Breastfeeding and radiologic procedures

Area of Science:

• Radiology
• Lactation Medicine

Background:

• Patients undergoing magnetic resonance imaging (MRI) or computed tomography (CT) scans are sometimes advised to avoid breastfeeding for 24-48 hours.
• This recommendation is often based on concerns about contrast media transfer to the infant via breast milk.

Purpose of the Study:

• To evaluate the scientific evidence behind the recommendation to withhold breastfeeding after MRI scans.
• To determine the safety of breastfeeding following the administration of contrast media used in diagnostic imaging.

Main Methods:

• Review of existing scientific literature and evidence regarding the excretion of MRI and CT contrast media into human breast milk.
• Analysis of the potential impact of ingested contrast media on nursing infants.

Main Results:

• Contrast media used in MRI and CT scans are excreted into breast milk in negligible quantities.
• The amount of contrast media transferred to the infant through breastfeeding is significantly below any level that would cause concern.

Conclusions:

• There is no scientific evidence to support the recommendation to stop breastfeeding for 24-48 hours after MRI or CT scans.
• Breastfeeding can be safely continued without interruption after maternal exposure to standard contrast media used in diagnostic imaging.