| CBCT图像引导鼻咽癌调强放疗的精确性研究 |
| |
| 引用本文： | 岳丹,杨永净,赵玲,吴洪芬,卜明伟,赵继红,曹玲,马瑞,杨金磊,刘士新. CBCT图像引导鼻咽癌调强放疗的精确性研究[J]. 中华放射医学与防护杂志, 2016, 36(3): 211-215 |
| |
| 作者姓名： | 岳丹 杨永净 赵玲 吴洪芬 卜明伟 赵继红 曹玲 马瑞 杨金磊 刘士新 |
| |
| 作者单位： | 130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科,130012 长春, 吉林省肿瘤医院放疗一科 |
| |
| 基金项目： | 吉林省科技发展计划项目(20090450) |
| |
| 摘 要： | 目的 探讨千伏级锥形束CT(kV-CBCT)图像引导技术对鼻咽癌调强放疗精确性的影响。方法 331例鼻咽癌调强放疗患者每周行kV-CBCT校正扫描。计算系统误差(Σ)和随机误差(σ),摆位扩边按照Van Herk公式计算(2.5Σ+0.7σ)。结果 分析3 972个CBCT扫描图像。校正前在x、y、z方向上的平移误差和旋转误差分别为(0.95±0.79)、(1.04±0.66)、(1.14±0.63) mm 和1.32°±0.99°、1.45°±1.37°、1.25°±1.35°,校正后分别为(0.56±0.44)、(0.56±0.51)、(0.42±0.63) mm 和0.78°±0.76°、0.62°±0.85°、0.75°±0.64°。在x、y、z方向校正前的计划靶区扩边值(MPTV)分别为2.93、3.06和3.30 mm,校正后为1.71、1.76和1.49 mm。结论 应用kV-CBCT校正鼻咽癌调强放疗摆位中的线性和旋转误差明显缩小系统和随机误差,使得MPTV缩小到2 mm以内,提高了放疗的精确性。
|
| 关 键 词： | 图像引导放疗 千伏级锥形束CT 调强放疗 鼻咽癌 摆位误差 |
| 收稿时间： | 2015-09-29 |
Clinical feasibility and accuracy of image guidance with kilovoltage cone-beam computed tomography in nasopharyngeal carcinoma intensity-modulated radiotherapy |
| |
| Yue Dan,Yang Yongjing,Zhao Ling,Wu Hongfen,Pu Mingwei,Zhao Jihong,Cao Ling,Ma Rui,Yang Jinlei and Liu Shixin. Clinical feasibility and accuracy of image guidance with kilovoltage cone-beam computed tomography in nasopharyngeal carcinoma intensity-modulated radiotherapy[J]. Chinese Journal of Radiological Medicine and Protection, 2016, 36(3): 211-215 |
| |
| Authors: | Yue Dan Yang Yongjing Zhao Ling Wu Hongfen Pu Mingwei Zhao Jihong Cao Ling Ma Rui Yang Jinlei Liu Shixin |
| |
| Affiliation: | No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China,No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China and No. 1 Department of Radiation Oncology, Jilin Province Cancer Hospital, Changchun 130012, China |
| |
| Abstract: | |
| |
| Keywords: | Image guided radiation therapy (IGRT) Cone-beam computerized tomography (CBCT) Intensity-modulated radiotherapy (IMRT) Nasopharyngeal carcinoma (NPC) Setup errors |
|
| 点击此处可从《中华放射医学与防护杂志》浏览原始摘要信息 |
|
点击此处可从《中华放射医学与防护杂志》下载免费的PDF全文 |
|
