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January 12: NIBIB-RSNA RadLex Ontology Project

RadLex is supported both by the National Institute of Biomedical Imaging and Bioengineering (NIBIB) and by the cancer Biomedical Informatics Grid (caBIG) project of the National Cancer Institute (NCI).

The purpose of the NIBIB supported RSNA RadLex Ontology project is to provide a uniform source of terms and concepts for indexing and retrieving a variety of imaging information sources, such as imaging research databases, educational materials, and clinical imaging reports.

When complete, the RadLex Ontology will be capable of describing the salient aspects of an imaging examination, including modality, technique, visual features, anatomy, findings, and pathology. The RadLex Ontology will be available for use by a wide variety of software tools and web-based information resources, including major NIH bioinformatics projects, e.g. caBIG, BIRN, CTSA.

This project creates the RadLex Ontology of interconnected radiology concepts from the list of RadLex terms in different domains, such as Cardiovascular, Musculoskeletal, Neuroradiology, Abdominal, Pediatric, Thoracic Systems, etc.

NIBIB-RSNA RadLex Ontology project leverages the current RSNA RadLex effort. The RadLex project has enlisted the collaboration of other radiology organizations, including RSNA and the American College of Radiology (ACR), to develop a comprehensive radiology lexicon. It has been designed to satisfy the needs of software developers, system vendors, and radiology users by adopting the best features of existing terminology systems. The RadLex terms have mapped to SNOMED-CT of the College of American Pathologists (CAP). It will also be as part of the DICOM Content Mapping Resource.

RSNA has aggressively promoted RadLex ontology to RSNA members at the RSNA annual meeting each fall. The RadLex ontology has been disseminated through RadLex web site, BioPortal web site, the National Center for Biomedical Ontology, the caBIG, and the NCI Metathesaurus. RadLex Ontology has been adopted by commercial companies, academia, and societies, such as:

• M*Modal/GE Healthcare
• Oracle Corporation
• Fuji Medical Systems
• StructuRad ReportNowTM
• GoldminerTM
• RSNA-MIRC
• RadScope
• RadPix
• MyPACS.net
• American Board of Radiology
• NCI National Cancer Imaging Archive (NCIA)
• Biomedical Informatics Research Network (BIRN)
• Brinkley NCBO collaborating R01 (Created a combined RadLex FMA view for annotating abdominal images).
• Royal College of Radiology, UK
• American College of Radiology (ACR Index, possibly BI-RADS)
• College of American Pathologists (SNOMED-CT)
• DICOM (cooperation with WG8)
• HL7 (RadLex registered in the OID Registry and assigned the Pending OID of 2.16.840.1.113883.6.256)
• National Center for Biomedical Ontology (NCBO)—RadLex available in Bioportal

On the RSNA RadLex web site (http://www.rsna.org/RadLex/), it states: “RadLex is supported both by the National Institute of Biomedical Imaging and Bioengineering (NIBIB) and by the cancer Biomedical Informatics Grid (caBIG) project of the National Cancer Institute (NCI).”