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.
Artículo
en Chino
| 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>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Algoritmos
/
Procesamiento de Imagen Asistido por Computador
/
Planificación de la Radioterapia Asistida por Computador
/
Radioterapia Conformacional
/
Métodos
Tipo de estudio:
Guía de Práctica Clínica
Límite:
Humanos
Idioma:
Chino
Revista:
Journal of Southern Medical University
Año:
2011
Tipo del documento:
Artículo
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