
浏览全部资源
扫码关注微信
重庆医科大学附属第一医院肿瘤科/重庆市卫生健康委员会免疫、炎症与肿瘤重点实验室,重庆 400016
王珊珊,Email:wss2023410345@163.com,研究方向:肿瘤放射治疗物理与技术。
宋延波,Email:songyanbo@cqmu.edu.cn。
收稿:2025-11-27,
修回:2026-02-08,
录用:2026-02-24,
纸质出版:2026-06-28
移动端阅览
王珊珊,宋延波.基于DVH和ICRU-89号报告评估宫颈癌放射治疗危及器官剂量的对比研究[J].重庆医科大学学报,2026,51(6):876-881.
Wang Shanshan,Song Yanbo.Doses to organs at risk in radiotherapy for cervical cancer based on dose-volume histogram and International Commission on Radiation Units and Measurements Report 89: a comparative study[J].Journal of Chongqing Medical University,2026,51(6):876-881.
王珊珊,宋延波.基于DVH和ICRU-89号报告评估宫颈癌放射治疗危及器官剂量的对比研究[J].重庆医科大学学报,2026,51(6):876-881. DOI: 10.13406/j.cnki.cyxb.004069.
Wang Shanshan,Song Yanbo.Doses to organs at risk in radiotherapy for cervical cancer based on dose-volume histogram and International Commission on Radiation Units and Measurements Report 89: a comparative study[J].Journal of Chongqing Medical University,2026,51(6):876-881. DOI: 10.13406/j.cnki.cyxb.004069.
目的
2
探讨宫颈癌患者外照射联合近距离放射治疗时,基于外照射阶段剂量-体积直方图(dose-volume histogram,DVH)获取的危及器官(organs at risk,OARs)(比如膀胱、直肠等)的剂量与国际辐射单位与测量委员会(International Commission on Radiation Units and Measurements,ICRU)89号报告推荐方法计算的OARs剂量进行比较,分析两者间的差异。
方法
2
回顾性纳入100例行外照射联合近距离放射治疗的宫颈癌患者,外照射剂量为45 Gy(1.8 Gy/次×25次,每日1次,每周5次)。从DVH上获取膀胱、直肠的D
2cc
、D
0.1cc
剂量并转换为2 Gy等效生物剂量(equivalent dose in 2 Gy fractions,EQD2),与ICRU剂量(ICRU-89号报告推荐方法计算OARs的EQD2剂量43.20 Gy)进行比较。
结果
2
DVH上膀胱D
2cc
、D
0.1cc
平均EQD2剂量分别为(45.97±0.59) Gy、(46.67±0.55) Gy,较ICRU剂量分别高出6.4%(
P
<
0.001)、8.0%(
P
<
0.001);直肠D
2cc
、D
0.1cc
平均EQD2剂量分别为(45.46±0.89) Gy、(46.34±0.73) Gy,比ICRU剂量分别高出5.2%(
P
<
0.001)、7.3%(
P
<
0.001)。
结论
2
宫颈癌外照射联合近距离放射治疗时,采用ICRU-89号报告推荐方法计算外照射阶段OARs的受照射剂量明显低于从DVH上获取的实际受照射剂量,从而低估宫颈癌外照射联合近距离治疗时OARs的总受照射剂量,可能增加放射性膀胱炎、直肠炎的发生风险。建议在宫颈癌外照射联合近距离放射治疗时,根据DVH实际剂量评估OARs的受照剂量。
Objective
2
To investigate the differences in the doses to organs at risk(OARs) (bladder and rectum) derived from dose-volume histogram (DVH) during external beam radiotherapy versus those calculated by the method recommended in International Commission on Radiation Units and Measurements(ICRU) Report 89 in patients with cervical cancer undergoing external beam radiotherapy combined with brachytherapy.
