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Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 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.
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- 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.
- Can virtual monochromatic images from dual-energy CT replace low-kVp images for abdominal contrast-enhanced CT in small- and medium-sized patients?[Eur Radiol. 2019]Can virtual monochromatic images from dual-energy CT replace low-kVp images for abdominal contrast-enhanced CT in small- and medium-sized patients?Lv P, Zhou Z, Liu J, Chai Y, Zhao H, Guo H, Marin D, Gao J. Eur Radiol. 2019 Jun; 29(6):2878-2889. Epub 2018 Nov 30.
- Review X-ray-based attenuation correction for positron emission tomography/computed tomography scanners.[Semin Nucl Med. 2003]Review X-ray-based attenuation correction for positron emission tomography/computed tomography scanners.Kinahan PE, Hasegawa BH, Beyer T. Semin Nucl Med. 2003 Jul; 33(3):166-79.
- Tomography, X-Ray Computed - Drugs and Lactation Database (LactMed)Tomography, X-Ray Computed - Drugs and Lactation Database (LactMed)
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