The Effect of the Position Change of the Upper Limbs to the Setup Accuracy in the Practice of Immobilizing the Thoracic Cancer Patients by Using Vacuum Bags and Body Frames
- VernacularTitle:真空袋配合定位体架固定胸部肿瘤病人时上肢位置变化对摆位精度的影响
- Author:
Chengjun LI
;
Guangdong MA
;
Luzhou WANG
;
Aihua ZHANG
;
Liming XU
- Publication Type:Journal Article
- Keywords:
radiotherapy;
set-up reference point
- From:
Chinese Journal of Medical Physics
2009;26(6):1472-1473,1484
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the position change of the setup reference markers on the sternum due to the change of hands grip position. Methods: Six hands grip positions were simulated for 8 patients and the set-up reference points marked on the sternum skin were compared while the hands grasped different positions of the hands. Results: The setup markers on the sternum were deviated by all five hands grip positions. The maximum deviated distance was 14mm. Conclusion: The change of the hands grip position can affect the position of setup reference markers on the sternum of the patients and thus the isocenter of plan may be aligned to the wrong area.
