A surgical navigation system based on C-arm fluoroscopy images / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 1106-1110, 2009.
Artigo
em Chinês
| WPRIM
| ID: wpr-244682
ABSTRACT
A surgical navigation system based on X-rays of C-arm with a calibration target has been studied and developed. Extracting images of markers in the two templates on the calibration target, the system is able to establish the relationship between different markers coordinates in different coordinate systems using the algorithm based on the layout of specific markers. The correction of X-ray image distortion and C-arm camera calibration are performed using the images of calibration target as bases. After the parameters of the C-arm projection model being determined, an X-ray image of surgical site will be acquired preoperatively; the surgical instruments will be tracked by the optical position system, and then virtual projections of instruments can be formed on preoperative images. Surgeons will perform operations with the guidance of the system. The C-arm can be used less frequently and the X-ray radiation can be reduced. Cadaveric spine specimen experiments and error analysis have underpinned the clinical feasibility of the system.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Algoritmos
/
Calibragem
/
Fluoroscopia
/
Intensificação de Imagem Radiográfica
/
Artefatos
/
Procedimentos Neurocirúrgicos
/
Cirurgia Assistida por Computador
/
Métodos
Tipo de estudo:
Guia de Prática Clínica
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2009
Tipo de documento:
Artigo
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