A two-point Dixon technique for water-fat separation using multiresolution and region-growing algorithm / 南方医科大学学报
Journal of Southern Medical University
;
(12): 245-250, 2016.
Artigo
em Chinês
| WPRIM
| ID: wpr-273780
ABSTRACT
<p><b>OBJECTIVE</b>An improved water-fat separation method based on region-growing was proposed for use in regions with low signal-noise ratio (SNR).</p><p><b>METHODS</b>Region-growing method was applied to 4 sub-images acquired by a down- sampling operation on the acquired phasor maps. The spatial smoothing constraint was exploited to calculate 4 error phasor maps to construct the final smooth error phasor map, which was used in two-point Dixon technique for water-fat separation.</p><p><b>RESULTS</b>The simulation experiment showed that the proposed method produced smaller errors, and for clinical images of the knees, abdomen and lower limbs, the proposed method achieved accurate water-fat separations.</p><p><b>CONCLUSION</b>The proposed method is more robust and reliable than the original global region-growing algorithm, and serves as a promising water-fat separation method for clinical applications.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Água Corporal
/
Algoritmos
/
Processamento de Imagem Assistida por Computador
/
Diagnóstico por Imagem
/
Imageamento por Ressonância Magnética
/
Aumento da Imagem
/
Tecido Adiposo
/
Abdome
/
Joelho
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2016
Tipo de documento:
Artigo
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