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.
Artículo
en Chino
| 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:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Agua Corporal
/
Algoritmos
/
Procesamiento de Imagen Asistido por Computador
/
Diagnóstico por Imagen
/
Imagen por Resonancia Magnética
/
Aumento de la Imagen
/
Tejido Adiposo
/
Abdomen
/
Rodilla
Tipo de estudio:
Estudio diagnóstico
/
Estudio pronóstico
Límite:
Humanos
Idioma:
Chino
Revista:
Journal of Southern Medical University
Año:
2016
Tipo del documento:
Artículo
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