Decentralized Access to Medical Images in Research and Enterprise PACS Tomáš Kulhánek, Milan Šárek

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Presentation transcript:

Decentralized Access to Medical Images in Research and Enterprise PACS Tomáš Kulhánek, Milan Šárek TERENA NETWORKING CONFERENCE 2008

CESNET Czech NREN

Overview Sharing Medical images Decentralized solution based on grid

Data form and protocol – DICOM (Digital Imaging and Communications in Medicine) Storage, data flow – PACS (Picture Archiving and Communication Systems) Systems for medical image sharing

Sharing within 1 hospital or institution - PACS Sharing among (more than 1) institutions Secured communication User authorization Centralized systems MeDiMed (ICT, Masaryks University in Brno) Communication centre for sharing data ReDiMed (ICT, Masaryks University in Brno) ePACS (ICZ a.s.) Storage and communication distributed in grid Globus MEDICUS Medical Data Manager

MeDiMed Metropolitan Digital Imaging System in Medicine Central storage of medical images Located in Brno Connects hospitals and institutions Productive running & education

Distributed PACS - ReDiMed Server Servis Konzola Instituce Servis Konzola - Client software connects to local DICOM & PACS - Digital signature, asymetric encryption - Server works as message broker - ICT, Masaryks University in Brno -

ReDiMed

Example of enterprise distributed PACS - ePACS Software & hardware client DICOM over VPN (virtual private network)

General problem with central element network topology degrades to star topology

Load balancing Load balancing among homogenous nodes

decentralization Storage and services distributed in heterogenous network

Globus MEDICUS – DICOM over Grid DICOM Grid Interface Service - Gateway Meta Catalog Service Storage Service Provider Meta Catalog Service Gateway

Globus MEDICUS in CESNET Test nodes on high speed CESNET network Central Military Hospital, Charles University, MeDiMed

Globus MEDICUS - positives Data grid Standard based WSRF, OGSA SOA based Extending system with additional services (computational service) Existing open source implementation Globus toolkit, DICOM Grid Interface Service Repair or customize existing functionality

Issues DICOM images in several nodes Strong encryption Access to foreign DICOM images Federated authorization - Shibboleth Grid under-utilized in most real use cases

Plans for the future Enhance existing topology of local/metropolitan centralized systems Interconnect several existing local/metropolitan systems Education – live anonymized studies on current patients Enhance data grid with computational functionality

References

Thank you for your attention Tomáš Kulhánek Milan Šárek