Reference for medical professionals. Not a substitute for clinical judgment, institutional protocols, or peer-reviewed literature. Full disclaimer →

Editorial principles

Evidence-based

Recommendations align with ACR Appropriateness Criteria, the ACR Manual on Contrast Media, and society guidelines (SIR, ACOG, AAP).

Reviewed

Content is reviewed by board-certified radiologists from a range of subspecialties. Reviewer credentials are noted on each entry where applicable.

Versioned

Every entry has a last-reviewed date. We retire or rewrite content rather than letting it drift.

Contact

Suggestions, corrections, or topic requests are welcome — we read everything.

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Disclaimer

Educational use only. The information on this site is provided for general educational purposes and does not constitute medical advice. It is not a substitute for clinical judgment, institutional protocols, or consultation with a qualified physician. Always verify recommendations against current primary sources and your local practice before acting on them. The authors and publishers disclaim all liability for any decision made based on the content of this site.

Open to contributors

Interested in writing or reviewing? We're especially looking for contributors in interventional radiology, pediatrics, women's imaging, and nuclear medicine. Get in touch.