子宫颈癌放射治疗摆位技术精确度的研究
|
摘要
目的比较子宫颈癌放射治疗的三种不同固定方式(真空袋固定、水解塑料体模固定与无任何固定),对比其头尾方向(C-C)、前后方向(A-P)和左右方向(L-R)上的治疗中心点的偏移误差,探讨不同固定方式的精确度。方法三种不同固定方式患者各12例,用模拟机软件中的标尺测量每例患者放疗前治疗中心点三个方向的偏移误差。结果真空袋固定方式治疗中心点偏移误差最小,次数最少;水解塑料体模固定方式偏移误差较大,次数较多;无任何固定方式偏移误差最大,次数最多(P<0.01)。结论真空袋固定是一种精确度最高的放射治疗方式。
Objective To compare the offset errors of treatment centers in directions of cranial-caudal, anterior-posterior and left-right of three immobilization methods in cervical cancer patients in radiation therapy(vacuum bag immobilization, hydrolysis plastic phantom immobilization, no immobilization), and to explore the precisions of different immobilizations. Methods The offset errors of treatment centers in three directions of three immobilization methods were measured by ruler in simulator software. Results There were minimum offset errors and least times in vacuum bag immobilization, more offset errors and more times in thermoplastic body model immobilization, and maximum offset errors and most times in no immobilization(P <0.01). Conclusions Vacuum bag immobilization has the highest accuracy in radiation therapy.
Objective To compare the offset errors of treatment centers in directions of cranial-caudal, anterior-posterior and left-right of three immobilization methods in cervical cancer patients in radiation therapy(vacuum bag immobilization, hydrolysis plastic phantom immobilization, no immobilization), and to explore the precisions of different immobilizations. Methods The offset errors of treatment centers in three directions of three immobilization methods were measured by ruler in simulator software. Results There were minimum offset errors and least times in vacuum bag immobilization, more offset errors and more times in thermoplastic body model immobilization, and maximum offset errors and most times in no immobilization(P <0.01). Conclusions Vacuum bag immobilization has the highest accuracy in radiation therapy.
引文
[1]胡逸民,杨定宇.肿瘤放射治疗技术[M].北京:北京医科大学中国协和医科大学联合出版社,1999:245.
[2]胡逸民.肿瘤放射物理学[M].北京:原子能出版社,1999:594.
[3]Intensity Modulated Radiation Therapy Collaborative Working Group.Intensity-modulated radiotherapy:current status and issues of interest[J].Int J Radiat Oncol Biol Phys,2001,51(4):880-914.
[4]于国瑞,俞高志,卫如琪,等.8,056例宫颈癌放疗疗效比较和北京型阴道容器的临床应用[J].肿瘤防治研究,1978,6(3):36-42.
[5]马芳孝,汤慧,钟毓斌.宫颈癌的腔内兼体外X线治疗1,198例总结[J].中华放射学杂志,1979,13(2):108-112.
[6]中国医学科学院日坛医院妇科.2131例子宫颈癌腔内及体外照射的总结:远期疗效和治疗方法的讨论[J].肿瘤防治研究,1976,4(3):33-39,82.
[7]西安医学院附属一院肿瘤科.1330例宫颈癌放射治疗疗效分析[J].肿瘤防治研究,1976,4(3):43-46.
[8]孙建衡,曾绵才,徐见道.单纯钴60旋转和钟摆照射治疗晚期宫颈癌的探讨[J].天津医药杂志:肿瘤附刊,1966,4(1):17-20.
[9]Kottmeier HL,Gray MJ.Rectal and bladder injuries in relation to radiation dosage in carcinoma of the cervix.A 5 year follow-up[J].Am J Obstet Gynecol,1961,82:74-82.
[10]Makowski EL,Mc Kelvey JL,Flight GW,et al.The results of irradiation therapy of carcinoma of the cervix[J].JAMA,1962,182:637-642.
[11]胡逸民,杨定宇.肿瘤放射治疗技术[M].北京:北京医科大学中国协和医科大学联合出版社,1999:124.
[2]胡逸民.肿瘤放射物理学[M].北京:原子能出版社,1999:594.
[3]Intensity Modulated Radiation Therapy Collaborative Working Group.Intensity-modulated radiotherapy:current status and issues of interest[J].Int J Radiat Oncol Biol Phys,2001,51(4):880-914.
[4]于国瑞,俞高志,卫如琪,等.8,056例宫颈癌放疗疗效比较和北京型阴道容器的临床应用[J].肿瘤防治研究,1978,6(3):36-42.
[5]马芳孝,汤慧,钟毓斌.宫颈癌的腔内兼体外X线治疗1,198例总结[J].中华放射学杂志,1979,13(2):108-112.
[6]中国医学科学院日坛医院妇科.2131例子宫颈癌腔内及体外照射的总结:远期疗效和治疗方法的讨论[J].肿瘤防治研究,1976,4(3):33-39,82.
[7]西安医学院附属一院肿瘤科.1330例宫颈癌放射治疗疗效分析[J].肿瘤防治研究,1976,4(3):43-46.
[8]孙建衡,曾绵才,徐见道.单纯钴60旋转和钟摆照射治疗晚期宫颈癌的探讨[J].天津医药杂志:肿瘤附刊,1966,4(1):17-20.
[9]Kottmeier HL,Gray MJ.Rectal and bladder injuries in relation to radiation dosage in carcinoma of the cervix.A 5 year follow-up[J].Am J Obstet Gynecol,1961,82:74-82.
[10]Makowski EL,Mc Kelvey JL,Flight GW,et al.The results of irradiation therapy of carcinoma of the cervix[J].JAMA,1962,182:637-642.
[11]胡逸民,杨定宇.肿瘤放射治疗技术[M].北京:北京医科大学中国协和医科大学联合出版社,1999:124.