105 research outputs found
Grid Databases for Shared Image Analysis in the MammoGrid Project
The MammoGrid project aims to prove that Grid infrastructures can be used for
collaborative clinical analysis of database-resident but geographically
distributed medical images. This requires: a) the provision of a
clinician-facing front-end workstation and b) the ability to service real-world
clinician queries across a distributed and federated database. The MammoGrid
project will prove the viability of the Grid by harnessing its power to enable
radiologists from geographically dispersed hospitals to share standardized
mammograms, to compare diagnoses (with and without computer aided detection of
tumours) and to perform sophisticated epidemiological studies across national
boundaries. This paper outlines the approach taken in MammoGrid to seamlessly
connect radiologist workstations across a Grid using an "information
infrastructure" and a DICOM-compliant object model residing in multiple
distributed data stores in Italy and the UKComment: 10 pages, 5 figure
Applying SOAP to OAI-PMH
The Web Services paradigm for distributed computing promises to provide a breakthrough in interoperability by defining standardised mechanisms for inter-process communication. The SOAP standard, in particular, is widely discussed but not as widely adopted by standards bodies. The OAI is one such organisation that has been criticised for not adopting SOAP. Since the OAI-PMH is driven by semantics and SOAP describes syntax, a merger of the two technologies seems natural and inevitable. This paper discusses an attempt to remodel and repackage the OAI-PMH as a layer over SOAP and implement an end-to-end solution based on this experimental protocol. The project highlighted important concerns, such as the relative efficiency of layering in structured textual data and the problem of moving standards. The results show that few compromises are needed for a move to SOAP provided that protocol design is appropriately abstracted, and this has far reaching implications for the adoption of SOAP and Web Services within the DL community and OAI in particular
The MammoGrid Project Grids Architecture
The aim of the recently EU-funded MammoGrid project is, in the light of
emerging Grid technology, to develop a European-wide database of mammograms
that will be used to develop a set of important healthcare applications and
investigate the potential of this Grid to support effective co-working between
healthcare professionals throughout the EU. The MammoGrid consortium intends to
use a Grid model to enable distributed computing that spans national borders.
This Grid infrastructure will be used for deploying novel algorithms as
software directly developed or enhanced within the project. Using the MammoGrid
clinicians will be able to harness the use of massive amounts of medical image
data to perform epidemiological studies, advanced image processing,
radiographic education and ultimately, tele-diagnosis over communities of
medical "virtual organisations". This is achieved through the use of
Grid-compliant services [1] for managing (versions of) massively distributed
files of mammograms, for handling the distributed execution of mammograms
analysis software, for the development of Grid-aware algorithms and for the
sharing of resources between multiple collaborating medical centres. All this
is delivered via a novel software and hardware information infrastructure that,
in addition guarantees the integrity and security of the medical data. The
MammoGrid implementation is based on AliEn, a Grid framework developed by the
ALICE Collaboration. AliEn provides a virtual file catalogue that allows
transparent access to distributed data-sets and provides top to bottom
implementation of a lightweight Grid applicable to cases when handling of a
large number of files is required. This paper details the architecture that
will be implemented by the MammoGrid project.Comment: Talk PSN MOAT0005 from the 2003 Computing in High Energy and Nuclear
Physics (CHEP03), La Jolla, Ca, USA, March 2003, 6 pages, 4 figure
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