title: A multi-resolution approach for content-based image retrieval on the Grid--application to breast cancer detection.
abstract: OBJECTIVE
  Hospitals and medical centers are producing more and more data that need to be processed. Those data are confidential, heterogeneous, and limited to the geographic site where they have been produced. Unless properly anonymized, they cannot be distributed on wide area networks.
  
  
  METHODS
  Grid technologies allow the globalization of storage and processing resources, and enable large-scale experimentations on distributed data. They constitute a promising tool to treat the different data and analyze the knowledge they contain, while offering secured access and high-performance computing capacities to the different users. Our aim is to evaluate the possibilities of grid technologies for handling medical data.
  
  
  CONCLUSIONS
  In this paper, we focus on a breast cancer diagnosis assistance tool, based on distributed and incremental knowledge construction and a content-based image retrieval system. We analyze the different scenarios of uses of such a tool. We further propose an algorithm that indexes mammographic images for content-based query purposes. This algorithm is tested on images of different resolutions in order to reduce the indexation time and we analyze its performance with experiments on the grid.
authors.affiliation: Laboratoire LIRIS, Université Lumière Lyon 2, 69676 Bron cedex, France. khassan@liris.univ-lyon2.fr
authors.forename: K
authors.initials: K
authors.lastname: Hassan
authors.forename: T
authors.initials: T
authors.lastname: Tweed
authors.forename: S
authors.initials: S
authors.lastname: Miguet
mesh_terms: D000465:Algorithms; D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D003628:Database Management Systems; D016208:Databases, Factual; D020000:Decision Support Systems, Clinical; D003936:Diagnosis, Computer-Assisted; D005260:Female; D005602:France; D006801:Humans; D038622:Internationality; D020407:Internet; D008327:Mammography; D016347:Medical Records Systems, Computerized / Q000592:standards*; D016730:Program Development; D011873:Radiology Information Systems; D019112:Teleradiology