Multimodal non-rigid registration methods based on local variability measures in computed tomography and magnetic resonance brain images (Articolo in rivista)

Type
Label
  • Multimodal non-rigid registration methods based on local variability measures in computed tomography and magnetic resonance brain images (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1049/iet-ipr.2013.0705 (literal)
Alternative label
  • Isnardo Reducindo 1, Aldo R. Mejia-Rodriguez 2,3, Edgar R. Arce-Santana 1, Daniel U. Campos-Delgado 1, Flavio Vigueras-Gomez 1, Elisa Scalco 3, Anna M. Bianchi 2, Giovanni M. Cattaneo 4, Giovanna Rizzo 3 (2014)
    Multimodal non-rigid registration methods based on local variability measures in computed tomography and magnetic resonance brain images
    in IET image processing (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Isnardo Reducindo 1, Aldo R. Mejia-Rodriguez 2,3, Edgar R. Arce-Santana 1, Daniel U. Campos-Delgado 1, Flavio Vigueras-Gomez 1, Elisa Scalco 3, Anna M. Bianchi 2, Giovanni M. Cattaneo 4, Giovanna Rizzo 3 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Pubblicato on-line: 2 Giugno 2014 (literal)
Rivista
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  • 10 (literal)
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  • 1. Faculty of Sciences, Autonomous University of San Luis Potosi, Mexico 2. Bioengineering Department, Politecnico di Milano, Milan, Italy 3. Institute of Molecular Bioimaging and Physiology (IBFM), Italian National Research Council (CNR), Milan, Italy 4. Medical Physics Department, Ospedale San Raffaele, Scientific Institute, Milan, Italy (literal)
Titolo
  • Multimodal non-rigid registration methods based on local variability measures in computed tomography and magnetic resonance brain images (literal)
Abstract
  • This paper presents a novel non-rigid multimodal registration method that relies on three basic steps: first, an initial approximation of the deformation field is obtained by a parametric registration technique based on particle filtering; second, an intensity mapping based on local variability measures (LVM) is applied over the two images in order to overcome the multimodal restriction between them; and third, an optical flow method is used in an iterative way to find the remaining displacements of the deformation field. Hence the new methodology offers a solution for multimodal NRR by a quadratic optimisation over a convex surface, which allows independent motion of each pixel, in contrast to methods that parameterise the deformation space. To evaluate the proposed method, a set of magnetic resonance/computed tomography clinical studies (pre- and post-radiotherapy treatment) of three patients with cerebral tumour deformations of the brain structures was employed. The resulting registration was evaluated both qualitatively and quantitatively by standard indices of correspondence over anatomical structures of interest in radiotherapy (brain, tumour and cerebral ventricles). These results showed that one of the proposed LVM (entropy) offers a superior performance in estimating the non-rigid deformation field. (literal)
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