Methods
2
A retrospective analysis was performed for 100 patients with cervical cancer who received external beam radiotherapy combined with brachytherapy,with a dose of 45 Gy(25 fractions of 1.8 Gy,once daily,5 times per week) for external beam radiotherapy. The D
2cc
and D
0.1cc
doses of the bladder and the rectum were obtained from the DVH and were converted to equivalent dose in 2 Gy fractions(EQD2),which were then compared with the ICRU dose (i.e.,the EQD2 dose of 43.20 Gy for OARs calculated by the method recommended in ICRU Report 89).
Results
2
The mean EQD2 doses of bladder D
2cc
and D
0.1cc
obtained from the DVH were (45.97±0.59) Gy and (46.67±0.55) Gy,respectively,which were 6.4%(
P
<
0.001) and 8.0%(
P
<
0.001) higher than the ICRU dose;the mean EQD2 doses of rectum D
2cc
and D
0.1cc
obtained from the DVH were (45.46±0.89) Gy and (46.34±0.73) Gy,respectively,which were 5.2%(
P
<
0.001) and 7.3%(
P
<
0.001) higher than the ICRU dose.
Conclusion
2
For patients with cervical cancer undergoing external beam radiotherapy combined with brachytherapy,the doses to OARs calculated using the method recommended in ICRU Report 89 during external beam radiotherapy are significantly lower than the actual doses derived from DVH,thereby underestimating the total doses to OARs,which may increase the incidence rates of radiation-induced cystitis and proctitis. It is recommended to evaluate the doses to OARs based on the actual doses obtained from the DVH during external beam radiotherapy combined with brachytherapy for cervical cancer.
李晔雄 . 肿瘤放射治疗学 [M ] . 5版 . 北京 : 中国协和医科大学出版社 , 2018 : 1399 - 1403 .
Li YX . Radiation oncology [M ] . 5th ed . Beijing : Peking Union Medical College Press , 2018 : 1399 - 1403 .
中华医学会放射肿瘤治疗学分会 , 中国医师协会放射肿瘤治疗医师分会 . 宫颈癌根治性放疗指南(2025版) [J ] . 中华放射肿瘤学杂志 , 2025 , 34 ( 10 ): 976 - 984 .
Radiation Oncology Branch of Chinese Medical Association , Radiation Oncology Physicians Branch of Chinese Medical Doctor Association . Guideline for definitive radiotherapy of cervical cancer(2025 edition) [J ] . Chin J Radiat Oncol , 2025 , 34 ( 10 ): 976 - 984 .
Nascimento NPG , Gally TB , Borges GF , et al . Systematic review of circulating MICRORNAS as biomarkers of cervical carcinogenesis [J ] . BMC Cancer , 2022 , 22 ( 1 ): 862 .
Theophanous S , Samuel R , Lilley J , et al . Prognostic factors for patients with anal cancer treated with conformal radiotherapy-a systematic review [J ] . BMC Cancer , 2022 , 22 ( 1 ): 607 .
Prescribing,Recording,and Reporting Brachytherapy for Cancer of the Cervix [J ] . J ICRU , 2013 , 13 ( 1/2 ): 169 - 174 .
Grover S , Ning MS , Bale M , et al . Chemoradiation versus radiation alone in stage ⅢB cervical cancer patients with or without human immunodeficiency virus [J ] . Int J Gynecol Cancer , 2021 , 31 ( 9 ): 1220 - 1227 .
Murofushi KN , Tanaka R , Ohkawa A , et al . Re-irradiation with interstitial brachytherapy in uterine cancer patients with vaginal recurrence after post-operative pelvic irradiation [J ] . J Contemp Brachytherapy , 2022 , 14 ( 1 ): 60 - 65 .
Wang Y , Wang G , Wei LH , et al . Neoadjuvant chemotherapy for locally advanced cervical cancer reduces surgical risks and lymph-vascular space involvement [J ] . Chin J Cancer , 2011 , 30 ( 9 ): 645 - 654 .
You X , Hou FY . Clinical efficacy of image-guided radiation therapy for cervical cancer and its impact on patients' serum tumor markers and KPS scores [J ] . J Oncol , 2022 , 2022 : 8536554 .
