Grid PACS

1
Grid PACS
www.projectmobius.org www.multiscalecomputing.org
Ohio State University Department of Biomedical
Informatics Multiscale Computing Laboratory
Shannon Hastings and Scott Oster and Stephen
Langella Tahsin Kurc, Tony Pan, Joel Saltz

• The GridPACS project leverages the core Mobius
  services as well as Datacutter and IP4G
  middleware in order to create a grid enabled
  image analysis workflow and review system.
• Designed to address the storage, querying, and
  processing requirements of large-scale image
  databases in a grid wide environment.
• Enables modeling and execution of image
  processing workflows
• Enables client-side query and review of large
  scale distributed image archives
• Provides a user workbench to simplify the use of
  backend distributed middleware.

Mobius GridPACS

• Mobius
• Grid service based infrastructure enabling easy
  creation of a data grid.
• The Mobius project identifies, defines, and
  builds a set of services and protocols enabling
  the management and integration of both data and
  data definitions.
• Service definitions broken into two components
• The protocol definitions.
• The service implementation of those definitions.
• Mobius intends to conform to all standards set
  forth by the GGF and will attempt to leverage
  relevant existing grid technologies.
• Currently support the GGF/DAIS XML Realization
  Proposed Specification

• DataCutter
• A toolkit that makes it easy to create parallel,
  distributed filter stream based processing
  applications.
• Users provide application code as runnable
  filters.
• Ability to harness a heterogeneous grid of
  compute and storage hardware in order to scale up
  user application across compute hardware.
• Dynamic loading of filters, XML based workflow
  model.

• Image Processing For The Grid (IP4G)
• A toolkit that makes it easy to create parallel,
  distributed image processing applications.
• Built on the DataCutter framework.
• Enables using Insight Segmentation and
  Registration Toolkit (ITK) and Visualization
  Toolkit (VTK) in a grid-based computation
  environment.

• Mobius Storage Cluster
• Distributed and scalable generic data storage
  cluster.
• Stores schemas that define studies, workflow,
  images, and protocol.
• Stored data is indexed based on schemas.
• Images can be processes in a parameter study and
  stored for later review.
• Original images as well as processed images are
  store and can be correlated using related
  metadata information such as algorithm,
  parameters, type, etc.