Effect of X-ray exposure parameters on the false-node rate and radiation dose in CyberKnife spine tracking / 中华放射医学与防护杂志
Chinese Journal of Radiological Medicine and Protection
; (12): 133-135, 2014.
Article
en Zh
| WPRIM
| ID: wpr-444859
Biblioteca responsable:
WPRO
ABSTRACT
Objective To explore the relationship of X-ray exposure parameters and false-node rate during image-guidance treatment with CyberKnife spine tracking.Methods Using spine tracking planning on a chest phantom,several combinations of X-ray exposure parameters were used to locate.The false-node ratio and the surface absorbed dose were investigated and the radiation dose was optimized.Results The false-node ratio and surface absorbed radiation dose decreased when the X-ray exposure parameters increased until they saturated.In the range of ≤5.0% false-node rate,the surface absorbed radiation dose was 0.11,0.26 mGy,and 0.31-0.46 mGy,when the false-node rate was 2.77%,1.07%and 1.0%,respectively.Conclusions In image-guided treatment of CyberKnife,the radiation dose would be optimized,and the patient's radiation dose would be reduced greatly,which is important to protect the patients.
Texto completo:
1
Índice:
WPRIM
Tipo de estudio:
Guideline
Idioma:
Zh
Revista:
Chinese Journal of Radiological Medicine and Protection
Año:
2014
Tipo del documento:
Article