中医临床研究
中醫臨床研究
중의림상연구
CLINICAL JOURNAL OF CHINESE MEDICINE
2014年
27期
139-141
,共3页
图像引导%宫颈癌%自适应调强%放疗
圖像引導%宮頸癌%自適應調彊%放療
도상인도%궁경암%자괄응조강%방료
Image-guided%Cervical cancer%Adaptive radiation therapy of intensity-modulated radiation%Radiation therapy
目的：研究宫颈癌自适应调强放射治疗中的摆位误差对靶区和器官剂量变化影响。方法：选取本院自2012年3月～2014年3月间收治的40例自适应调强放射治疗宫颈癌患者，采用资料回顾性分析，分别采集三组首次摆位误差、摆位误差纠正后以及治疗后的CT图像，对X、Y、Z方向的偏移误差进行计算，分析摆位误差对靶区和器官剂量分布影响。结果：经回顾性CT诊断分析，纠正后摆位误差与首次系统随机摆位误差之间差异显著（P<0.05），具有统计学意义；治疗后摆位误差与纠正后摆位误差比较差异不显著（P>0.05），无统计学意义。由于摆位误差造成宫颈癌原发瘤平均剂量变化为-2.57%～3.56%，膀胱平均剂量变化为-12.27%～3.78%，股骨头平均剂量变化为-7.04%～8.45%，直肠平均剂量变化范围为-10.52%～12.82%，小肠平均剂量变化范围为-3.07%～15.33%。结论：采用图像引导技术对于宫颈癌患者进行摆位误差纠正，可引起靶区和器官剂量变化，采用图像引导技术可以使得靶区以及周围正常组织器官剂量分布更加准确，有效提升放疗精度，从而提升放疗质量。
目的：研究宮頸癌自適應調彊放射治療中的襬位誤差對靶區和器官劑量變化影響。方法：選取本院自2012年3月～2014年3月間收治的40例自適應調彊放射治療宮頸癌患者，採用資料迴顧性分析，分彆採集三組首次襬位誤差、襬位誤差糾正後以及治療後的CT圖像，對X、Y、Z方嚮的偏移誤差進行計算，分析襬位誤差對靶區和器官劑量分佈影響。結果：經迴顧性CT診斷分析，糾正後襬位誤差與首次繫統隨機襬位誤差之間差異顯著（P<0.05），具有統計學意義；治療後襬位誤差與糾正後襬位誤差比較差異不顯著（P>0.05），無統計學意義。由于襬位誤差造成宮頸癌原髮瘤平均劑量變化為-2.57%～3.56%，膀胱平均劑量變化為-12.27%～3.78%，股骨頭平均劑量變化為-7.04%～8.45%，直腸平均劑量變化範圍為-10.52%～12.82%，小腸平均劑量變化範圍為-3.07%～15.33%。結論：採用圖像引導技術對于宮頸癌患者進行襬位誤差糾正，可引起靶區和器官劑量變化，採用圖像引導技術可以使得靶區以及週圍正常組織器官劑量分佈更加準確，有效提升放療精度，從而提升放療質量。
목적：연구궁경암자괄응조강방사치료중적파위오차대파구화기관제량변화영향。방법：선취본원자2012년3월～2014년3월간수치적40례자괄응조강방사치료궁경암환자，채용자료회고성분석，분별채집삼조수차파위오차、파위오차규정후이급치료후적CT도상，대X、Y、Z방향적편이오차진행계산，분석파위오차대파구화기관제량분포영향。결과：경회고성CT진단분석，규정후파위오차여수차계통수궤파위오차지간차이현저（P<0.05），구유통계학의의；치료후파위오차여규정후파위오차비교차이불현저（P>0.05），무통계학의의。유우파위오차조성궁경암원발류평균제량변화위-2.57%～3.56%，방광평균제량변화위-12.27%～3.78%，고골두평균제량변화위-7.04%～8.45%，직장평균제량변화범위위-10.52%～12.82%，소장평균제량변화범위위-3.07%～15.33%。결론：채용도상인도기술대우궁경암환자진행파위오차규정，가인기파구화기관제량변화，채용도상인도기술가이사득파구이급주위정상조직기관제량분포경가준학，유효제승방료정도，종이제승방료질량。
To study the influence of setup error in adaptive radiation therapy of intensity-modulated radiation on dosage changes of target region and organs. Method: 40 patients with adaptive radiation therapy of intensity-modulated radiation admitted by our hospital from March 2021 to March 2014 were selected as study objects. The influence of setup error influence of setup error were analyzed by the calculation of set errors in x, y, z directions on the CT pictures. The CT pictures were taken respectively at the time when the error firstly showed, after the error was corrected and after the treatment. Result:From the retrospective analysis of the CT diagnosis, it can be found that the setup error after correction was significantly different from the first systematic random setup error (P<0.05), which was statistically significant. The setup error after treatment was not significantly different from the setup error after correction (P>0.05),which was not statistically significant. The change range of average dosage of primary tumor caused by setup error was -2.57% to 3.56%, the bladder-12.27%to 3.78%, the formal head-7.04%to 8.45%, the rectum-10.52%to 12.82%, the small intestine-3.07%to 15.33%. Conclusion:Correcting the setup error of cervical cancer patients by the image-guided technique can cause the dosage change of the target region and organs. The image-guided technique can make the dosage distribution of target regions and organs around the target region become more accurate. It can increase the accuracy and quality of radiation.
