中国实用神经疾病杂志
中國實用神經疾病雜誌
중국실용신경질병잡지
CHINESE JOURNAL OF PRACTICAL NERVOUS DISEASES
2014年
12期
5-7
,共3页
路娜%王雅棣%姚波%陈点点%刘清智
路娜%王雅棣%姚波%陳點點%劉清智
로나%왕아체%요파%진점점%류청지
脑转移癌%螺旋断层放射治疗%全脑照射%吸收剂量
腦轉移癌%螺鏇斷層放射治療%全腦照射%吸收劑量
뇌전이암%라선단층방사치료%전뇌조사%흡수제량
Brain metastases%Helical Tomotherapy%Whole brain adiotherapy%Absorbed dose
目的:探讨脑转移癌螺旋断层放射治疗(helical tomotherapy ,HT)行全脑放疗联合同步推量技术的剂量学特性及疗效。方法回顾性分析20例行螺旋断层放疗的脑转移患者资料,给予全脑(PT Vw b )40 Gy/20 F ,同时局部转移灶(pGTV)加量至60 Gy/20 F ,5次/周。分别对靶区的均匀性指数(HI)、不均匀性指数(heterogeneity index ,UI)和正常器官受照的最大剂量及平均剂量进行评价,并采用RTOG/EORTC标准评价急性反应,参照RECIST 1.0版实体瘤评价标准评价疗效。结果所有患者的Tomotherapy计划均有较好的靶区处方剂量分布、适形度和均匀性,危及器官受照射剂量均达到处方剂量要求。20例患者均顺利完成放疗,局部控制率95%,1 a生存率60%。放疗后K PS评分较放疗前明显提高,差异有统计学意义( P<0.05)。主要急性不良反应为脑水肿、乏力、脱发、听力下降、记忆力轻度减退,1例患者出现Ⅲ~Ⅳ级神经系统不良反应。结论螺旋断层放疗行全脑放疗联合同步推量技术临床可行,适用于脑转移癌放射治疗。
目的:探討腦轉移癌螺鏇斷層放射治療(helical tomotherapy ,HT)行全腦放療聯閤同步推量技術的劑量學特性及療效。方法迴顧性分析20例行螺鏇斷層放療的腦轉移患者資料,給予全腦(PT Vw b )40 Gy/20 F ,同時跼部轉移竈(pGTV)加量至60 Gy/20 F ,5次/週。分彆對靶區的均勻性指數(HI)、不均勻性指數(heterogeneity index ,UI)和正常器官受照的最大劑量及平均劑量進行評價,併採用RTOG/EORTC標準評價急性反應,參照RECIST 1.0版實體瘤評價標準評價療效。結果所有患者的Tomotherapy計劃均有較好的靶區處方劑量分佈、適形度和均勻性,危及器官受照射劑量均達到處方劑量要求。20例患者均順利完成放療,跼部控製率95%,1 a生存率60%。放療後K PS評分較放療前明顯提高,差異有統計學意義( P<0.05)。主要急性不良反應為腦水腫、乏力、脫髮、聽力下降、記憶力輕度減退,1例患者齣現Ⅲ~Ⅳ級神經繫統不良反應。結論螺鏇斷層放療行全腦放療聯閤同步推量技術臨床可行,適用于腦轉移癌放射治療。
목적:탐토뇌전이암라선단층방사치료(helical tomotherapy ,HT)행전뇌방료연합동보추량기술적제량학특성급료효。방법회고성분석20례행라선단층방료적뇌전이환자자료,급여전뇌(PT Vw b )40 Gy/20 F ,동시국부전이조(pGTV)가량지60 Gy/20 F ,5차/주。분별대파구적균균성지수(HI)、불균균성지수(heterogeneity index ,UI)화정상기관수조적최대제량급평균제량진행평개,병채용RTOG/EORTC표준평개급성반응,삼조RECIST 1.0판실체류평개표준평개료효。결과소유환자적Tomotherapy계화균유교호적파구처방제량분포、괄형도화균균성,위급기관수조사제량균체도처방제량요구。20례환자균순리완성방료,국부공제솔95%,1 a생존솔60%。방료후K PS평분교방료전명현제고,차이유통계학의의( P<0.05)。주요급성불량반응위뇌수종、핍력、탈발、은력하강、기억력경도감퇴,1례환자출현Ⅲ~Ⅳ급신경계통불량반응。결론라선단층방료행전뇌방료연합동보추량기술림상가행,괄용우뇌전이암방사치료。
Objective To evaluate the dosimetric characteristics and the short term effect of Helical Tomotherapy for brain metastases by whole brain radiotherapy combined with simultaneous integrated boost.Methods 20 patients with brain metasta-ses were chosen for retrospective analysis.The prescribed whole brain (PTVwb) doses were 40 Gy in 20 fractions ,while doses to brain metastases(pGTV) were simultaneously boosted to 60 Gy.Plans were evaluated regarding the dose coverage of targets , dose volume histograph ,and other dosimetric index.Results The dose distribution ,conformity and uniformity of Tomotherapy plan were acceptable.The local control rates of brain metastases were 95% ,the one year survival rate was 60%.The KPS scores were significantly different from that of per-treatment.The main toxicity included cerebral edema ,asthenia ,alopecia ,decreased hearing and memory.Conclusion Whole brain radiotherapy combined with simultaneous integrated boost-tomotherapy has bet-ter dosimetric characteristics and safe in clinics ,and can be used in radiotherapy for brain metastases.