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1)  set-up error/radiotherapy
摆位误差/放射治疗
2)  field position errors
射野摆位误差
1.
Objective: To investigate the variability of inter-observer and intra-observer when evaluating field position errors in patients with head and neck cancer.
方法:两队研究小组,分别由四名医师和四名技师组成,两组分别对6名头颈部肿瘤的患者,采用电子射野影像仪(electronic portalimaging device,EPID)拍摄验证片(electronic portal images,EPIs),在EPIs上勾画骨性标志,以放疗计划生成的数字重建图像(digitally reconstructed radiographs,DRRs)做为参考图像,定量分析不同观察研究人员之间和研究人员自身采用EPID确定头颈部肿瘤患者的射野摆位误差(field placement errors,FPEs)的差异性。
3)  setup error
摆位误差
1.
An analysis of setup error with on board imager for chest tumors treated with intensity modulated radiation therapy
应用OBI系统分析胸部肿瘤调强放疗的摆位误差
2.
Objective: To measure the setup error undergoing the radiation therapy for head-neck neoplasms,and to analyze the effect of the setup error on the physics dose of targets and peripheral organs at risk(OAR)for nasopharyngeal carcinoma(NPC)undergoing the intensity modulated radiation therapy (IMRT).
目的:测量头颈部肿瘤在放射治疗中的摆位误差,分析鼻咽癌(NPC)调强放射治疗(IMRT)中误差对靶区和危及器官物理剂量学的影响。
3.
AIM: To measure the setup error in the intensity modulated radiation therapy (IMRT) for head-neck neoplasms, and to analyze the margin between the clinical target volume (CTV) and planning target volume (PTV).
结果:在左右、头脚、腹背方向的摆位误差分别是(-0。
4)  Set-up errors
摆位误差
1.
Objective: To examine and analyze the set-up errors for patients with three dimensional conformal and Intensity Modulated Radiotherapy to calculate CTV referential safety margins of PTV.
目的:测定和分析三维适形及调强放疗的摆位误差,并依此计算CTV外扩PTV边界的大小。
2.
Conclusion:So this registration method can be applied for online estimation for set-up errors in clinical radiation.
目的:及时纠正放射治疗过程中患者的摆位误差,提高放射治疗效果。
5)  set-up error
摆位误差
1.
Feasibility study to apply EPID by trained therpistss in evaluation of set-up errors of pelvic irradiation;
技术员独立应用EPID对盆腔摆位误差监测的可行性
2.
Objective: To determine the magnitude of the set-up errors in precise radiotherapy for body tumors.
目的:确定体部肿瘤精确放疗时的摆位误差。
3.
[Purpose] To investigate the set-up error in intensity modulated radiotherapy (IMRT) with electric portal image device (EPID) in nasopharyngeal carcinoma (NPC).
[目的]用电子射野图像器件(EPID)拍摄的射野片研究调强放疗治疗鼻咽癌过程中的摆位误差。
6)  the radiotherapy suspends the position
放疗摆位
补充资料:放射性同位素治疗
指用放射性同位素进行的疾病治疗。放射性同位素有镭(ra)、钴60、铯137、铱192、金198、钽182、锶90。在对肿瘤的放射治疗中,主要是利用放射性同位素放射的β和γ射线,特别是γ射线。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条