Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Efficient Methodology for 3D Statistical Reconstruction of High Resolution Coplanar PET/CT Scanner
Year:2008
Research Areas
  • Electronics engineering
Information
Abstract
A fully 3D statistical image reconstruction algorithm has been developed for a high-resolution coplanar PETtCT scanner based on rotating planar PET detectors. The system matrix has been modeled with custom Monte Carlo techniques optimized for the specific scanner architecture. The system model includes positron range, non-colinearity of gamma rays and crystal interaction modelling with attenuation and Compton scattering effects. Only 0.21 % of the system matrix columns are modeled in detail, obtaining the rest of the values with axial and transaxial voxel-driven symmetries. The iterative algorithm is a fully 3D approach, regularized with the anatomical registered image using a novel version of the minimum cross entropy (MXE) scheme, and accelerated employing ordered subsets. The proposed method has been shown to produce images with superior quality than 3D hybrid (FORE+2D-OSEM) algorithms applied on synthetic GATE data, as well as on real small animal acquisitions.
International
Si
Congress
IEEE Nuclear Science Symposium and Medical Imaging Conference
960
Place
Dresden, Alemania
Reviewers
Si
ISBN/ISSN
978-1-4244-2714-7
Start Date
19/10/2008
End Date
25/10/2008
From page
5096
To page
5100
IEEE Nuclear Science Symposium Conference Record
Participants
  • Participante: Manuel Desco (Hospital G.U. Gregorio Marañon)
  • Autor: Juan Enrique Ortuño Fisac (UPM)
  • Autor: Andres de Santos Lleo (UPM)
  • Autor: Pedro Guerra Gutierrez (UPM)
  • Participante: Juan Jose Vaquero (Hospital G.U. Gregorio Marañon)
  • Autor: José Luis Rubio Guivernau (UPM)
  • Autor: Georgios Kontaxakis Antoniadis (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Tecnología de imágenes biomédicas
  • Centro o Instituto I+D+i: Centro de tecnología Biomédica CTB
  • Departamento: Ingeniería Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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