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Titolo:
Iterative reconstruction algorithms in nuclear medicine
Autore:
Vandenberghe, S; DAsseler, Y; Van de Walle, R; Kauppinen, T; Koole, M; Bouwens, L; Van Laere, K; Lemahieu, I; Dierckx, RA;
Indirizzi:
State Univ Ghent, ELIS, MEDISIP, B-9000 Ghent, Belgium State Univ Ghent Ghent Belgium B-9000 IS, MEDISIP, B-9000 Ghent, Belgium
Titolo Testata:
COMPUTERIZED MEDICAL IMAGING AND GRAPHICS
fascicolo: 2, volume: 25, anno: 2001,
pagine: 105 - 111
SICI:
0895-6111(200103/04)25:2<105:IRAINM>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; 3-DIMENSIONAL IMAGE-RECONSTRUCTION; SCATTER CORRECTION; EM ALGORITHM; COMPUTERIZED-TOMOGRAPHY; BAYESIAN RECONSTRUCTION; CAMERA; PROJECTIONS; PET; SPECT;
Keywords:
single photon emission computed tomography; positron emission tomography; image reconstruction; iterative methods;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
61
Recensione:
Indirizzi per estratti:
Indirizzo: Vandenberghe, S State Univ Ghent, ELIS, MEDISIP, St Pietersnieuwstr 41, B-9000 Ghent, Belgium State Univ Ghent St Pietersnieuwstr 41 Ghent Belgium B-9000
Citazione:
S. Vandenberghe et al., "Iterative reconstruction algorithms in nuclear medicine", COMP MED IM, 25(2), 2001, pp. 105-111

Abstract

Iterative reconstruction algorithms produce accurate images without streakartifacts as in filtered backprojection. They allow improved incorporationof important corrections for image degrading effects, such as attenuation,scatter and depth-dependent resolution. Only some corrections, which are important for accurate reconstruction in positron emission tomography and single photon emission computed tomography, can be applied to the data beforefiltered backprojection. The main limitation for introducing iterative algorithms in nuclear medicine has been computation time, which is much longerfor iterative techniques than for filtered backprojection. Modern algorithms make use of acceleration techniques to speed up the reconstruction. These acceleration techniques and the development in computer processors have introduced iterative reconstruction in daily nuclear medicine routine. We give an overview of the most important iterative techniques and discuss the different corrections that can be incorporated to improve the image quality. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 06:12:15