[1]杨元佳,童蕾,钟安妮,等.基于3D打印的胸部个体化剂量验证体模设计[J].中国医学物理学杂志,2020,37(6):702-707.[doi:DOI:10.3969/j.issn.1005-202X.2020.06.009]
　YANG Yuanjia,TONG Lei,ZHONG Anni,et al.Design of a 3D printing-based individualized thorax phantom for dose verification[J].Chinese Journal of Medical Physics,2020,37(6):702-707.[doi:DOI:10.3969/j.issn.1005-202X.2020.06.009]
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基于3D打印的胸部个体化剂量验证体模设计()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
37
期数:
2020年第6期
页码:
702-707
栏目:
医学影像物理
出版日期:
2020-06-25

文章信息/Info

Title:
Design of a 3D printing-based individualized thorax phantom for dose verification
文章编号:
1005-202X（2020）06-0702-06
作者:
杨元佳1; 童蕾2; 钟安妮3; 陈超敏3
1.广东省广宁县人民医院器械科， 广东 肇庆526300； 2.广东机电职业技术学院， 广东 广州 510515； 3.南方医科大学生物医学工程学院， 广东 广州 510515
Author(s):
YANG Yuanjia1;  TONG Lei2;  ZHONG Anni3;  CHEN Chaomin3
1. Department of Medical Instrument, Peoples Hospital of Guangning County, Zhaoqing 526300, China 2. Guangdong Mechanical & Electronical Polytechnic, Guangzhou 510515, China 3. School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
关键词:
3D打印; 个体化验证体模设计; 等效材料; 剂量验证
Keywords:
Keywords: 3D printing design of individualized phantom for dose verification equivalent material dose verification
分类号:
R318
DOI:
DOI:10.3969/j.issn.1005-202X.2020.06.009
文献标志码:
A
摘要:
目的：为更精确地对治疗计划进行验证，利用3D打印设计出反映患者真实情况的个体化体模。方法：依据病人定位时的CT图像重建并进行3D打印得到患者的三维立体结构空壳，然后以CT值为依据选择各组织的辐射等效材料完成填充，即得到体现病人特征的个体化剂量验证体模。结果：将合成的等效材料行CT扫描，骨组织、肺组织、软组织、肿瘤CT值分别为1 100、-747.6、-22、-471 HU，误差均小于22%。结论：最终设计的胸部体模能够较准确地体现个体之间的差异，等效材料辐射等效性较好，可用于实际剂量验证。
Abstract:
Abstract: Objective To design an individual phantom that can reflect the real situation of patients by 3D printing technology for realizing more accurate treatment plan verification. Methods Based on the reconstruction according to the CT image obtained during positioning, the shell of the three-dimensional structure of the patient was obtained by 3D printing. Then the shell was filled with radiation tissue-equivalent materials selected according to CT value of each organ, thereby obtaining the individualized phantom which reflected patients characteristics and then was used for dose verification. Results The synthetic equivalent materials were scanned with CT. The obtained CT values of bone tissues, lung tissues, soft tissues and tumor were 1 100, -747.6, -22 and -471 HU, respectively, with errors less than 22%. Conclusion The designed thorax phantom can accurately reflect the differences between individuals, and the tissue-equivalent materials have excellent radiation properties. The designed thorax phantom can be used in the actual dose verification.

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备注/Memo

备注/Memo:
【收稿日期】2020-02-16 【基金项目】国家重点研发计划（2019YFC0118805） 【作者简介】杨元佳，工程师，研究方向：医疗仪器及医学工程，E-mail:571611621@qq.com 【通信作者】陈超敏，教授，研究方向：精确放射治疗技术，E-mail: gzccm@fimmu.edu.cn
更新日期/Last Update: 2020-07-03