Gelover E , Katherine C , Mart C , et al . Patient’s specific integration of OAR doses(D2 cc) from EBRT and 3D image-guided brachytherapy for cervical cancer [J ] . J Appl Clin Med Phys , 2018 , 19 ( 2 ): 83 - 92 .
Kim H , Huq MS , Houser C , et al . Mapping of dose distribution from IMRT onto MRI-guided high dose rate brachytherapy using deformable image registration for cervical cancer treatments: preliminary study with commercially available software [J ] . J Contemp Brachytherapy , 2014 , 6 ( 2 ): 178 - 184 .
Kim H , Lee YC , Benedict SH , et al . Dose summation strategies for external beam radiation therapy and brachytherapy in gynecologic malignancy: a review from the NRG oncology and NCTN medical physics subcommittees [J ] . Int J Radiat Oncol Biol Phys , 2021 , 111 ( 4 ): 999 - 1010 .
Hande V , Chopra S , Kalra B , et al . Point-a vs . volume-based brachytherapy for the treatment of cervix cancer:a meta-analysis [J ] . Radiother Oncol , 2022 , 170 : 70 - 78 .
Romano KD , Hill C , Trifiletti DM , et al . High dose-rate tandem and ovoid brachytherapy in cervical cancer: dosimetric predictors of adverse events [J ] . Radiat Oncol , 2018 , 13 ( 1 ): 129 .
Douvara A , Kollaros N , Patatoukas G , et al . Single- versus multi-computed tomography simulation for high-dose-rate postoperative gynecological intracavitary brachytherapy [J ] . J Med Phys , 2024 , 49 ( 1 ): 6 - 11 .
Pötter R , Tanderup K , Kirisits C , et al . The embrace ii study:The outcome and prospect of two decades of evolution within the gec-estro gyn working group and the embrace studies [J ] . Clin Transl Radiat Oncol , 2018 , 9 : 48 - 60 .
Vinod SK , Caldwell K , Lau A , et al . A comparison of ICRU point doses and volumetric doses of organs at risk(OARs) in brachytherapy for cervical cancer [J ] . J Med Imaging Radiat Oncol , 2011 , 55 ( 3 ): 304 - 310 .
Mehta V , Gupta P , Gothwal RS , et al . Comparative study of dose volume parameters in 2-dimensional radiography and 3-dimensional computed tomography based high dose rate intracavitary brachytherapy in cervical cancer: a prospective study [J ] . Asian Pac J Cancer Care , 2022 , 7 ( 3 ): 509 - 514 .
Kamrava M , Leung E , Bachand F , et al . GEC-ESTRO (ACROP)-ABS-CBG consensus brachytherapy target definition guidelines for recurrent endometrial and cervical tumors in the vagina [J ] . Int J Radiat Oncol Biol Phys , 2023 , 115 ( 3 ): 654 - 663 .
Mahantshetty U , Poetter R , Beriwal S , et al . IBS-GEC ESTRO-ABS recommendations for CT based contouring in image guided adaptive brachytherapy for cervical cancer [J ] . Radiother Oncol , 2021 , 160 : 273 - 284 .
Chino J , Erickson B , Gaffney D , et al . The American Brachytherapy Society (ABS) consensus guidance for hybrid intracavitary interstitial brachytherapy for locally advanced cervical cancer [J ] . Brachytherapy , 2025 , 24 ( 4 ): 463 - 478 .
Fu Q , Chen XY , Liu YX , et al . Improvement of accumulated dose distribution in combined cervical cancer radiotherapy with deep learning-based dose prediction [J ] . Front Oncol , 2024 , 14 : 1407016 .
Pötter R , Tanderup K , Schmid MP , et al . MRI-guided adaptive brachytherapy in locally advanced cervical cancer(EMBRACE-I):a multicentre prospective cohort study [J ] . Lancet Oncol , 2021 , 22 ( 4 ): 538 - 547 .
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621