河北医学2017，Vol.23Issue(2)：177-179,3.DOI:10.3969/j.issn.1006-6233.2017.02.001
中老年头颈部肿瘤行二程CT再计划对放射治疗剂量分布影响的临床研究
Clinical Study of Elderly Head and Neck Cancer line CT Plan Dose Distribution in Two-way Influence on Radiation
摘要
Abstract
Objective: To analyze the elderly head and neck cancer underwent CT treatment plans for two-way influence the dose distribution of radiation, in order to provide reference for the clinical. Methods:From March 2015 to March 2016, the elderly patients with head and neck cancer radiotherapy, were diag-nosed by pathology for head and neck cancer, IMRT, a total of 12 patients were collected:8 cases of nasopha-ryngeal carcinoma, 2 cases of tonsil carcinoma, 1 case of laryngeal carcinoma, 1 case of tongue cancer, a-mong them 11 cases of male patients and 1 female patient, a comparison process and after radiotherapy of the following indicators:target and organ at risk, parotid gland volume, parotid mass and body midline distance. Results:A two-way process and after radiotherapy, the left and right sides of the parotid gland volume were reduced after treatment (P<0.05), left and right sides of parotid mass and body midline distance were re-duced ( P<0.05);GTV/PTV D2, Cheng D50, D95, D98, D100 is less than a ride, D95, D98, GTV in the second D100, PTV D50, D95, D98, D100, HI, CI is a low ( P<0.05);two-way in bilateral parotid V26, mean dose and right parotid gland V26, the average dose was increased ( P <0.05) . Conclusion:The elderly head and neck cancer CT plan two-way radiation dose, V26, bilateral parotid mean dose of PTV and GTV, D95, D98 and D100 and PTV doses were significantly different. Clinical attention should be paid to the ana-tomical structure of patients with large differences, should be at the right time to modify the treatment plan to enhance the treatment effect of patients.关键词
头颈部肿瘤/放射治疗/二程放疗/剂量分布Key words
Head and neck neoplasms/Radiotherapy/Second radiotherapy/Dose distribution引用本文复制引用
汪谢嫒,张贵海,冯光勇,张莹莹,吴明娜,帅颐..中老年头颈部肿瘤行二程CT再计划对放射治疗剂量分布影响的临床研究[J].河北医学,2017,23(2):177-179,3.基金项目
国家自然科学基金,(编号:81260370) （编号:81260370）
