Incorporation of TV regularization in deconvolution for partial volume correction in PET imaging / 南方医科大学学报
Journal of Southern Medical University
;
(12): 474-480, 2015.
Artigo
em Chinês
| WPRIM
| ID: wpr-239153
ABSTRACT
We propose a method using total variation (TV) regularization in deconvolution for partial volume correction in PET imaging. In the degraded image model, we used TV regularization procedure in Van Cittert (VC) and Richardson-Lucy (RL) deconvolution algorithms. These methods were tested in simulated NCAT images and images of NEMA NU4-2008 IQ phantom and tumor-bearing mouse scanned by Simens Invoen microPET. The simulated experiment and tumor-bearing mouse experiment showed that the algorithms using TV regularization provided superior qualitative and quantitative appearance compared with traditional VC and RL algorithms. When the mean intensity of the tumor increased by (10±1.8)%, the SD increase percentage was decreased from 49.98% to 14.26% and from 42.76% to 4.70%, suggesting the efficiency of the proposed algorithms for reducing PVEs in PET.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Algoritmos
/
Processamento de Imagem Assistida por Computador
/
Imagens de Fantasmas
/
Imageamento Tridimensional
/
Tomografia por Emissão de Pósitrons
Tipo de estudo:
Pesquisa qualitativa
Limite:
Animais
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2015
Tipo de documento:
Artigo
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