Title3D打印个体化非共面模板辅助粒子植入时定位与复位误差研究
Other TitlesAnalysis of position errors of 3D printing individual non-coplanar template for radioactive seed implantation for malignant tumor
Authors姜玉良
李宾
吉喆
郭福新
孙海涛
范京红
李旭
张路静
王俊杰
Affiliation100191,北京大学第三医院肿瘤放疗科
郑州大学附属洛阳中心医院肿瘤放疗科,洛阳,471000
Keywords3D打印
模板
放射性粒子植入
误差
3D printing
Template
Radioactive seed implantation
Errors
Issue Date2016
Publisher中华放射医学与防护杂志
Citation中华放射医学与防护杂志. 2016, 36(12), 913-916.
Abstract目的 探讨3D打印个体化非共面模板(简称3D模板)辅助放射性125I粒子植入治疗中定位和复位时的误差.方法 选取2015-2016年收治的41例3D模板辅助粒子植入治疗患者.术前2日行CT扫描模拟定位.根据肿瘤靶区位置、深度的图像信息行3D模板针道设计、打印模板.术前3D模板复位,对术前定位计划3D模板位置和复位时3D模板位置的x轴(左右)、y轴(头脚)进行对比分析,并对不同部位、体位3D模板复位与术前摆位误差进行分析.结果 头颈部、胸部和盆腔粒子植入术前计划3D模板定位x、y轴与复位时3D模板位置平均绝对误差分别为(1.77±1.09)、(2.66±1.65)、(4.00±1.41)、(5.22±1.85)、(1.88±1.29)和(2.52±1.37)mm.与胸部相比,头颈部和盆腔部的x和y轴方向位置误差差异有统计学意义(t=-3.730、-3.080、-3.944、-4.519,P<0.05);其余结果差异无统计学意义(P>0.05).结论 3D模板辅助放射性粒子植入联合CT模拟定位技术对模板定位、复位具有很好的校正作用,误差小、精度高,值得临床普及和推广.
Objective To investigate the accuracy and errors of 3D printing individual nonc oplanar template (3D printing template) for 125I seed implantation in head and neck,thoracic and pelvic recurrent carcinoma.Methods From 2015 to 2016,a total of 41 patients treated with 125I seed implantation under 3D printing template were analyzed.All of them were conducted with CT-simulator scan two days before operation.The x and y axis position errors of 3D printing template between pre-and intro-opcration plan,and set-up error in different site and position were analyzed.Results The x and y axis 3D individual non-coplanar template set-up position errors in head and neck,thoracic and pelvic loication were (1.77±1.09),(2.66±1.65),(4.00±1.41),(5.22 ±1.85),(1.88±1.29) and (2.52 ± 1.37) mm,respectively.Compared with thoracic,statistically significant difference was found in the head and neck and pelvic in x and y axis position errors (t =-3.730,-3.080,-3.944,-4.519,P <0.05).No statistically significant difference was observed in other results (P < 0.05).Conclusions 3D printing individual non-coplanar template assistant I-125 seed implantation are more accurate and efficiency.
URIhttp://hdl.handle.net/20.500.11897/478098
ISSN0254-5098
DOI10.3760/cma.j.issn.0254-5098.2016.12.007
Indexed中文核心期刊要目总览(PKU)
中国科技核心期刊(ISTIC)
中国科学引文数据库(CSCD)
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