![]() ![]() ![]() 6 RadLex is being developed by acquiring the terms relevant to the radiology subdisciplines (abdominal, cardiovascular, musculoskeletal, pediatric, thoracic, and neuroradiology). RadLex is a project to create a comprehensive medical imaging terminology for capturing, indexing, and retrieving a variety of radiology information resources. The lack of standards in terminology conventions creates a barrier for comparing studies across enterprises and among health organizations, and it also hampers research because it is difficult to retrieve indexed case material in a consistent manner. Hospitals contain a diversity of computerized information systems, and they often refer to the same procedures, findings, and diagnoses using different terminologies. The radiology community has also recently recognized the need for developing a standardized terminology. Many terminologies and ontologies have been appearing throughout biomedicine, including genomics, 1 molecular biology, 2 anatomy, 3 clinical research, 4 and clinical care. Ontologies are similar to terminologies, but generally contain rich knowledge about their terms (through attributes and relations) with the goal of describing the entities that exist in a domain. Terminologies (also called “ vocabularies” and “ lexicons”) are collections of labels or terms (or “entities”) particular to a subject field or domain of human activity, developed for the purpose of documenting and promoting correct usage. ![]() Terminologies and ontologies are related. The language of biomedicine is rich and diverse, and many domains recognizing the need to standardize the language they use have been developing terminologies and ontologies. In this report, we describe Protégé’s features and its particular advantages in the radiology domain in the creation, maintenance, and use of radiology terminology. In addition, Protégé has an extensible plug-in architecture, and its large user community has contributed a rich library of components and extensions that provide much additional useful functionalities. Protégé provides several features particularly useful to managing radiology terminologies: an intuitive graphical user interface for navigating large taxonomies, visualization components for viewing complex term relationships, and a programming interface so developers can create terminology-driven radiology applications. The RadLex project has recently adopted Protégé for managing its radiology terminology. There are more than 70,000 registered users of Protégé who are using the system to manage terminologies and ontologies in many different domains. It is more than a terminology-editing tool, as it also provides a platform for developers to use the terminologies in end-user applications. Protégé ( ) is an open-source tool that allows developers to create and to manage terminologies and ontologies. The development and maintenance of these terminologies are challenging, however, because there are few specialized tools to help developers to browse, visualize, and edit large taxonomies. The development of standard terminologies such as RadLex is becoming important in radiology applications, such as structured reporting, teaching file authoring, report indexing, and text mining. ![]()
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