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  • RadLex

  • What is RadLex?

    As images, imaging reports and medical records move online, radiologists need a unified language to organize and retrieve them. Radiologists currently use a variety of terminologies and standards, but no single lexicon serves all of their needs.

    Enter RadLex, a comprehensive lexicon—a unified language of radiology terms—for standardized indexing and retrieval of radiology information resources. With more than 68,000 terms, RadLex satisfies the needs of software developers, system vendors and radiology users by adopting the best features of existing terminology systems while producing new terms to fill critical gaps. RadLex also provides a comprehensive and technology-friendly replacement for the ACR Index for Radiological Diagnoses. It unifies and supplements other lexicons and standards, such as SNOMED-CT and DICOM.

    RSNA has developed a term browser (radlex.org) to give potential users a convenient way to view RadLex's structure and content. RadLex is available for download via the National Center for Biomedical Computing’s Bioportal.

    History

    In 2005, RSNA formed six RadLex organ system committees. Representatives of more than 30 radiology professional and standards organizations, including the American College of Radiology (ACR), DICOM, and IHE, participated in the process. In November 2006, they publicly released an initial set of more than 7,500 anatomic and pathologic terms.

    Six additional committees, each focusing on a specific imaging modality, were recruited in 2007 to develop the RadLex Playbook which encompasses terms to describe the devices, imaging exams, and procedure steps performed in radiology. Playbook terms have been incorporated in the current release of RadLex. Beginning in 2008, RSNA contracted with Northwestern University on a related effort to create a standardized "chargemaster" of radiology orderables and procedure steps.

    RadLex development is supported both by the National Institute of Biomedical Imaging and Bioengineering (NIBIB) and by the cancer Biomedical Informatics Grid (caBIG) project, a large NIH-sponsored effort to develop unified computing infrastructure for clinical trials.

  • Resources

  • RsnaProgram7

    Bioportal Download  

    Download the latest RadLex ontology and review additional details, metrics, versions and projects that use RadLex.

    RsnaProgram7

    Developers’ Wiki 

    Access information for users, term and program developers, the community portal, current events and recent changes.

    RsnaProgram7

    RadLex Ontology License  

    This License permits public access to the Release Version of RadLex® and to use it without charge.

    RsnaProgram7

    Release Notes  

    Stay up to date on the latest additions and amendments to RadLex terms, preferred names and synonyms.

We appreciate your comments and suggestions in our effort to improve your RSNA web experience.

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Discounted Dues: Eligible North American Countries 
Belize
Costa Rica
Dominican Republic
El Salvador
Grenada
Guatamala
Haiti
Honduras
Jamaica
Netherlands Antilles
Nicaragua
Panama
St.Lucia
St. Vincent & Grenadines
Country    Country    Country 
Afghanistan   Grenada   Pakistan
Albania   Guatemala   Papua New Guinea
Algeria   Guinea   Paraguay
Angola   Guinea-Bissau   Peru
Armenia   Guyana   Phillippines
Azerbaijan   Haiti   Rwanda
Bangladesh   Honduras   Samoa
Belarus   India   Sao Tome & Principe
Belize   Indonesia   Senegal
Benin   Iran   Serbia
Bhutan   Iraq   Sierra Leone
Bolivia   Jordan   Solomon Islands
Bosnia & Herzegovina   Jamaica   Somalia
Botswana   Kenya   South Africa
Bulgaria   Kiribati   South Sudan
Burkina Faso   Korea, Dem Rep (North)   Sri Lanka
Burundi   Kosovo   St Lucia
Cambodia   Kyrgyzstan   St Vincent & Grenadines
Cameroon   Laos\Lao PDR   Sudan
Cape Verde   Lesotho   Swaziland
Central African Republic   Liberia   Syria
Chad   Macedonia   Tajikistan
China   Madagascar   Tanzania
Colombia   Malawi   Thailand
Comoros   Maldives   Timor-Leste
Congo, Dem. Rep.   Mali   Togo
Congo, Republic of   Marshall Islands   Tonga
Cote d'Ivoire   Mauritania   Tunisia
Djibouti   Micronesia, Fed. Sts.   Turkmenistan
Dominica   Moldova   Tuvalu
Domicican Republic   Mongolia   Uganda
Ecuador   Montenegro   Ukraine
Egypt   Morocco   Uzbekistan
El Salvador   Mozambique   Vanuatu
Eritrea   Myanmar   Vietnam
Ethiopia   Namibia   West Bank & Gaza
Fiji   Nepal   Yemen
Gambia, The   Nicaragua   Zambia
Georgia   Niger   Zimbabwe
Ghana   Nigeria    

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