Indexing and retrieving DICOM data in disperse and unstructured archives

Area of Science:

• Medical Imaging Informatics
• Distributed Systems
• Health Information Management

Background:

• Increasing power and decreasing cost of medical imaging modalities lead to data dispersion.
• Small imaging centers face challenges in managing and accessing dispersed DICOM data.
• Traditional Picture Archiving and Communication Systems (PACS) are often not cost-effective for smaller institutions.

Purpose of the Study:

• To propose an indexing and retrieval solution for distributed DICOM documents.
• To enable Google-like searches and access to a virtual data repository.
• To provide a cost-effective PACS alternative for smaller institutions.

Main Methods:

• Development of a peer-to-peer PACS platform.
• Indexing and querying DICOM files across distributed repositories.
• Utilizing a public domain document-indexing engine.
• Extending traditional PACS query and retrieval mechanisms.

Main Results:

• A federated unit of distributed DICOM repositories is logically created.
• The platform supports complex searching requirements from single to distributed environments.
• Performance and robustness demonstrated through trials.

Conclusions:

• The proposed PACS platform effectively addresses complex search needs in distributed scenarios.
• The solution is particularly valuable for small institutions, educational, and research groups.
• It offers a robust and performant alternative to traditional PACS.