16 March 2006 Peer-to-peer architecture for multi-departmental distributed PACS
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We have elected to explore peer-to-peer technology as an alternative to centralized PACS architecture for the increasing requirements for wide access to images inside and outside a radiology department. The goal being to allow users across the enterprise to access any study anytime without the need for prefetching or routing of images from central archive. Images can be accessed between different workstations and local storage nodes. We implemented "bonjour" a new remote file access technology developed by Apple allowing applications to share data and files remotely with optimized data access and data transfer. Our Open-source image display platform called OsiriX was adapted to allow sharing of local DICOM images through direct access of each local SQL database to be accessible from any other OsiriX workstation over the network. A server version of Osirix Core Data database also allows to access distributed archives servers in the same way. The infrastructure implemented allows fast and efficient access to any image anywhere anytime independently from the actual physical location of the data. It also allows benefiting from the performance of distributed low-cost and high capacity storage servers that can provide efficient caching of PACS data that was found to be 10 to 20 x faster that accessing the same date from the central PACS archive. It is particularly suitable for large hospitals and academic environments where clinical conferences, interdisciplinary discussions and successive sessions of image processing are often part of complex workflow or patient management and decision making.
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Antoine Rosset, Antoine Rosset, Joris Heuberger, Joris Heuberger, Lance Pysher, Lance Pysher, Osman Ratib, Osman Ratib, "Peer-to-peer architecture for multi-departmental distributed PACS", Proc. SPIE 6145, Medical Imaging 2006: PACS and Imaging Informatics, 61450E (16 March 2006); doi: 10.1117/12.653520; https://doi.org/10.1117/12.653520


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