Attribution Statement: LactMed is a registered trademark of the U.S. Department of Health and Human Services.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006-.
Drug Levels and Effects
Summary of Use during Lactation
X-rays used to obtain computerized tomography images (CT or CAT scans) are a form of electromagnetic radiation similar to light, but with a shorter wavelength. X-rays are present only during the short time that the image is being taken and leave no radiation or radioactivity in the body or in milk. X-rays have no known effect on the milk in the breast at the time of imaging. No special precautions are required.
For information on contrast media used with CT scans, see the LactMed entry for the specific contrast agent.
Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Substance Identification
Substance Name
Tomography, X-Ray Computed
Drug Class
- Breast Feeding
- Diagnostic Imaging
- Radiation
Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.
- User and Medical Advice Disclaimer
- Drugs and Lactation Database (LactMed) - Record Format
- LactMed - Database Creation and Peer Review Process
- Fact Sheet. Drugs and Lactation Database (LactMed)
- Drugs and Lactation Database (LactMed) - Glossary
- LactMed Selected References
- Drugs and Lactation Database (LactMed) - About Dietary Supplements
- Breastfeeding Links
- Review X-Rays.[Drugs and Lactation Database (...]Review X-Rays.. Drugs and Lactation Database (LactMed®). 2006
- Review Magnetic Resonance Imaging.[Drugs and Lactation Database (...]Review Magnetic Resonance Imaging.. Drugs and Lactation Database (LactMed®). 2006
- Propagation-based x-ray phase-contrast tomography of mastectomy samples using synchrotron radiation.[Med Phys. 2019]Propagation-based x-ray phase-contrast tomography of mastectomy samples using synchrotron radiation.Gureyev TE, Nesterets YI, Baran PM, Taba ST, Mayo SC, Thompson D, Arhatari B, Mihocic A, Abbey B, Lockie D, et al. Med Phys. 2019 Dec; 46(12):5478-5487. Epub 2019 Oct 20.
- Deep learning for x-ray scatter correction in dedicated breast CT.[Med Phys. 2023]Deep learning for x-ray scatter correction in dedicated breast CT.Pautasso JJ, Caballo M, Mikerov M, Boone JM, Michielsen K, Sechopoulos I. Med Phys. 2023 Apr; 50(4):2022-2036. Epub 2023 Jan 7.
- Reproducibility assessment of Delaire cephalometric analysis using reconstructions from computed tomography.[J Stomatol Oral Maxillofac Sur...]Reproducibility assessment of Delaire cephalometric analysis using reconstructions from computed tomography.Debelmas A, Ketoff S, Lanciaux S, Corre P, Friess M, Khonsari RH. J Stomatol Oral Maxillofac Surg. 2020 Feb; 121(1):35-39. Epub 2019 May 2.
- Tomography, X-Ray Computed - Drugs and Lactation Database (LactMed®)Tomography, X-Ray Computed - Drugs and Lactation Database (LactMed®)
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