1.中山大学肿瘤防治中心放疗科//华南肿瘤学国家重点实验室//肿瘤医学协和创新中心, 广东 广州,510060
2.中山大学附属东华医院,广东 东莞,523120
苏灿森,学士,物理师,E-mail:540361617@qq.com
收稿:2021-02-02,
纸质出版:2021-05-20
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苏灿森,李云宝,孙文钊.常规调强放射治疗技术用于初诊Ⅳb期鼻咽癌骨转移的可行性研究[J].中山大学学报(医学科学版),2021,42(03):441-447.
SU Can-sen,LI Yun-bao,SUN Wen-zhao.The Feasibility Study of Using IMRT Technique for Newly Diagnosed Stage Ⅳb Nasopharyngeal Carcinomas with Bone Metastasis[J].Journal of Sun Yat-sen University(Medical Sciences),2021,42(03):441-447.
苏灿森,李云宝,孙文钊.常规调强放射治疗技术用于初诊Ⅳb期鼻咽癌骨转移的可行性研究[J].中山大学学报(医学科学版),2021,42(03):441-447. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2021.0115.
SU Can-sen,LI Yun-bao,SUN Wen-zhao.The Feasibility Study of Using IMRT Technique for Newly Diagnosed Stage Ⅳb Nasopharyngeal Carcinomas with Bone Metastasis[J].Journal of Sun Yat-sen University(Medical Sciences),2021,42(03):441-447. DOI: 10.13471/j.cnki.j.sun.yat-sen.univ(med.sci).2021.0115.
目的
2
研究评估常规调强放射治疗技术用于初诊Ⅳb期鼻咽癌骨转移的可行性。
方法
2
收集15例已经采取TOMO放射治疗的初诊Ⅳb期鼻咽癌骨转移患者的计划,按照相同的临床剂量学要求,在Eclipse治疗计划系统上对靶区设置固定野的常规IMRT计划,采用滑窗技术,其中对鼻咽部位靶区设置等分角度的9野调强,骨转移靶区设置7野或者9野调强,比较分析对应计划的靶区处方剂量覆盖率、高剂量、均匀指数和适形度指数,统计部分危险器官的关键剂量指标差异,以及表征计划运行效率的机器跳数(MU)与治疗时间差异等。对两组数据进行配对
t
检验分析。
结果
2
对于鼻咽部位的靶区两种计划处方剂量覆盖基本相当,IMRT计划在PTVnx部位的剂量均匀性较差且高剂量高于TOMO计划,而在骨转移部位IMRT的处方剂量对靶区覆盖率高于TOMO计划。对于重要的危险器官如脊髓和脑干,IMRT计划的D
1%
则高于TOMO计划,但双侧腮腺的平均剂量则低于TOMO计划,但所有被评估的危险器官的剂量学指标均在临床要求范围内。
结论
2
对于初诊Ⅳb期鼻咽癌骨转移放射治疗,常规IMRT技术可以提供与TOMO技术相当靶区剂量覆盖和正常器官的保护,对于基层无TOMO治疗机的放疗单位可以作为TOMO治疗技术的一种替代。
Objective
2
To investigate the feasibility of using Intensity-modulated radiotherapy (IMRT) for newly diagnosed stage Ⅳb nasopharyngeal carcinomas with bone metastasis.
Methods
2
Fifteen cases of stage Ⅳb nasopharyngeal carcinoma with bone metastasis which were delivered under the Tomotherapy (TOMO) were selected. Under the same prescription dose requirements and dose constraints in TOMO, the IMRT plan was designed on Eclipse treatment planning system. For the target of nasopharyngeal site, 9 fix-gantry angle beams were used, and 7 or 9 fix-gantry angle beams were for the site of bone metastasis. The dosimetric indexes for plan comparison included prescription dose coverage and high dose coverage of the targets, homogeneity index and conformal index in target volume, the key dosimetric index for organs at risk, the plan delivery efficiency indexes including the MU and plan delivery time. Data from the two groups were compared by paired
t
-test.
Results
2
To the gross targets of the nasopharyngeal site, both IMRT and TOMO plans had comparable dose coverage. But compared with TOMO plan, IMRT plan had a little worse performance in the dose uniformity and had a higher dose in targets. To the organs at risk, the D1% of spinal cord and brain stem in IMRT plan was higher than that in TOMO plan, but the average dose of parotids for IMRT plan was lower than that for TOMO plan. All the dosimetric indexes for plan evaluation were within the clinical dose tolerance.
