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.
Article
Dans Chinois
| 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>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Eau corporelle
/
Algorithmes
/
Traitement d'image par ordinateur
/
Imagerie diagnostique
/
Imagerie par résonance magnétique
/
Amélioration d'image
/
Tissu adipeux
/
Abdomen
/
Genou
Type d'étude:
Etude diagnostique
/
Étude pronostique
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2016
Type:
Article
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