotherapy procedures, performed during a particular fetal development period can produce higher risks.