DICOM in the XML Schema Design Language (XSDL)

نویسنده

  • Robert C. Leif
چکیده

Content: In 1998, I proposed that the International Society for Advancement of Cytometry should replace their present Flow Cytometry Standard with an implementation in DICOM and work with the DICOM developers. After this suggestion was rejected, I suggested an XML implementation based upon DICOM to the International Society for Advancement of Cytometry Data Standards Task Force. Technology: XML Schema Design Language is the basis for the development of a new standard (CytometryML) for cytometry metadata. The schemas have been validated with XMLSpy and Stylus Studio. The relevance of the composition of the major schemas has been tested by the automated creation of XML pages and the manual entry of data into them. Design: Since only data-types including data structures and objects are described in schemas, object oriented design principles were followed in their design, which, wherever possible, was based on DICOM. Strong typing, minimization of the coupling of independent higher-level schemas, and maximization of the cohesion of individual schemas were design principles. Container files for multiple XML pages that included a table of contents were employed instead of mimicking a DICOM directory structure. Results: XML schemas that describe the metadata XML documents for two related types of container files have been created. The series container includes the metadata files that are constant for a set of measurements, such as the instrument description. The instance container includes the metadata and binary data that is specific to an individual or small closely related group of measurements, such as the instrument settings and staining protocols. Schemas for digital microscopes and flow cytometers, as well as image and list-mode (waveform) data have been created. Conclusion: It is possible to translate DICOM data-types into conventional, readable, modular XML

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تاریخ انتشار 2009