Two-step image registration based on control volumes / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1801-1805, 2011.
Article
Dans Chinois
| WPRIM
| ID: wpr-333807
ABSTRACT
<p><b>OBJECTIVE</b>To increase the accuracy of beam targeting and improve the dose distributions in radiotherapy using a robust image registration algorithm based on control volumes.</p><p><b>METHODS</b>Control volume mapping and thin-plate spline deformable transformation were combined. The use of the control volumes increased the accuracy for the deformable registration. A bi-directional mapping method was also employed to correctly match the control volumes.</p><p><b>RESULTS</b>The clinical images were simulated using the proposed two-step image registration algorithm. The simulation results indicated that the registration algorithm was robust and universal, even in cases of obvious deformation.</p><p><b>CONCLUSIONS</b>The algorithm provides a more convenient and robust resolution as compared to manual landmark-based methods and single-step deformable transformations, and may help in automatic image registration in radiation therapy.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Algorithmes
/
Traitement d'image par ordinateur
/
Planification de radiothérapie assistée par ordinateur
/
Radiothérapie conformationnelle
/
Méthodes
Type d'étude:
Guide de pratique
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2011
Type:
Article
Documents relatifs à ce sujet
MEDLINE
...
LILACS
LIS