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Table 2 Coefficient of variation, Intraobserver and interobserver agreement for three dimensional cephalometric measurements

From: Comparison of a tridimensional cephalometric analysis performed on 3T-MRI compared with CBCT: a pilot study in adults

Measurements

CoeffVar

Intraobserver ICC

Interobserver ICCa

CBCT

Mean ± SD

MRI

Mean ± SD

CBCT (Obs. I; Obs II)

MRI (Obs. I; Obs II)

CBCT

MRI

PNS-A (mm)

0.049 ± 0.002

0.036 ± 0.007

0.98; 0.96

0.94; 0.95

0.97

0.92

Go R–Me (mm)

0.029 ± 0.003

0.037 ± 0.015

0.99; 0.96

0.95; 0.97

0.98

0.80

Go L–Me (mm)

0.03 ± 0.001

0.031 ± 0.002

0.98; 0.95

0.87; 0.92

0.95

0.74

S–N (mm)

0.026 ± 0.007

0.029 ± 0.009

0.99; 0.90

0.81; 0.92

0.93

0.72

N–Me (mm)

0.048 ± 0.005

0.045 ± 0.008

0.98; 0.98

0.94; 0.97

0.99

0.87

N–ANS (mm)

0.049 ± 0.003

0.057 ± 0.002

0.98; 0.99

0.87; 0.90

0.98

0.92

ANS–Me (mm)

0.075 ± 0.004

0.083 ± 0.007

0.98; 0.97

0.91; 0.88

0.99

0.91

Go R–S (mm)

0.052 ± 0.003

0.054 ± 0.007

0.99; 0.99

0.90; 0.94

0.98

0.89

Go L–S (mm)

0.041 ± 0.006

0.044 ± 0.008

0.99; 0.99

0.92; 0.95

0.98

0.86

Go R–Cd R (mm)

0.019 ± 0.002

0.03 ± 0.01

0.97; 0.98

0.86; 0.95

0.94

0.89

Go L–Cd L (mm)

0.025 ± 0.004

0.021 ± 0.03

0.98; 0.95

0.78; 0.90

0.91

0.79

UI–Sag P (mm)

0.33 ± 0.15

0.38 ± 0.11

0.97; 0.99

0.83; 0.90

0.98

0.65

LI–Sag P (mm)

0.38 ± 0.06

0.40 ± 0.09

0.93; 0.96

0.75; 0.87

0.92

0.70

SNA

0.032 ± 0.002

0.031 ± 0.01

0.99; 0.98

0.76; 0.81

0.99

0.78

SNB

0.038 ± 0.003

0.032 ± 0.004

0.99; 0.98

0.72; 0.69

0.93

0.74

ANB

0.87 ± 0.25

0.97 ± 0.63

0.93; 0.98

0.85; 0.83

0.97

0.82

PNS–ANS–Go R–Me

0.076 ± 0.003

0.087 ± 0.02

0.99; 0.99

0.93; 0.95

0.97

0.84

PNS–ANS–Go L–Me

0.096 ± 0.004

0.097 ± 0.02

0.99; 0.98

0.92; 0.87

0.98

0.88

Cd R–Go R–Me

0.022 ± 0.005

0.026 ± 0.007

0.98; 0.98

0.93; 0.95

0.96

0.97

Cd L–Go L–Me

0.019 ± 0.003

0.022 ± 0.008

0.99; 0.98

0.92; 0.96

0.99

0.83

Ba–S–N

0.026 ± 0.003

0.028 ± 0.007

0.98; 0.99

0.94; 0.95

0.97

0.85

SN–PNS–ANS

0.30 ± 0.006

0.31 ± 0.04

0.98; 0.99

0.92; 0.94

0.98

0.82

SN–Go R–Me

0.076 ± 0.007

0.079 ± 0.005

0.96; 0.97

0.93; 0.95

0.98

0.92

SN–Go L–Me

0.085 ± 0.03

0.097 ± 0.07

0.97; 0.92

0.98; 0.97

0.96

0.89

  1. CoeffVar coefficient of variation, ICC intraclass correlation coefficient, Obs observer
  2. aInterobeserver ICC data are given by means of measurements of two time points and two investigators