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Table 4 Various descriptive statistics

From: Accuracy of triangular meshes of stone models created from DICOM cone beam CT data

 

Total

Planmeca80

Planmeca90

Newtom VG

No. of meshes

30

10

10

10

Mean threshold value1

2092

2155

2145

1975

Min threshold value1

1825

1925

1825

1825

Max threshold value1

2425

2425

2425

2225

SD1

184

177

193

135

95% CI1

2023–2161

2029–2281

2007–2283

1878–2072

Mean difference (mm)2

0.052

0.059

0.057

0.040

SD2

0.01

0.0063

0.0066

0.006

Min diffrence2

0.032

0.051

0.05

0.032

Max difference2

0.07

0.069

0.07

0.049

95% CI2

0.0040

0.0045

0.0047

0.0043

Mean < 95%3

0.17

0.18

0.18

0.13

Min < 95%3

0.1

0.15

0.16

0.10

Max< 95%3

0.21

0.21

0.21

0.16

Mean IQR4

0.067

0.073

0.074

0.052

Mean DI5

3.6

4.3

4.3

2.1

  1. 1The segmentation with the lowest Dissimilarity Index
  2. 2Statistics referring to the distribution of the median differences
  3. 3Values of differences for the 95% of the total number of points between the pairs of meshes (reference standard/CBCT)
  4. 4IQR interquartile range
  5. 5DI Dissimilarity Index