Share Email Print
cover

Proceedings Paper

Mesh model 2D reconstruction operator for SPECT
Author(s): Ricard Delgado Gonzalo; Jovan G. Brankov
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper we extend our previous evaluation of 2D tomographic image reconstruction using a content-adaptive mesh model (CAMM) for emission tomography (EM). First we present a model for the projection operator calculation using a ray-tracing algorithm based on mesh modeling for image representation. The proposed calculation allows us to incorporate a non-uniform attenuation and distance-dependent spatial resolution of the imaging system. Next the proposed approach was tested using realistic simulations with the NCAT phantom and SIMIND Monte Carlo simulation of a SPECT system in which the mesh model is calculated using images from pre reconstruction by filtered-back projection. Thereby this paper establishes a necessary step for the future development of 3D reconstruction images and spatio-temporal processing using deformable mesh modeling.

Paper Details

Date Published: 18 March 2008
PDF: 8 pages
Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 69132L (18 March 2008); doi: 10.1117/12.770986
Show Author Affiliations
Ricard Delgado Gonzalo, Illinois Institute of Technology (United States)
Jovan G. Brankov, Illinois Institute of Technology (United States)


Published in SPIE Proceedings Vol. 6913:
Medical Imaging 2008: Physics of Medical Imaging
Jiang Hsieh; Ehsan Samei, Editor(s)

© SPIE. Terms of Use
Back to Top