Conclusions
2
For radiotherapy of newly diagnosed stage Ⅳb nasopharyngeal carcinomas with bone metastasis, the IMRT technique could provide adequate target dose coverage and normal organ sparing compared with helical tomotherapy plan. IMRT technique could be a feasible alternative to helical tomotherapy for this treatment.
罗彪 . 放射治疗在鼻咽癌骨转移中的临床应用进展 [J]. 右江医学 , 2017 , 14 ( 5 ): 615 - 617 .
Luo B . The clinical application progress of radiation therapy in nasopharyngeal carcinoma patients with bone metastases [J]. J Youjiang Med , 2017 , ( 14 ) 5 : 615 - 617 .
周洁瑕 . 鼻咽癌为何被称为"广东癌 "[J]. 家庭医药·快乐养生 , 2019 , ( 9 ): 75 .
Zhou JX . Why is nasopharyngeal cancer called “Cantonese cancer ”[J]. Home Med , 2019 , ( 9 ): 75 .
潘长穿 , 卢进 , 陈萍 , 等 . 1016例鼻咽癌远处转移患者的转移分层细化及其临床意义 [J]. 中华肿瘤杂志 , 2013 , 35 ( 8 ): 595 - 599 .
Pan CC , Lu J , Chen P , et al . Evaluation of the prognostic significance of refinement and stratification of distant metastasis status in 1016 cases of nasopharyngeal carcinoma [J]. J Chin Oncol , 2013 , 35 ( 8 ): 595 - 599 .
王成涛 , 曹卡加 , 谢国丰 , 等 . 初诊远处转移鼻咽癌临床预后因素分析 [J], 中华肿瘤防治杂志 , 2009 , 16 ( 6 ): 439 - 442 .
Wang CT , Cao KJ , Xie GF , et al . Analysis of clinical prognostic factors to newly diagnosed distant metastatic nasopharyngeal carcinoma [J]. J Chin Oncol Prev Treat , 2009 , 16 ( 6 ): 439 - 442 .
Cao X , Han Y , He L , et al . Risk subset of the survival for nasopharyngeal carcinoma patients with bone metastases: who will benefit from combined treatment [J]. Oral Oncol , 2011 , 47 ( 8 ): 747 - 752 .
王丹丹 , 李梅 , 杨智宁 , 等 . 68例首诊伴单纯骨转移鼻咽癌患者预后分析 [J]. 中华放射肿瘤学杂志 , 2017 , 26 ( 10 ): 1137 - 1140 .
Wang DD , Li M , Yang ZN , et al . Prognostic analysis of 68 patients with initially diagnosed bone-only metastatic nasopharyngeal carcinoma [J]. J Chin Radiat Oncol , 2017 , 26 ( 10 ): 1137 - 1140 .
张雷 . 脊柱转移癌局部根治性调强放疗的治疗方案比较 [D]. 新疆医科大学 , 2010 .
Zhang L . Comparison of IMRT local radical treatment options to spinal metastases [D]. Xin Jiang Med Univ , 2010 .
崔佳宁 . 脊柱转移瘤放射治疗进展 [J]. 癌症进展 , 2019 , 17 ( 1 ): 31 - 62 .
Cui JN . Advances in radiotherapy for spinal metastases [J]. Oncol Prog , 2019 17 ( 1 ): 31 - 62 .
庞金猛 . 探究螺旋断层放疗计划参数对放疗计划的影响 [D]. 湖南 : 南华大学 , 2020 .
Pang JM . Exploring the influence of parameters of tomotherapy on radiotherapy plan [D]. Hu Nan : South China Univ , 2020 .
杨美玲 , 黎静 , 李志强 , 等 . 螺旋断层放疗与常规放疗在全脑全脊髓照射中的剂量学比较 [J]. 临床肿瘤学杂志 , 2014 , 19 ( 8 ): 718 - 722 .
Yang ML , Li J , Li ZQ , et al . Dosimetric comparison between helical tomotherapy and conventional radiotherapy for craniospinal irradiation [J], Chin Clin Oncol , 2014 , 19 ( 8 ): 718 - 722 .
