三维转化头影测量与数字化侧位片头影测量的对比

发布时间：2018-06-16 03:04

本文选题：锥体束CT + 转化侧位片　；参考：《南京医科大学学报(自然科学版)》2016年01期

【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(P0.05)。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。
[Abstract]:Aim: to determine whether cone-beam computed tomography-CBCT-based imaging technique is consistent with conventional digital lateral cephalometric measurements. Methods: the CBCT reconstruction images of 65 patients were transformed into Dolphin software, and the cephalometric measurements were carried out at the same time as the traditional digital lateral films. The results were compared with each other. The measurement results were analyzed by paired t test and goodness of fit test. Results: in addition to the ratio of the top height to the total height, the ratio of the lower height to the total height, the angle of the line distance was significantly different from that of the L1-APMPA-U1-SNN SNA except for the L1-APPIMPA-U1-SNN SNA (P 0.05). The results showed that the fitting degree of 7 items in line distance was higher than that of 3 items in line distance, 10 items of angle fit degree was higher than that of high fitting degree and 3 items fit degree was lower than that of angle, and it could be concluded that all of them had better fitting degree except NP-FHN SGn-FH. That is, there is correlation between the two measurements. Conclusion the ratio CBCT transformed lateral radiographs and traditional digital lateral radiographs are correlated in most cephalometric items. If we need to use the transformed lateral films for clinical diagnosis, we also need to redefine the reference values.
【作者单位】：南京医科大学口腔疾病研究江苏省重点实验室南京医科大学附属口腔医院正畸科;
【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)
【分类号】：R783.5

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