| 姜玉良,李宾,吉喆,郭福新,孙海涛,范京红,李旭,张路静,王俊杰.3D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[J].中华放射医学与防护杂志,2016,36(12):913-916 |
| 3D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 |
| Analysis of position errors of 3D printing individual non-coplanar template for radioactive seed implantation for malignant tumor |
| 投稿时间：2016-06-14 |
| DOI：10.3760/cma.j.issn.0254-5098.2016.12.007 |
| 中文关键词: 3D打印 模板 放射性粒子植入 误差 |
| 英文关键词:3D printing Template Radioactive seed implantation Errors |
| 基金项目:首都临床特色应用研究与成果推广项目（Z151100004015171） |
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| 摘要点击次数: 3776 |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| Objective To investigate the accuracy and errors of 3D printing individual non-coplanar 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-operation 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 location 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. |
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