国际医药卫生导报
國際醫藥衛生導報
국제의약위생도보
INTERNATIONAL MEDICINE & HEALTH GUIDANCE NEWS
2012年
5期
623-625
,共3页
鼻咽肿瘤%常规外照射%适形放疗%摆位误差
鼻嚥腫瘤%常規外照射%適形放療%襬位誤差
비인종류%상규외조사%괄형방료%파위오차
Nasopharyngeal carcinoma%Conventional radiotherapy%Three-dimensional conformal radiatherapy%Setup errors
目的 通过鼻咽癌常规放疗与适形放疗摆位误差的比较,找出摆位时存在的问题,并找出解决方法.方法 以进行放射治疗的40例鼻咽癌患者为对象,20例患者接受常规外照射,另外20例行适形放疗,对其摆位误差进行分析.结果 40例患者共拍摄120张射野验证片.常规放疗组摆位误差X轴(3.95±2.10) mm、Y轴(3.50±2.03) mm和Z轴(3.02±2.10) mm大于适形放疗组的X轴(1.78±1.03) mm、Y轴(1.53±0.92) mm和Z轴(1.60±1.11) mm.结论 通过严格的质量控制和采用适形放疗可以减少摆位误差,有效地提高摆位的重复性.
目的 通過鼻嚥癌常規放療與適形放療襬位誤差的比較,找齣襬位時存在的問題,併找齣解決方法.方法 以進行放射治療的40例鼻嚥癌患者為對象,20例患者接受常規外照射,另外20例行適形放療,對其襬位誤差進行分析.結果 40例患者共拍攝120張射野驗證片.常規放療組襬位誤差X軸(3.95±2.10) mm、Y軸(3.50±2.03) mm和Z軸(3.02±2.10) mm大于適形放療組的X軸(1.78±1.03) mm、Y軸(1.53±0.92) mm和Z軸(1.60±1.11) mm.結論 通過嚴格的質量控製和採用適形放療可以減少襬位誤差,有效地提高襬位的重複性.
목적 통과비인암상규방료여괄형방료파위오차적비교,조출파위시존재적문제,병조출해결방법.방법 이진행방사치료적40례비인암환자위대상,20례환자접수상규외조사,령외20례행괄형방료,대기파위오차진행분석.결과 40례환자공박섭120장사야험증편.상규방료조파위오차X축(3.95±2.10) mm、Y축(3.50±2.03) mm화Z축(3.02±2.10) mm대우괄형방료조적X축(1.78±1.03) mm、Y축(1.53±0.92) mm화Z축(1.60±1.11) mm.결론 통과엄격적질량공제화채용괄형방료가이감소파위오차,유효지제고파위적중복성.
Objective To find and solve the setup problem by comparing of setup error between conventional radiotherapy and three-dimensional conformal radiatherapy for nasopharyngeal carcinoma ( NPC ).Methods 40 patients with NPC were assigned to receive conventional radiotherapy ( 20 patients ) or 3D conformal radiatherapy ( 20 patients ).The setup errors of the two therapies were analyzed.Results One hundred and twenty films were obtained from all the 40 patients.The setup errors of conventional radiotherapy were significantly larger than those of 3D conformal radiatherapy in X,Y,and Z axis direction (3.95 ± 2.10mm,3.50 ± 2.03 mm,and3.02 ± 2.10mmvs.1.78 ± 1.03 mm, 1.53 ± 0.92mm, and 1.60 ± 1.11 mm ).Gonclusions Setup errors can be reduced by strict quality control and application of 3D conformal radiatherapy.
