Int J Stomatol

Inter J Stomatol ›› 2018, Vol. 45 ›› Issue (6): 690-694.doi: 10.7518/gjkq.2018.06.012

• Original Articles • Previous Articles     Next Articles

Clinical study of three dimensional measurement of upper airway in adult individual normal occlusion with different softwares

Yitong Meng,Xiaodong Zhang()   

  1. Dept. of Stomatology, The General Hospital of Shenyang Military, Shenyang 110000, China
  • Received:2018-03-28 Revised:2018-08-06 Online:2018-11-01 Published:2018-11-15
  • Contact: Xiaodong Zhang E-mail:zxd99233@163.com
  • Supported by:
    This study was supported by Natural Science Foundation of Liaoning(2015020428)

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Abstract:

Objective To study difference between the three different measurement softwares for the same anatomic location of the upper airway, and analyse the reliability of the three measurement softwares.Methods The cone beam CT (CBCT) data of 48 normal individual occlusion volunteers were transformed into Mimics 17.0, Dolphin 11.8, and Invivo 5.1, and measured the area and the volume of their airways. Each tester measured by the same software for 3 times. Calculated the intra-class correlation coefficient (ICC), two way analysis of variance in order by the utilization of SPSS 24.0 statistical software to test the reliability and the statistical significance of different measuring methods.Results Individual normal occlusion CBCT volunteers were introduced into Mimics 17.0, Dolphin 11.8 and Invivo 5.1, finding no significant differences between thress softwares, therefore, they are comparable. The average ICC values of Mimics, Dolphin, Invivo were 0.944, 0.889, 0.807.Conclusion The measuring results of Mimics 17.0, Dolphin 11.8, and Invivo 5.1 were basically the same, and the reliability of three softwares were all high, but Mimics repeatability was the highest, followed by Dolphin, while Invivo was the lowest.

Key words: individual normal occlusion, upper airway, cone beam CT

CLC Number: 

  • R78

TrendMD: 

Tab 1

CBCT imported three software for compatibility analysis of variance"

项目 Mimics平均值 Dolphin平均值 Invivo平均值 F值 P值
V1/mm3 7 241.057 7 300.450 7 241.666 0.653 0.525
V2/mm3 7 893.055 7 920.550 7 875.000 0.602 0.398
V3/mm3 4 021.845 4 102.600 4 041.666 0.435 0.566
S1/mm2 523.720 521.362 525.483 0.206 0.794
S2/mm2 246.137 244.362 244.949 0.003 0.997
S3/mm2 242.487 240.625 241.077 0.104 0.896

Tab 2

The ICC results of the three measurements of the three software for the same measurement item"

项目 Mimics Dolphin Invivo
ICC 95%置信区间 ICC 95%置信区间 ICC 95%置信区间
下限 上限 下限 上限 下限 上限
V1 0.959 0.920 0.981 0.895 0.792 0.951 0.876 0.755 0.942
V2 0.978 0.956 0.990 0.936 0.875 0.970 0.787 0.580 0.901
V3 0.920 0.843 0.963 0.986 0.973 0.936 0.772 0.550 0.894
S1 0.939 0.880 0.972 0.938 0.878 0.971 0.765 0.536 0.891
S2 0.907 0.817 0.957 0.869 0.741 0.939 0.762 0.531 0.889
S3 0.913 0.828 0.959 0.865 0.734 0.937 0.845 0.695 0.928
S4 0.997 0.993 0.998 - - - - - -
S5 0.915 0.832 0.960 - - - - - -
S6 0.971 0.943 0.987 - - - - - -
S7 - - - 0.831 0.667 0.922 - - -
S8 - - - 0.863 0.730 0.936 - - -
S9 - - - 0.823 0.650 0.918 - - -
S10 - - - - - - 0.785 0.577 0.900
S11 - - - - - - 0.782 0.571 0.899
S12 - - - - - - 0.893 0.788 0.950
平均值 0.944 - - 0.889 - - 0.807 - -
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