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Titolo:
Robustness of anatomically guided pixel-by-pixel algorithms for partial volume effect correction in positron emission tomography
Autore:
Strul, D; Bendriem, B;
Indirizzi:
CEA, Serv Hosp Frederic Joliot, F-91406 Orsay, France CEA Orsay France F-91406 erv Hosp Frederic Joliot, F-91406 Orsay, France
Titolo Testata:
JOURNAL OF CEREBRAL BLOOD FLOW AND METABOLISM
fascicolo: 5, volume: 19, anno: 1999,
pagine: 547 - 559
SICI:
0271-678X(199905)19:5<547:ROAGPA>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMPUTED-TOMOGRAPHY; PET; QUANTITATION; RESOLUTION;
Keywords:
positron emission tomography; partial volume effect correction; constrained image restoration; data fusion; gray matter positron emission tomography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Strul, D St Thomas Hosp, Clin PET Ctr, Lower Ground Floor,Lambeth Wing,Lambeth Palace Rd, London SE1 7EH, England St Thomas Hosp Lower Ground Floor,Lambeth Wing,Lambeth Palace Rd London England SE1 7EH
Citazione:
D. Strul e B. Bendriem, "Robustness of anatomically guided pixel-by-pixel algorithms for partial volume effect correction in positron emission tomography", J CEREBR B, 19(5), 1999, pp. 547-559

Abstract

Several algorithms have been proposed to improve positron emission tomography quantification by combining anatomical and functional information in a pixel-by-pixel correction scheme. The precision of these methods when applied to real data depends on the precision of the manifold correction steps, such as full-width half-maximum modeling, magnetic resonance imaging-positron emission tomography registration, tissue segmentation, or background activity estimation. A good understanding of the influence of these parametersthus is critical to the effective use of the algorithms. In the current article, the authors present a monodimensional model that allows a simple theoretical and experimental evaluation of correction imprecision. The authorsthen assess correction robustness in three dimensions with computer simulations, and evaluate the validity of regional SD as a correction performancecriterion.

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Documento generato il 09/07/20 alle ore 01:23:17