中华放射肿瘤学杂志
中華放射腫瘤學雜誌
중화방사종류학잡지
CHINESE JOURNAL OF RADIATION ONCOLOGY
2015年
2期
173-175
,共3页
张涛%肖光莉%吴钊平%朱向尚%王汉阳%龙慧娟%丘熹彬%曹亚兵
張濤%肖光莉%吳釗平%硃嚮尚%王漢暘%龍慧娟%丘熹彬%曹亞兵
장도%초광리%오쇠평%주향상%왕한양%룡혜연%구희빈%조아병
个体化口含牙胶%摆位误差%鼻咽肿瘤/放射疗法
箇體化口含牙膠%襬位誤差%鼻嚥腫瘤/放射療法
개체화구함아효%파위오차%비인종류/방사요법
Tailor-made mouth bite block%Setup error%Nasopharyngeal neoplasms/radiotherapy
目的 评估个体化口含牙胶辅助的定位方法保证鼻咽癌放疗摆位的精确性.方法 鼻咽癌放疗定位和摆位时,使用头颈肩热塑面罩固定体位,注意体表轮廓处的体膜成型,增加个体化口含牙胶辅助定位.放疗最初3次以及之后每周1次用OBI系统验证摆位误差.结果 全部病例的摆位误差在左右、上下、前后方向的平均值和标准偏差分别为-0.26、0.36、0.35 mm和0.97、1.16、1.11 mm,3个方向上摆位误差≤2 mm的概率分别为99.7%、98.0%、100%.结论 采用个体化口含牙胶辅助的定位方法可以保证鼻咽癌放疗摆位的精确性.
目的 評估箇體化口含牙膠輔助的定位方法保證鼻嚥癌放療襬位的精確性.方法 鼻嚥癌放療定位和襬位時,使用頭頸肩熱塑麵罩固定體位,註意體錶輪廓處的體膜成型,增加箇體化口含牙膠輔助定位.放療最初3次以及之後每週1次用OBI繫統驗證襬位誤差.結果 全部病例的襬位誤差在左右、上下、前後方嚮的平均值和標準偏差分彆為-0.26、0.36、0.35 mm和0.97、1.16、1.11 mm,3箇方嚮上襬位誤差≤2 mm的概率分彆為99.7%、98.0%、100%.結論 採用箇體化口含牙膠輔助的定位方法可以保證鼻嚥癌放療襬位的精確性.
목적 평고개체화구함아효보조적정위방법보증비인암방료파위적정학성.방법 비인암방료정위화파위시,사용두경견열소면조고정체위,주의체표륜곽처적체막성형,증가개체화구함아효보조정위.방료최초3차이급지후매주1차용OBI계통험증파위오차.결과 전부병례적파위오차재좌우、상하、전후방향적평균치화표준편차분별위-0.26、0.36、0.35 mm화0.97、1.16、1.11 mm,3개방향상파위오차≤2 mm적개솔분별위99.7%、98.0%、100%.결론 채용개체화구함아효보조적정위방법가이보증비인암방료파위적정학성.
Objective To evaluate the efficacy of tailor-made mouth bite block for auxiliary positioning in reducing setup errors during radiotherapy for nasopharyngeal carcinoma (NPC).Methods The NPC patient to be treated with radiotherapy was immobilized with a thermoplastic mask covering the head,neck,and shoulder,with the addition of a tailor-made mouth bite block to help positioning.The patient's position was verified by the On-Board Imager system for the first three times of radiotherapy and then once every week.Results The mean setup errors in left-right,superior-inferior,and anterior-posterior directions were-0.26,0.36,and 0.35 mm,respectively,and the standard deviations were 0.97,1.16,and 1.11 mm,respectively; the frequencies of setup error ≤ 2 mm in the three directions were 99.7%,98.0%,and 100%,respectively.Conclusion Tailor-made mouth bite block can help improve the positioning accuracy during radiotherapy for NPC.