Optimization study on clinical dose calculation in semi-field irradiation / 中国医学装备
China Medical Equipment
;
(12): 27-29, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-445754
ABSTRACT
Objective:
A correction factor was proposed to improve the accuracy of dose calculation in conventional radiotherapy when filed matching technique was used.Methods:
Use the linear accelerator with independent collimator to implement semi-field irradiation under different equivalent-length field. Measure the dose and compare it with the calculation dose. Obtain a correction factor which change follow the equivalent-length through data fitting.Results:
There is relationship to indicate the correction factor increase if the field area enlarge;the calculation dose will be close to the measure dose, and the accuracy will improve by correcting;Conclusion:
The clinical dose of semi-field irradiation can be calculated by an equivalent square field technique , and then multiplied by the correction factor. it is a simple method to improve the accuracy of dose calculation in conventional radiotherapy by using semi-filed correction factor when filed matching technique was used.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
China Medical Equipment
Year:
2014
Type:
Article
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