[1]孙 甫,兰翠茹,熊卫平,等.铅门跟随技术对食管癌调强放疗计划质控的影响[J].医学信息,2022,35(04):133-136.[doi:10.3969/j.issn.1006-1959.2022.04.034]
　SUN Fu,LAN Cui-ru,XIONG Wei-ping,et al.The Impact of Jaw Tracking Technique on Plan Quality Assurance of Intensity-modulatedRadiotherapy for esophageal cancer[J].Medical Information,2022,35(04):133-136.[doi:10.3969/j.issn.1006-1959.2022.04.034]
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铅门跟随技术对食管癌调强放疗计划质控的影响()
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医学信息[ISSN:1006-1959/CN:61-1278/R]

卷:
35卷
期数:
2022年04期
页码:
133-136
栏目:
临床研究
出版日期:
2022-02-15

文章信息/Info

Title:
The Impact of Jaw Tracking Technique on Plan Quality Assurance of Intensity-modulatedRadiotherapy for esophageal cancer
文章编号:
1006-1959（2022）04-0133-04
作者:
孙 甫1; 2; 兰翠茹1; 2; 熊卫平1; 2; 李 丛3; 吴府容3
1.重庆市江津区肿瘤医院肿瘤科，重庆 402289；2.重庆市江津区第二人民医院肿瘤科，重庆 402289；3.重庆大学附属肿瘤医院肿瘤放射治疗中心，重庆 400030
Author(s):
SUN Fu1; 2; LAN Cui-ru1; 2; XIONG Wei-ping1; 2; LI Cong3; WU Fu-rong3
1.Department of Oncology,the Cancer Hospital of Jiangjin District,Chongqin 402289,China;2.Department of Oncology,the Second People’s Hospital of Jiangjin District,Chongqin 402289,China;3.Department of Radiation Oncology,Chongqing University Cancer Hospi
关键词:
食管癌; 调强放疗; 放射性肺炎; 计划质控
Keywords:
Esophageal cancer; Intensity-modulated radiotherapy; Radiation pneumonitis; Plan quality assurance
分类号:
R735.1；R811.1
DOI:
10.3969/j.issn.1006-1959.2022.04.034
文献标志码:
A
摘要:
目的 研究铅门自动跟随技术对食管癌调强放疗计划的质控效果以及对放射性肺炎剂量体积指标的影响。方法 选择我院2019年9月-2020年12月收治的胸中段食管癌患者20例，分别采用铅门跟随技术和铅门固定技术对患者的放疗计划进行重新设计，根据患者的放疗计划将其分为铅门跟随技术组和铅门固定技术组，制定两种技术条件下的治疗计划，比较两组PTV、心脏、脊髓、肺及肺相关指标（V5、V10、V20、V30和V40）的剂量曲线，比较两组计划的靶区、危及器官和虚拟器官的γ通过率。结果 两组PTV、心脏、脊髓、肺及肺相关指标（V5、V10、V20、V30和V40）的剂量曲线基本一致；铅门跟随技术组中PTV和肺的γ通过率比铅门固定技术组中分别小0.55%和0.05%，铅门跟随技术组中虚拟器官V5、V10、V20、V30和V40，Spared的γ通过率比铅门固定技术组中分别小0.04%、0.04%、0.09%、0.13%和0.09%，但差异均无统计学意义（P＞0.05）；铅门跟随技术组中心脏的γ通过率比铅门固定技术组的大0.09%，但差异无统计学意义（P＞0.05）。结论 铅门跟随技术对食管癌调强放疗的计划质控和放射性肺炎剂量体积指标无明显影响，两方法均可用于临床治疗。
Abstract:
Objective To study the quality control effect of jaw tracking technique on esophageal cancer intensity modulated radiotherapy plan and its effect on radiation pneumonitis dose volume index.Methods A total of 20 patients with middle thoracic esophageal cancer admitted to our hospital from September 2019 to December 2020 were selected, and the radiotherapy plans of the patients were redesigned by using the jaw tracking technique and the fixed jaw technique, respectively. According to the radiotherapy plans of the patients, they were divided into the jaw tracking technique group and the fixed jaw technique group, and the treatment plans under the two technical conditions were formulated. The dose curves of PTV, heart, spinal cord, lung and lung-related indicators (V5, V10, V20, V30 and V40) in the two groups were compared, and the γ pass rates of target areas, organs at risk and virtual organs in the two groups were compared.Results The dose curves of PTV, heart, spinal cord, lung and lung related indexes (V5, V10, V20, V30 and V40) in the two groups were basically the same.The values of γ passing rates of PTV and lungs were 0.55% and 0.05% in jaw tracking technique group, which were lower than those in fixed jaw technique group. The rates calculated for virtual organs V5, V10, V20, V30 and V40,spared were 0.04%、0.04%、0.09%、0.13% and 0.09% lower in jaw tracking technique group than that in the relative rates calculated with fixed jaw technique group, respectively, but the difference was not statistically significant (P>0.05). The γ passing rates of heart was 0.09% higher with jaw tracking technique group than that with fixed jaw technique group, but the difference was not statistically significant (P>0.05).Conclusion Jaw tracking technique had no significant impact on the plan quality assurance and dosimetric/volumetric factors associated with radiation pneumonitis in intensity-modulated radiotherapy for esophageal cancer, both methods can be used for clinical treatment.

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更新日期/Last Update: 1900-01-01