肿瘤防治研究2025，Vol.52Issue(5)：400-404,5.DOI:10.3971/j.issn.1000-8578.2025.24.1084
脊柱骨转移放疗的摆位误差及影响因素分析
Setup Error and Its Influencing Factors in Radiotherapy for Spinal Metastasis
秦文华 1张涛 1冯鑫 1王增洲 1褚尚楠 2王宏 1吴诗雨 1陈诚 1郇福奎 1梁斌1
作者信息
- 1. 100021 北京,国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院北京协和医学院肿瘤医院放疗科
- 2. 100142 北京,北京大学肿瘤医院暨北京市肿瘤防治研究所放疗科,恶性肿瘤发病机制及转化研究教育部重点实验室
- 折叠
摘要
Abstract
Objective To investigate the setup error in patients with spinal bone metastasis who underwent radiotherapy under the guidance of kilovoltage cone-beam CT(KV-CBCT).Methods A total of 118 patients with spinal metastasis who underwent radiotherapy,including 17 cases of cervical spine,62 cases of thoracic spine,and 39 cases of lumbar spine,were collected.KV-CBCT scans were performed using the linear accelerators from Elekta and Varian's EDGE system.CBCT images were registered with reference CT images in the bone window mode.A total of 973 data were collected,and 3D linear errors were recorded.Results The patients with spinal bone metastasis were grouped by site,height,weight,and BMI.The P value of the patients grouped only by site was P<0.05,which was statistically significant.Conclusion When grouped by site in the 3D direction,the positioning effect of cervical spine is better than that of thoracic and lumbar spine.The positioning effect of the thoracic spine is better in the head and foot direction but worse in the left and right direction compared with that of the lumbar spine.Instead of extending or narrowing the margin according to the BMI of patients with spinal metastasis,the margin must be changed according to the site of spinal bone metastasis.关键词
锥形束CT/脊柱骨转移/放疗/摆位误差/影响因素/BMIKey words
Cone beam CT/Spinal bone metastasis/Radiotherapy/Setup error/Influencing factors/BMI分类
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秦文华,张涛,冯鑫,王增洲,褚尚楠,王宏,吴诗雨,陈诚,郇福奎,梁斌..脊柱骨转移放疗的摆位误差及影响因素分析[J].肿瘤防治研究,2025,52(5):400-404,5.
