1)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。
英文短句/例句
1.The Connection Between Positioning Error Threshold and Margin Creation摆位误差阈值与Margin生成的关系
2.Set-up errors in radiation therapy for pelvic tumor patients of different somatotypes不同体型盆腔肿瘤患者放疗摆位误差
3.Setup Error in Three-dimensional Conformal Radiotherapy of Thoracic Esophageal Carcinoma;胸段食管癌三维适形放射治疗摆位误差的研究
4.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
5.Clinical analysis of the setup errors in intensity modulate radiotherapy for tumor colli by cone beam CT锥形束CT对颈部肿瘤调强放疗摆位误差的探讨
6.Setup Error on X-Ray Universal Simulator in Intensity Modulated Radiation Therapy for Head and Neck Tumor应用模拟定位机分析头颈部肿瘤调强放疗的摆位误差
7.Using Radiopaque Fiducial Markers Embeded in Occlusal Splint to Measure Setup Error in Conformal Radiotherapy for Nasopharyngeal Carcinoma（牙合）内置标记点法测量鼻咽癌适形放射治疗的摆位误差
8.A Clinical Study of Real-time Correction of Setup Error in Nasopharyngeal Carcinoma (NPC) IMRT Using an Electronic Portal Imaging Device (EPID);应用电子射野影像系统实时纠正鼻咽癌调强放疗摆位误差的研究
9.Effect of the Setup Error on the Physics Dose for Nasopharyngeal Carcinoma in the Intensity Modulated Radiation Therapy;鼻咽癌调强放疗中的摆位误差对物理剂量学的影响
10.The Study of Dosimetry Effect of Setup Errors for Patients with Esophagus Carcinoma and Lung Carcinoma;食管癌及肺癌放疗中摆位误差对剂量学影响的研究
11.Preliminary Measurement of Intrafractional Setup Errors in IMRT Analyzed by Cone-Beam CT-Based锥形束CT测量调强放疗分次间摆位误差的初步研究
12.A Clinical Evaluation of Setup Errors of IMRT for Head and Neck Cancers Using Integrated KV Cone-beam CT on IGRT Unit应用IGRT机载千伏级锥形束CT研究头颈部肿瘤调强放疗的摆位误差
13.Factors Affecting Setup Errors in Three-Dimensional Conformal Radiotherapy of Thoracic Tumor胸部肿瘤三维适形放射治疗摆位误差影响因素研究
14.Dosimetry study of setup errors in intensity modulated radiation therapy for breast cancer conserving surgery乳腺癌保乳术后调强放疗摆位误差的剂量学研究
15.Study of 6-D setup error in IGRT on esophageal carcinoma食管癌图形引导的放射治疗(IGRT)6个自由度摆位误差研究
16.Positioning Errors Assessed with Kilovoltage Cone-Beam CT for Online Image-Guided Prostate Radiotherapy and Its Impact on Dose Escalation在线图像引导下前列腺癌三维适形调强放疗的摆位误差和相关剂量学研究
17.EPID for Set-up Errors Analysis and Quality Assurance of Radiotherapy in Head and Neck Cancer电子射野影像系统(EPID)在头颈部肿瘤放射治疗中的摆位误差分析及质量控制
18.A novel precision positioning table based on real-time yaw error compensation高速精密定位平台的偏摆误差实时补偿
相关短句/例句
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。
3)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。
4)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。
5)Random setup error随机摆位误差
6)swing error摆动误差
1.A new compensating method of swing error for land SINS is prposed to realize coarse alignment: by the acceleration information of accelerometer,the angle velocity relative to the earth that is output by gyroscope is mended.分析了在风吹或地面松软等情况下,车体摆动干扰的特点,提出了一种车载捷联惯导系统补偿摆动误差,实现粗对准的方法:利用加速度计输出信息修正陀螺信号,然后采用修正后的陀螺信息和加速度计的平均信息,实现初始粗对准。
延伸阅读
舰位误差舰位误差ship position error 海区、航行任务对舰位精度的要求，选用合适比例尺的海图，采用合理的定位方法，正确选择导航物标(陆标、天体、无线电导航台等)，认真测算，精心标绘，可减小随机误差；认真保养、精心维护各种航海仪器，保证其正常工作，可及时发现、准确消除和实时改正系统误差。在不存在粗差和大的系统误差条件下，残存的小系统误差，通常作为随机误差处理。此时，舰位误差的大小用舰位标准差(均方误差)表示。各种观测舰位标准差一般为：陆标舰位和雷达舰位l～2链，其中三标两角舰位几十米；天文舰位l～2海里；罗兰一C舰位1—5链；奥米加舰位2～4海里；导肮星全球定位系统(Navstar—GPs)舰位和全球导航卫星系统(GLONASS)舰位30米左右，差分GPs舰位数米；舰艇惯性导航舰位约1海里／天。推算舰位的标准差一股为航程的2％～3％，有风流时稍大。舰位误差散布范围用舰位标准差椭圆、舰位标准差圆和舰位标准差平行四边形表示，概率分别为39．4％、63．2％一68_3％、46．6％。常以2倍舰位标准差作为极限误差，概率简单表示为95％。现代舰艇多装备有综合导航设备，采用计算机、现代控制、现代滤波等技术，可减小舰位误差，提高舰艇定位精度。 (高善民)iiQnwei wuchQ舰位误差(ship position error) 观测舰位或推算舰位与真舰位之间的误差。正确掌握和处理舰位误差，是舰艇航海安全、准时准点完成肮行任务和战斗航海勤务的重要保证。 舰位误差由观测误差、计算误差、作图误差和航海仪器误差等综合影响而产生。与舰艇航行环境、观测条件、定位手段、定位方法、测者技术水平等有关。舰位误差包括粗差、系统误差和随机误差(偶然误差)。大的粗差或系统误差，会产生大的舰位误差，若不能及时发现和正确处理，会危及舰艇航海安全，甚至造成灾难性的后果。舰艇航行中，须使用最新航海图书资料，在一切定位测算中，认真细致，准确正规，避免发生粗差；根据航行
