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学科主题: 口腔医学
题名:
Accuracy and Repeatability of Computer Aided Cervical Vertebra Landmarking in Cephalogram
作者: Chen, Lili1; Lan, Zhicong1; Xu, Xiangyang2; Lin, Jiuxiang3,4; Hu, Huaifei2
关键词: cervical vertebral maturation ; fast marching method ; parabolic curve fitting ; Landmark ; accuracy ; repeatability
刊名: JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY-MEDICAL SCIENCES
发表日期: 2012-02-01
DOI: 10.1007/s11596-012-0021-y
卷: 32, 期:1, 页:119-123
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Biochemistry & Molecular Biology
研究领域[WOS]: Biochemistry & Molecular Biology
关键词[WOS]: CEPHALOMETRIC LANDMARKS ; SKELETAL MATURATION ; IDENTIFICATION ; GROWTH
英文摘要:

The accuracy and repeatability of computer aided cervical vertebra landmarking (CACVL) were investigated in cephalogram. 120 adolescents (60 boys, 60 girls) aged from 9.1 to 17.2 years old were randomly selected. Twenty-seven landmarks from the second to fifth cervical vertebrae on the lateral cephalogram were identified. In this study, the system of CACVL was developed and used to identify and calculate the landmarks by fast marching method and parabolic curve fitting. The accuracy and repeatability in CACVL group were compared with those in two manual landmarking groups [orthodontic experts (OE) group and orthodontic novices (ON) group]. The results showed that, as for the accuracy, there was no significant difference between CACVL group and OE group no matter in x-axis or y-axis (P>0.05), but there was significant difference between CACVL group and ON group, as well as OE group and ON group in both axes (P<0.05). As for the repeatability, CACVL group was more reliable than OE group and ON group in both axes. It is concluded that CACVL has the same or higher accuracy, better repeatability and less workload than manual landmarking methods. It′s reliable for cervical parameters identification on the lateral cephalogram and cervical vertebral maturation prediction in orthodontic practice and research.

语种: 英语
所属项目编号: 30801314 ; 2008CBD088
项目资助者: National Natural Sciences Foundation of China ; China Hubei Provincial Science and Technology Department
WOS记录号: WOS:000302925500021
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/54230
Appears in Collections:北京大学口腔医学院_牙周科_期刊论文

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作者单位: 1.Res Ctr Craniofacial Growth & Dev, Beijing 100081, Peoples R China
2.Huazhong Univ Sci & Technol, Tongji Med Coll, Union Hosp, Dept Stomatol, Wuhan 430022, Peoples R China
3.Huazhong Univ Sci & Technol, Sch Comp Sci & Technol, Educ Minist Image Proc & Intelligent Control, Key Lab, Wuhan 430071, Peoples R China
4.Peking Univ, Sch & Hosp Stomatol, Dept Orthodont, Beijing 100081, Peoples R China

Recommended Citation:
Chen, Lili,Lan, Zhicong,Xu, Xiangyang,et al. Accuracy and Repeatability of Computer Aided Cervical Vertebra Landmarking in Cephalogram[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY-MEDICAL SCIENCES,2012,32(1):119-123.
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