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 and paid subscription.[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 and trainees to modify and refine most content through time.

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


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


The aim of according to its founder is "to develop an online text and case database where information is up to date and relevant to the needs of both registrar/resident and consultant radiology staff."[4] 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 radiology.

It was founded by the Australian neuroradiologist Associate Professor Frank Gaillard in December 2005.[5] It was initially Australian-led but now has a worldwide collaboration.[citation needed] 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.[citation needed] Rather than individually publishing articles, users are encouraged to integrate content with links to cases and journal articles and collaboratively refine content.[citation needed] In an attempt to reduce vandalism and to peer-review content, a panel of editors are appointed time-to-time to review changes and ensure that the presented material is as accurate and relevant as possible.[citation needed] As with similar open edit sites, unreliability of content has been a concern;[citation needed] however, despite its open edit nature, it is ranked relatively highly among user reviews.[6][7]

Sub sitesEdit

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

Board of editorsEdit

The board of editors review, develop as well as help the users to maintain the high quality content of the website.[citation needed]

The current editorial board (2017) is composed of individuals from a variety of countries and includes:[citation needed]

Editor in chief

  • Frank Gaillard

Deputy Editor in chief

  • Jeremy Jones

Academic director

  • Andrew Dixon

Managing editors

  • Craig Hacking
  • Yuranga Weerakkody
  • Henry Knipe

iPhone, iPad and iOS appsEdit

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.[8]

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

These have been released in two forms:[9]

  • 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.[citation needed]


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 2018-04-05.
  3. ^ "Become a Supporter".
  4. ^ "Radiopaedia: a wiki for radiology « ScienceRoll".
  5. ^ "Radiopaedia 2.0 update « ScienceRoll".
  6. ^ Talanow, Roland. "Learning Radiology :: Radiology learning resources in the Internet". Archived from the original on 2010-12-08.
  7. ^ "10 Best Radiology Websites".
  8. ^ "Radiopaedia MSK iPhone app « A radiology geek's blog". Archived from the original on 2010-03-08.
  9. ^ "Radiopaedia iPhone apps « MacWorld".

External linksEdit