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Potential Use of Extensible Markup Language for Radiology Reporting: A Tutorial1

Cun Wang, PhD and Charles E. Kahn, Jr, MD

1 From the Office of Clinical Informatics, Medical College of Wisconsin, 9200 W Wisconsin Ave, Milwaukee, WI 53226-3522. Recipient of a Certificate of Merit award for an infoRAD exhibit at the 1998 RSNA scientific assembly. Received April 13, 1999; revision requested July 6 and final revision received September 20; accepted October 1. Supported in part by The Whitaker Foundation. Address reprint requests to C.E.K.



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  		Figure 1.   Incorporation of the definition of data elements within an XML document. In this document, programs that can be used to interpret XML (parsers) have specified the patient's name (John Harrison) and identification number (5021029413) within the <Name> and <PID> elements, respectively.

 


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  		Figure 2.   Report definition for aortic ultrasound (US) written in Data-entry and Reporting Markup Language. The Concept Identifier (CID) attributes refer to the unique identifier of the concept in the UMLS Metathesaurus. Concept relationship (CREL) attributes indicate the relationship between the reporting concept and that in the external vocabulary; for example, LT indicates that the concept in the report is narrower in scope than the externally referenced concept.

 


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  		Figure 3.   Graphical data entry form for structured aortic US reporting. This user interface is defined with the report definition in Figure 2.

 


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  		Figure 4.   XML DTD for structured reporting of aortic US.

 


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  		Figure 5.   XML document instance displays the results of aortic US as defined by the DTD in Figure 4.

 




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