Respiration tracking in radiosurgery without fiducials.
Int J Med Robot
; 1(2): 19-27, 2005 Jan.
Article
em En
| MEDLINE
| ID: mdl-17518375
ABSTRACT
In robotic radiosurgery, a focused beam of radiation is moved by a robot arm. We investigated methods for soft-tissue navigation using robotic radiosurgery. In previous work we described a method for real-time tracking based on correlation between the motion of implanted fiducial markers and external skin markers. In this work we extend our method of correlation-based tracking to tracking without implanted fiducials. We propose to use deformation algorithms on CT data sets combined with registration of digitally reconstructed radiographs and intra-treatment X-ray images to obtain intermittent information on the target location. This information is then combined with our basic correlation method to achieve real-time tracking. Our study investigates the feasibility of this approach from the point of view of computing time and required level of user interaction. The term 7D registration is coined to describe the underlying method for performing this task.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Respiração
/
Robótica
/
Monitorização Intraoperatória
/
Radiocirurgia
Limite:
Humans
Idioma:
En
Revista:
Int J Med Robot
Ano de publicação:
2005
Tipo de documento:
Article