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Proceedings Paper

Scalable fault tolerant image communication and storage grid
Author(s): David Slik; Oliver Seiler; Tym Altman; Mike Montour; Mohammad Kermani; Walter Proseilo; David Terry; Midori Kawahara; Chris Leckie; Dale Muir
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Paper Abstract

Increasing production and use of digital medical imagery are driving new approaches to information storage and management. Traditional, centralized approaches to image communication, storage and archiving are becoming increasingly expensive to scale and operate with high levels of reliability. Multi-site, geographically-distributed deployments connected by limited-bandwidth networks present further scalability, reliability, and availability challenges. A grid storage architecture built from a distributed network of low cost, off-the-shelf servers (nodes) provides scalable data and metadata storage, processing, and communication without single points of failure. Imaging studies are stored, replicated, cached, managed, and retrieved based on defined rules, and nodes within the grid can acquire studies and respond to queries. Grid nodes transparently load-balance queries, storage/retrieval requests, and replicate data for automated backup and disaster recovery. This approach reduces latency, increases availability, provides near-linear scalability and allows the creation of a geographically distributed medical imaging network infrastructure. This paper presents some key concepts in grid storage and discusses the results of a clinical deployment of a multi-site storage grid for cancer care in the province of British Columbia.

Paper Details

Date Published: 19 May 2003
PDF: 12 pages
Proc. SPIE 5033, Medical Imaging 2003: PACS and Integrated Medical Information Systems: Design and Evaluation, (19 May 2003); doi: 10.1117/12.480649
Show Author Affiliations
David Slik, Bycast Inc. (Canada)
Oliver Seiler, Bycast Inc. (Canada)
Tym Altman, Bycast Inc. (Canada)
Mike Montour, Bycast Inc. (Canada)
Mohammad Kermani, Bycast Inc. (Canada)
Walter Proseilo, Bycast Inc. (Canada)
David Terry, Bycast Inc. (Canada)
Midori Kawahara, BC Cancer Agency (Canada)
Chris Leckie, BC Cancer Agency (Canada)
Dale Muir, Consultant (Canada)

Published in SPIE Proceedings Vol. 5033:
Medical Imaging 2003: PACS and Integrated Medical Information Systems: Design and Evaluation
H. K. Huang; Osman M. Ratib, Editor(s)

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