A new Bayesian reconstruction algorithm for PET images based on correction of the detected sinogram data / 南方医科大学学报
Journal of Southern Medical University
;
(12): 325-328, 2007.
Artigo
em Chinês
| WPRIM
| ID: wpr-298174
ABSTRACT
<p><b>OBJECTIVE</b>To improve Bayesian reconstruction of positron-emission tomography (PET) images by devising a novel coupled feedback (CF) iterative model.</p><p><b>METHODS</b>The CF iterative algorithm was applied to update the noisy detected emission sinogram data using the latest reconstructed image in the iterative process of PET reconstruction. The relevant operations included linear filtering, wiener filtering, and projection of the reconstructed images. The sinogram data used in the study was obtained from simulated phantom data.</p><p><b>RESULTS</b>The experiments and corresponding visional and quantitative comparisons showed that the new method had better performance than the traditional Bayesian reconstruction of PET images for improvement of the PET images.</p><p><b>CONCLUSIONS</b>The proposed sinogram-correcting method allows improvement on the original measurement data, and is applicable for PET image reconstruction or other reconstruction tasks with high noise level.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Algoritmos
/
Processamento de Imagem Assistida por Computador
/
Teorema de Bayes
/
Tomografia por Emissão de Pósitrons
/
Métodos
/
Modelos Teóricos
Tipo de estudo:
Estudo prognóstico
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2007
Tipo de documento:
Artigo
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