Radiation barrier for cervical cancer treated with external radiation

VernacularTitle:子宫颈癌四野照射屏蔽铅块设计探讨
Author: Risheng QIN ; Meilian LIU ; Qiuying MA ; Lirong XU ; Taowen LIU ; Qiong WANG ; Shiqi YE
Publication Type:Journal Article
Keywords: Uterine cervical neoplasms; Radiotherapy; Radiotherapy dosage
From: Cancer Research and Clinic 2009;21(11):769-771
CountryChina
Language:Chinese
Abstract: Objective To study more reasonable method of radiation barrier for cervical cancer treated with external radiation. Methods The distance from cervical canals to tumor's margin in x axis was measured by B ultrasonic, around uterus were evaluated by physical examination.and the dose around uterus for patient who used fixed lead brick for radiation barrier when treated with external radiation were calculationed by TPS, in 39 case of cervical cancer treated with external radiation combine with intracavitary irradiation. Pay attention to the lower dose area around uterus. Results It might bring about lower dose area around uterus who used fixed lead brick for radiation barrier when treated with external radiation,and mass might be in above area. Conclusion Cervical cancer treated with external radiation with source axial distance (SAD), and radiation barrier with lead brick individuate may help for to avoid the lower dose area around uterus.