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浙江大学学报(医学版)  2018, Vol. 47 Issue (3): 289-293    DOI: 10.3785/j.issn.1008-9292.2018.06.12
专题报道     
照相式三维扫描在漏斗胸评估中的应用
石卓(),李建华*(),高跃,黄婷,梁靓,徐玮泽,舒强
浙江大学医学院附属儿童医院心胸外科, 浙江 杭州 310052
Application of cameral-type three-dimensional scan in assessment of funnel chest
SHI Zhuo(),LI Jianhua*(),GAO Yue,HUANG Ting,LIANG Liang,XU Weize,SHU Qiang
Department of Cardiovascular and Thoracic Surgery, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
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摘要:

目的: 探讨照相式三维扫描在漏斗胸评估中的应用。方法: 选择2016年6月至2017年12月在浙江大学医学院附属儿童医院门诊就诊的80例漏斗胸患儿。所有患儿均常规行胸部CT平扫,选取同一层面纵隔窗,凹陷最低点到脊柱前方为前后径(A1),同时测量与之垂直的最大左右径(B1),计算两者的比值(B1/A1)得到CT Haller指数(CT-HI)。同期采用EinScan-Pro多功能手持式三维扫描仪行胸壁扫描,应用GeoMedic图像软件进行测量分析。在胸骨最凹点的平面上,凹陷最低点皮肤到背部皮肤的距离为前后径(A2),同一平面测量最大左右径(B2),计算两者的比值(B2/A2)得到3D-Haller指数(3D-HI)。采用Pearson相关分析对两种测量方法所得结果进行一致性分析,Kappa检验进行CT-HI和3D-HI判定手术指征的一致性分析。结果: 所有患儿均能安静配合CT及三维扫描检查。80例患儿的CT-HI平均值为3.82±0.96,3D-HI平均值为1.82±0.23。Pearson检验结果显示,CT-HI和3D-HI的相关系数为0.823(P < 0.01)。以CT-HI大于3.2作为判定患儿具有手术指征的界值,则以3D-HI大于1.7判断患儿是否具有手术指征的敏感度为90.48%,特异度为100.0%。CT-HI和3D-HI判定患儿是否具有手术指征具有较高的一致性(Kappa值=0.801)。结论: 三维扫描可用于漏斗胸的评估,当3D-HI大于1.7时提示患儿具有手术指征。

关键词: 漏斗胸/放射摄影术体层摄影术, X线计算机    
Abstract:

Objective: To evaluate the application of cameral-type three-dimensional (3D) scan in the assessment of funnel chest. Methods: Eighty children with funnel chest were collected from the Children's Hospital, Zhejiang University School of Medicine during June 2016 and December 2017. All patients underwent routine CT scan. In the same selected mediastinal window, the lowest point of the depression to the front of the spine was the anteroposterior diameter (A1), and the maximum left to right diameter was B1 (which was perpendicular to A1). The ratio B1/A1 was calculated to get CT Haller index (CT-HI). In the same period, the chest wall scan was performed by EinScan-Pro 3D scanner, and the image was analyzed by GeoMedic image software. On the plane of the most concave point of the sternum, the distance from the lowest point of the skin to the back skin was the anteroposterior diameter (A2), the maximum plane diameter was measured on the same plane (B2), and the ratio B2/A2 was the 3D-Haller index (3D-HI). Pearson correlation analysis was used to analyze the consistency of the two measurements. Kappa test was used to analyze the consistency of surgical indication based on cutoff value of CT-HI and 3D-HI. Results: All children were able to cooperate with CT and 3D chest wall surface scan. The mean value of CT-HI was 3.82±0.96, and that of 3D-HI was 1.82±0.23. Pearson correlation analysis showed that the correlation coefficient between CT-HI and 3D-HI was 0.823 (P < 0.01). When CT-HI > 3.2 and 3D-HI > 1.7 were set as cutoff values for indication of operation, the sensitivity and specificity of 3D-HI were 90.48% and 100.0%, respectively. 3D-HI was well consistent with CT-HI in surgical indication (Kappa=0.801). Conclusions: 3D scan can be used to assess the funnel chest in children, and 3D-HI>1.7 can be used as the cutoff value for surgical indication.

Key words: Funnel chest/radiography    Tomography, X-ray computed
收稿日期: 2018-04-02 出版日期: 2018-09-18
CLC:  R445  
基金资助: 浙江省科技厅国际科技合作项目(2016C54006);浙江省卫生高层次人才培养工程(2016-6)
通讯作者: 李建华     E-mail: stonezhuo@sina.com;lijh@zju.edu.cn
作者简介: 石卓(1978-), 男, 博士, 副主任医师, 主要从事小儿心胸外科的临床及围手术期器官保护研究; E-mail:stonezhuo@sina.com; https://orcid.org/0000-0002-1259-442X
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引用本文:

石卓,李建华,高跃,黄婷,梁靓,徐玮泽,舒强. 照相式三维扫描在漏斗胸评估中的应用[J]. 浙江大学学报(医学版), 2018, 47(3): 289-293.

SHI Zhuo,LI Jianhua,GAO Yue,HUANG Ting,LIANG Liang,XU Weize,SHU Qiang. Application of cameral-type three-dimensional scan in assessment of funnel chest. J Zhejiang Univ (Med Sci), 2018, 47(3): 289-293.

链接本文:

http://www.zjujournals.com/med/CN/10.3785/j.issn.1008-9292.2018.06.12        http://www.zjujournals.com/med/CN/Y2018/V47/I3/289

图 1  CT Haller指数(CT-HI)相关参数的测量示意
图 2  三维扫描重建和测量
图 3  3D Haller指数(3D-HI)相关参数的测量示意
图 4  CT-HI和3D-HI的Pearson线性回归分析
(n)
CT-HI 3D-HI 合计
手术# 非手术
*CT-HI >3.2;#3D-HI>1.7.CT-HI:CT Haller指数; 3D-HI:3D Haller指数.
手术* 57 6 63
非手术 0 17 17
合计 57 23 80
表 1  CT-HI与3D-HI判定漏斗胸患儿手术指征的一致性分析
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