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Radiopaedia org logo small.jpg
Type of site
Available inEnglish
EditorAssociate Professor Frank Gaillard
LaunchedDecember 2005; 15 years ago (2005-12)
Current status13,400 articles with 35,000 cases (as of January, 2020)

Radiopaedia is a wiki-based international collaborative radiology educational web resource containing reference articles, radiology images, and patient cases.[1] It is a business owned by Investling, gaining revenue from ads, courses and paid supporters.[2][3] It also contains a radiology encyclopedia. It is currently the largest freely available radiology related resource in the world with more than 35,000 patient cases and over 13,000 collaborative articles on radiology-related topics. The open edit nature of articles allows radiologists, radiology residents/registrars, radiographers, sonographers and other healthcare professionals interested in medical imaging to modify and refine most content through time.


The site was initially programmed using MediaWiki, the same program platform as Wikipedia, but now runs on a bespoke code written by TrikeApps.[] In 2010, almost all of the article and image collection from radswiki (a similar wiki-based radiology educational site) was donated to Radiopaedia.[4]


Radiopaedia's mission is to create the best radiology reference the world has ever seen and to make it available for free, for ever, for all.[5] Its intention is to benefit the radiology community and wider society and it relies on benevolent collaborations from radiologists and others with an interest in medical imaging.

It was founded by the Australian neuroradiologist Associate Professor Frank Gaillard in December 2005.[6] It was initially Australian-led but now has a worldwide collaboration.[] Its article content is currently limited to English.

Similarly to Wikipedia, registered users of the site are allowed to freely add and edit the majority of the content. This allows content to be progressively upgraded over years and for radiologists and society, in general, to continuously refine article content through time. The site also allows registered users to maintain their own personal case library of teaching cases.[7] Rather than individually publishing articles, users are encouraged to integrate content with links to cases and journal articles and collaboratively refine content.[8] In an attempt to reduce vandalism and to peer-review content, an editorial board moderates changes to ensure that the presented material is as accurate and relevant as possible.[9] As with similar open edit sites, unreliability of content has been a concern;[] however, despite its open edit nature, it is ranked relatively high among user reviews.[10][11]

Sub sites

Radiopaedia also maintains several other educational subsites which include

  • Radiology Signs - a tumblr feed with selected signs
  • Radiology Channel - a YouTube channel containing educational videos

Editorial team

The editorial team, develop as well as help users to maintain the high-quality content of the website.[12]

The current editorial board (2020) is composed of individuals from a variety of countries and includes:

Editor in chief

  • Frank Gaillard

Academic director

  • Andrew Dixon

Community director

  • Jeremy Jones

Editorial director

  • Henry Knipe

Managing editors

  • Andrew Murphy
  • Yuranga Weerakkody
  • Daniel J Bell

iPhone, iPad and iOS apps

In 2009, the first Radiopaedia iPhone app was released. These teaching files package cases and articles for users to review and have sample questions and answers.[13]

  • Brain
  • Gastrointestinal and hepatobiliary
  • Musculoskeletal
  • Paediatrics
  • Chest
  • Head and Neck

These have been released in two forms:[14]

  • LITE : 10 full cases
  • FULL : 50-80 cases; the initial 50 have been supplemented in some cases.

Teaching files for the iPad were released in mid-2010. The first of its kind. These have currently been released for

  • Brain
  • Head and Neck
  • Musculoskeletal

In 2012, Radiopaedia released a new version of its iOS application which is a universal app with in-app purchases for case packs.[]


Most of the content is under the Creative Commons non-commercial license.[1]


  1. ^ a b ", the wiki-based collaborative modifiable Radiology resource".
  2. ^ "Our Businesses". Retrieved .
  3. ^ "Become a Supporter".
  4. ^<2020-05-22
  5. ^
  6. ^ "Radiopaedia 2.0 update « ScienceRoll".
  7. ^
  8. ^
  9. ^
  10. ^ Talanow, Roland. "Learning Radiology :: Radiology learning resources in the Internet". Archived from the original on 2010-12-08.
  11. ^ "10 Best Radiology Websites".
  12. ^
  13. ^ "Radiopaedia MSK iPhone app « A radiology geek's blog". Archived from the original on 2010-03-08.
  14. ^ "Radiopaedia iPhone apps « MacWorld".

External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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