2种不同形变配准软件在头颈部勾画中的作用评价

doi:10.19438/j.cjoms.2021.06.007

摘要/Abstract

摘要： 目的比较2种目前放疗市场上主流的形变配准软件在CT形变配准中的结果表现,确定其在图像配准中的价值。方法选择本院2018年2月—2020年6月收治的15例重复定位的头颈部肿瘤患者作为研究对象,治疗过程中前、后2组CT图像正常组织由同一位资深医师进行勾画,分别在MIM软件和AccuContour软件中进行形变配准,将第一组图像的正常组织形变到第二组图像中,与第二组图像直接勾画的组织进行计算,得到相似性系数（Dice系数）与空间评价指标（Hausdorff距离）。采用SPSS 23.0软件包对数据进行统计学分析。结果 2种形变配准软件都有良好的形变配准功能。正常组织显像不同,对配准结果有一定影响,眼球、下颌骨等显像良好的组织配准结果更好,晶体、视神经、视交叉等小体积组织配准结果较差。2组软件相比,MIM软件更具有优势;Dice系数评价中,MIM软件数据更佳的比率为67%,其中55%存在统计学意义（P<0.05）;Hausdorff距离显示,MIM软件数据更佳的比率为74%,其中48%的指标存在统计学意义（P<0.05）。结论 2种形变配准软件都具备良好的形变配准能力,相对而言,MIM软件更有优势。对形变配准精度要求较高时,选择MIM软件更佳。

关键词: 形变配准, MIM软件, AccuContour软件, Monaco治疗计划系统, 头颈部肿瘤

Abstract: PURPOSE: To compare the results of two deformation registration softwares of CT deformation registration in image registration and select a reasonable deformation registration software. METHODS: Fifteen reposition patients with head and neck cancer were collected, the normal tissues of the two groups of CT images were contoured by the same senior doctors, then the deformation and registration proceeded in MIM software and AccuContour software respectively. The normal tissues of the first group were deformed into the second group, and the tissues directly delineated by the second group were calculated to obtain the similarity coefficient (Dice coefficient) and spatial evaluation index (Hausdorff distance). SPSS 23. 0 software package was used for data analysis. RESULTS: Both of the two softwares had good deformation and registration function. Different imaging results of normal tissues had a certain impact on the registration results. The registration results of tissues with good imaging such as eyeball and mandible were better, while the registration results of tissues with small volume such as crystal, optic nerve and optic chiasm were relatively poor. Among the comparison results of the two groups of softwares, MIM software had more advantages. In the evaluation of Dice coefficient, the ratio of MIM software with better data was 67%, 55% of which was statistically significant(P< 0. 05). Hausdorff distance showed that the ratio of MIM software data was better was 74%, of which 48% indicators had statistical significance(P< 0. 05). CONCLUSIONS: In the aspect of deformation registration, both kinds of deformation registration softwares had good deformation registration ability. In comparison, MIM software has more advantages, and it is better to choose MIM software when the requirement of deformation registration accuracy is high.

Key words: Deformation registration, MIM software, AccuContour software, Monaco treatment planning system, Head and neck tumour

中图分类号:

R816.98

樊文慧, 石慧烽, 涂文勇. 2种不同形变配准软件在头颈部勾画中的作用评价[J]. 中国口腔颌面外科杂志, 2021, 19(6): 517-524.

FAN Wen-hui, SHI Hui-feng, TU Wen-yong. Study of 2 different deformation registration softwares in head and neck sketch[J]. China J Oral Maxillofac Surg, 2021, 19(6): 517-524.

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