Integration of CBIR in radiological routine in accordance with IHE
2009
Increasing use of digital imaging processing leads to an enormous amount of imaging data. The access to picture
archiving and communication systems (PACS), however, is solely textually, leading to sparse retrieval results because
of ambiguous or missing image descriptions. Content-based image retrieval (CBIR) systems can improve the clinical
diagnostic outcome significantly. However, current CBIR systems are not able to integrate their results with clinical
workflow and PACS. Existing communication standards like DICOM and HL7 leave many options for implementation
and do not ensure full interoperability. We present a concept of the standardized integration of a CBIR system for the
radiology workflow in accordance with the Integrating the Healthcare Enterprise (IHE) framework. This is based on the
IHE integration profile 'Post-Processing Workflow' (PPW) defining responsibilities as well as standardized
communication and utilizing the DICOM Structured Report (DICOM SR). Because nowadays most of PACS and RIS
systems are not yet fully IHE compliant to PPW, we also suggest an intermediate approach with the concepts of the
CAD-PACS Toolkit. The integration is independent of the particular PACS and RIS system. Therefore, it supports the
widespread application of CBIR in radiological routine. As a result, the approach is exemplarily applied to the Image
Retrieval in Medical Applications (IRMA) framework.
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