Abstract
The paper describes various initial modeling steps for radiological departments, which take the data-flow, function-flow, and work-flow into consideration in different ways. Important contents of DICOM and HL7 are described and their possibilities and limitations to support overall managed workflow are analyzed. The architecture of SIENET, the Siemens PACS, its openness and integration capabilities are presented and illustrated in practical examples of typical data and workflow scenarios. In conclusion, managed workflow is possible today and specific parts are already successfully in operation. Here DICOM is the basis for far-reaching standardized communication in a heterogeneous landscape. For overall managed workflow, however, further efforts must be undertaken in modeling radiological activities as well as in the integration capabilities of various software applications and functions.

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