肿瘤防治研究2011，Vol.38Issue(4)：416-419,4.DOI:10.3971/j.issn.1000-8578.2011.04.013
宫颈癌IMRT治疗中俯卧位Belly-board不同位置对靶区动度和剂量分布的影响
Influence of Two Different Prone Positions with Belly-board on Target Motions and Dose Distributions in IMRT Treatment of Cervical Cancer
余建云 1李林均 1陈萍 1冉立 2洪卫 2常建英 2付和宜2
作者信息
- 1. 442000,湖北十堰,湖北医药学院附属人民医院肿瘤中心
- 2. 贵州省贵阳医学院附属贵州省肿瘤医院肿瘤科
- 折叠
摘要
Abstract
Objective To investigate the influence of two different prone positions with belly-board on target motions and their dose distributions in pelvic 3-Dimension intensity-modulated radiation radiotherapy of cervical cancer. Methods The motion ranges of GTV under two different prone positions with belly-board (The first prone position: the lower end of belly-board hole opening near the upper end of lumbosacral junction; the second prone position: the lower end of belly-board hole opening near the lower end of the sacroiliac joints) and the dose-volume histograms of GTV, CTV and PTVwere measured for all 10 cervical cancer patients received pelvic radiotherapy, and the relationship of them was compared. Results The target motions under two different prone positions with belly-board are existed in the abdomen-back' directions( 1～ 1. 5cm), and have statistical significance (P＜0. 05), while there is no statistical significance in the head-feet' directions and left-right' directions(P＞0. 05); But the dose-volume histogram changes of GTV, CTV and PTV under two different prone positions with belly-board are no Statistical significance(P＞0. 05). Conclusion The target motions under two different prone positions with belly-board are existed, but they have no influence on dose-volume histograms of themselves.关键词
宫颈癌/Belly-board靶区移动/盆腔放疗/三维适形放疗/调强放疗Key words
Cervical cancer/ Belly-board/ Target motions/ Pelvic radiotherapy/ 3-Dimension conformal radiation therapy/ 3-Dimension intensity-modulated radiation therapy分类
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余建云,李林均,陈萍,冉立,洪卫,常建英,付和宜..宫颈癌IMRT治疗中俯卧位Belly-board不同位置对靶区动度和剂量分布的影响[J].肿瘤防治研究,2011,38(4):416-419,4.
