Page 39 - Craniomaxillofacial Implant Surgery - Jeroen P.J. Dings
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                                Reliability and accuracy of image-guided craniofacial implant planning
Table 2. Systematic difference of linear distance measurements with golden standard (GS) in relation to different anatomical locations.
2
Anatomical location
   Scan type
   Bias Observers-GS (95% confidence interval)
 P value (GS)
   Interobserver error of linear distance measurements
 P value (interobserver)
     Nose
 Nasal bone
   CBCT (Procera)
 0.57 (0.35-0.79)
   <.001
  0.24
 1.000
   CBCT (Maxilim)
 0.30 (0.05-0.55)
   0.020
  0.24
   MDCT (Procera)
  0.52 (0.26-0.77)
    <.001
   0.27
   MDCT (Maxilim)
0.37 (0.08-0.65)
  0.014
 0.21
  Anterior nasal spine
   CBCT (Procera)
  -0.11 (-059-0.38
    0.657
   0.70
   <0.001
  CBCT (Maxilim)
-0.13 (-0.77-0.50)
  0.669
 0.56
   MDCT (Procera)
  0.87 (0.68-1.06)
    <.001
   0.24
   MDCT (Maxilim)
0.97 (0.75-1.19)
  <.001
 0.19
  Piriform aperture
   CBCT (Procera)
  0.85 (0.52-1.18)
    <.001
   0.44
   0.004
  CBCT (Maxilim)
0.81 (0.43-1.18)
  <.001
 0.43
   MDCT (Procera)
  0.66 (0.45-0.87)
    <.001
   0.20
   MDCT (Maxilim)
0.87 (0.69-1.05)
  <.001
 0.25
  Orbit
  Supraorbital ridge
    CBCT (Procera)
  0.26 (0.05-0.48)
    0.018
   0.39
   0.003
   CBCT (Maxilim)
-0.06 (-0.39-0.28)
  0.732
 0.29
   MDCT (Procera)
 0.56 (0.37-0.74)
   <.001
  0.29
   MDCT (Maxilim)
  0.59 (0.38-0.80)
    <.001
   0.23
  Lateral orbital ridge
  CBCT (Procera)
0.74 (0.48-0.99)
  <.001
 0.31
 0.454
   CBCT (Maxilim)
 0.71 (0.39-1.02)
   <.001
  0.25
   MDCT (Procera)
  0.25 (-0.05-0.55)
    0.101
   0.30
   MDCT (Maxilim)
0.37 (0.00-0.74)
  0.050
 0.23
  Inferior orbital ridge
    CBCT (Procera)
 1.10 (0.70-1.49)
   <.001
  0.30
  0.003
    CBCT (Maxilim)
  0.87 (0.50-1.23)
    <.001
   0.39
   MDCT (Procera)
0.65 (0.40-0.91)
  <.001
 0.18
   MDCT (Maxilim)
 0.50 (0.22-0.79)
   0.001
  0.17
  Temporal bone
    CBCT (Procera)
 0.59 (0.19-1.00)
   0.007
  0.32
 0.743
    CBCT (Maxilim)
  0.54 (0.23-0.85)
    0.002
   0.42
   MDCT (Procera)
 0.29 (-0.02-0.61)
   0.063
  0.34
   MDCT (Maxilim)
 0.29 (-0.10-0.69)
   0.132
  0.22
 Interobserver error of linear distance measurements. P-value (interobserver) indicate statistical significance of differences between (pooled) CBCT and (pooled) MDCT interobserver variation in linear measurements
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