肖月 , 邱英鹏 , 史黎炜 , 等 . 螺旋断层放射治疗系统在我国公立医院应用现状分析 [J]. 中国医学装备 , 2020 , 17 ( 12 ): 14 - 18 .
Xiao Y , QIU YP , Shi LW , et al . Analysis of the application status of Tomotherapy system in public hospitals in my country [J]. Chin Med Equi , 2020 , 17 ( 12 ): 14 - 18 .
陈海雄 , 宋炳文 , 丁振华 . 三种调强放射治疗鼻咽癌布野方案的剂量学比较 [J]. 广东医学 , 2014 , 35 ( 11 ): 1673 - 1676 .
Chen HX, Song BW, Ding ZH, Dosimetric comparison of three radiotherapy plans for nasopharynx carcinoma [J]. J Guangdong Med , 2014 , 35 ( 11 ): 1673 - 1676 .
王翰 , 陈辉 , 熊源长 . 肿瘤骨转移疼痛管理进展 [J]. 中国疼痛医学杂志 , 2019 , 25 ( 11 ): 859 - 862 .
Wang H , Chen H , Xiong YC . The progress of pain management to the tumor bone metastasis [J], J Chin Pain Med , 2019 , 25 ( 11 ): 859 - 862 .
戴力扬 . 脊柱转移性肿瘤的诊断和治疗 [J]. 临床骨科杂志 , 1999 , 2 ( 2 ): 1 - 4 .
Dai LY . Diagnosis and treatment of metastatic neoplasms of the spine [J]. J Clin Orth , 1999 , 2 ( 2 ): 1 - 4 .
许鹏飞 , 郭灵 , 徐永腾 , 等 . 鼻咽癌放疗后放射性颈髓损伤的临床研究 [J]. 中华神经医学杂志 , 2014 , 13 ( 11 ): 1147 - 1153 .
Xu PF , Guo L , Xu YT , et al . Diagnosis and treatment of metastatic neoplasms of the spine [J]. J Clin Orth , 2014 , 13 ( 11 ): 1147 - 1153 .
史亦飞 . 浅析鼻咽癌放射治疗后遗症与防治 [J]. 养生保健指南 , 2018 , ( 13 ): 360 .
Shi YF . Analysis of the sequelae and prevention of radiotherapy for nasopharyngeal carcinoma [J]. Health Guide , 2018 , 13360 .
Han C , Chen YJ , Liu A . et al . Actual dose variation of parotid glands and spine cord for nasopharyngeal cancer patients during radiotherapy [J]. Int J Radiat Oncol Biol Phys , 2008 , 70 : 1256 - 1262 .
John PK , Alabert J . Van DK, Timothy ES, et al. Radiation Dose-Volume effects in the spinal cord[J]. Int J Radiation Oncology Biol Phys . 2010 ; 76 ( Suppl 3 ): S42 - S49 .
姚成云 , 王丽君 , 孔诚 , 等 . 鼻咽癌IMRT脑干损伤的剂量体积研究 [J]. 中华放射肿瘤学杂志 , 2017 , 26 ( 2 ): 128 - 132 .
Yao CY , Wang L , Kong C , et al . A dose volume analysis of brain stem injury after intensity-modulated radiotherapy in patients with nasopharyngeal carcinoma [J]. J Chin Radiat Oncol , 2017 , 26 ( 2 ): 128 - 132 .
范明新 , 戚元刚 , 张晴 , 等 . 鼻咽癌放疗早期涎腺DWI变化及其与放疗后口干程度相关性 [J]. 放射学实践 , 2019 , 34 ( 6 ): 614 - 618 .
Fan MX , Qi YG , Zhang Q . Correlation between the changes of ADC value of salivary glands at the beginning of radiotherapy and degree of xerostomia after radiotherapy in patients with nasopharyngeal carcinoma [J]. Radiolo Pract , 2019 , 34 ( 6 ): 614 - 618 .
王静 , 翟振宇 , 魏清 , 等 . 鼻咽癌调强放疗计划设计中有关误差的研究 [J]. 医学研究杂志 , 2005 , 34 ( 12 ): 17 - 20 .
Wang J , Zhai ZY , Wei Q , et al . Study on the Deviation in the Design of Intensity Modulated Radiation Therapy Plan for Nasopharyngeal Carcinoma [J]. Bull Med Res , 2005 , 34 ( 12 ): 17 - 20 .
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