摘要
目的:确定利用锥形束容积体层成像技术(cone-beam computed tomography,CBCT)重建影像转化得到的侧位片进行头影测量与传统数字化侧位片头影测量数据是否具有一致性。方法:将65例患者的CBCT重建影像在Dolphin软件中转化得到的侧位片,和传统数字化侧位片在同一时间进行头影测量,将测量结果进行配对比较。用配对t检验和拟合优度检验分析测量结果。结果:线距除上面高与全面高之比、下面高与全面高之比,角度除L1-AP、IMPA、U1-SN、SNA外,其余测量结果两者间差异均有统计学意义(P<0.05)。两者拟合优度检验显示,线距中7项拟合程度较高,3项拟合程度中等;角度中10项拟合程度较高,3项拟合程度中等,2项拟合程度较差;可以认为,除NP-FH、SGn-FH外均有较好的拟合程度,即两种测量结果均存在相关性。结论:CBCT转化的侧位片和传统数字化侧位片在大部分头影测量项目上具有相关性,如果需要用转化侧位片进行临床诊断,还需要重新定义参考值。
Objective：The aim of this study was to compare cephalometric measurements obtained from conventional cephalograms with synthesized cone beam CT（CBCT） cephalograms. Methods：Cephalometric analyses of 65 patients were conducted on conventional and CBCT-synthesized cephalograms at the same time. The lateral cephalograms were manually analyzed through the Dolphin Imaging 11.0TMsoftware. Measurement results were compared and analyzed by paired t-test and test of goodness of fit.Results：Significant differences between the conventional cephalograms and synthesized CBCT cephalograms were found in all measurements except N-ANS / N-Me,ANS-Me / N-Me,L1-AP,IMPA,U1-SN and SNA（P 〈 0.05）. The test of goodness of fit showed that the fitting degree of linear distance in 7 items was high,in 3 items was medium;the fitting degree of angle in 10 items was high,in 3 items was medium,in 2 items was low. It can be considered that there was a correlation between two kinds of measurement results except NP-FH and SGn-FH. Conclusion：Most measurements show correlation between conventional cephalograms and synthesized CBCT cephalograms.
出处
《南京医科大学学报（自然科学版）》
CAS
CSCD
北大核心
2016年第1期94-98,共5页
Journal of Nanjing Medical University(Natural Sciences)
基金
江苏省临床医学专项(bl2014073)
江苏高校优势学科建设工程资助项目(2014-37)
关键词
锥体束CT
转化侧位片
传统数字化侧位片
头影测量
cone-beam computed tomography
cone beam CT-synthesized cephalograms
conventional cephalograms
