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Proceedings Paper

CEDIMS: cloud ethical DICOM image Mojette storage
Author(s): Jeanpierre Guédon; Pierre Evenou; Pierre Tervé; Sylvain David; Jérome Béranger
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Paper Abstract

Dicom images of patients will necessarily been stored in Clouds. However, ethical constraints must apply. In this paper, a method which provides the two following conditions is presented: 1) the medical information is not readable by the cloud owner since it is distributed along several clouds 2) the medical information can be retrieved from any sufficient subset of clouds In order to obtain this result in a real time processing, the Mojette transform is used. This paper reviews the interesting features of the Mojette transform in terms of information theory. Since only portions of the original Dicom files are stored into each cloud, their contents are not reachable. For instance, we use 4 different public clouds to save 4 different projections of each file, with the additional condition that any 3 over 4 projections are enough to reconstruct the original file. Thus, even if a cloud is unavailable when the user wants to load a Dicom file, the other 3 are giving enough information for real time reconstruction. The paper presents an implementation on 3 actual clouds. For ethical reasons, we use a Dicom image spreaded over 3 public clouds to show the obtained confidentiality and possible real time recovery.

Paper Details

Date Published: 16 February 2012
PDF: 12 pages
Proc. SPIE 8319, Medical Imaging 2012: Advanced PACS-based Imaging Informatics and Therapeutic Applications, 831907 (16 February 2012); doi: 10.1117/12.911396
Show Author Affiliations
Jeanpierre Guédon, IRCCyN, CNRS, Univ. de Nantes (France)
Pierre Evenou, IRCCyN, CNRS, Univ. de Nantes (France)
Fizians (France)
Pierre Tervé, Keosys (France)
Sylvain David, Fizians (France)
Jérome Béranger, Keosys (France)

Published in SPIE Proceedings Vol. 8319:
Medical Imaging 2012: Advanced PACS-based Imaging Informatics and Therapeutic Applications
William W. Boonn; Brent J. Liu, Editor(s)

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