Ask a doctor - Is MRI safe for pregnant women?

Q. Is MRI safe for pregnant women?

Doctor Answer is medically reviewed by SecondMedic medical review team.

Answered by Secondmedic Expert

MRI is generally considered safe for pregnant women, especially when there is a clear medical indication for the procedure. Unlike X-rays and CT scans, which use ionizing radiation, MRI uses a strong magnetic field and radiofrequency pulses to generate images there is no evidence to suggest that exposure to the magnetic fields and radiofrequency energy used in MRI poses a known risk to the developing fetus.

However, it's essential to consider the following factors:

1. Timing of Pregnancy: The first trimester is a critical period of fetal development, and some healthcare providers may prefer to avoid unnecessary exposure to medical procedures during this time. If possible, non-urgent MRI exams may be postponed until the second or third trimester.

2. Contrast Agents: While gadolinium-based contrast agents are generally considered safe for use in adults, their safety during pregnancy is still a topic of ongoing research. Some healthcare providers may avoid using contrast agents during pregnancy unless the potential benefits clearly outweigh any potential risks.

3. Medical Necessity: The decision to perform an MRI during pregnancy is typically based on medical necessity. If the information obtained from the MRI is crucial for diagnosis and treatment, and if the benefits outweigh potential risks, the procedure may be recommended.

It's crucial for pregnant women to inform their healthcare providers about their pregnancy before undergoing any imaging procedures. The healthcare team can assess the specific situation, considering the type of MRI, the urgency of the procedure, and the potential benefits and risks.

As medical knowledge and guidelines may evolve, it's advisable to consult with a healthcare professional who can provide the most up-to-date and personalized information based on the individual's health condition and the specifics of the pregnancy. Always follow the guidance of healthcare providers to ensure the safety of both the mother and the developing fetus.