Page 39 - Craniomaxillofacial Implant Surgery - Jeroen P.J. Dings
P. 39
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
37