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Influence of laser positioning system to position repeatability in the use of improved belly board / 肿瘤研究与临床
Cancer Research and Clinic ; (6): 624-625, 2014.
Article in Chinese | WPRIM | ID: wpr-468713
ABSTRACT
Objective To investigate influence of laser positioning system to position repeatability of patients treated with radiotherapy for pelvic tumors.Methods Forty patients with pelvic tumors were divided into two groups,using laser positioning system positioning (20 cases) and conventional positioning (20 cases),respectively,CBCT was used to verify and analyze the setup errors of two groups.Results The setup errors on X,Y and Z axes in laser positioning system positioning group were (2.63±1.07) mm,(2.38±1.28) mm and (2.46±1.21) mm,they were (3.04±1.22) mm,(2.55±1.35) mm and (3.09±1.37) mm in conventional positioning group.It has significance reduce on X and Z axes (P =0.040,0.003,respectively) by using laser positioning system,and has no significance on Y axis (P =0.432).Conclusion It can improve patient positioning repeatability effectively by using laser positioning system for patient positioning.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Cancer Research and Clinic Year: 2014 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Cancer Research and Clinic Year: 2014 Type: Article