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Table 2 Inter-reader agreement of arteries without total occlusion on 3D CMR VWI images

From: Assessment of carotid atherosclerotic disease using three-dimensional cardiovascular magnetic resonance vessel wall imaging: comparison with digital subtraction angiography

Variables

All arteries (n = 99)

Arteries with stenosis > 50% of US (n = 48)

 

ICC

CMR reader 1

CMR reader 2

Mean Difference ± SE

P-value

Limits of Agreement

ICC

CMR reader 1

CMR reader 2

Mean Difference ± SE

P -value

Limits of Agreement

CCA, mm

0.96(0.94,0.97)

7.65 ± 1.34

7.72 ± 1.51

− 0.07 ± 0.06

0.244

−1.16,1.03

0.96(0.94,0.98)

7.48 ± 1.40

7.62 ± 1.66

−0.15 ± 0.08

0.087

−1.28,0.99

C1, mm

0.98(0.97,0.99)

4.65 ± 0.92

4.72 ± 0.90

−0.10 ± 0.03

0.001

−0.61,0.48

0.96(0.93,0.98)

4.49 ± 0.98

4.56 ± 0.90

−0.07 ± 0.05

0.164

−0.46,0.31

C2, mm

0.98(0.97,0.99)

4.15 ± 0.89

4.25 ± 0.88

−0.07 ± 0.04

0.050

−0.74,0.61

0.97(0.95,0.99)

4.03 ± 1.00

4.11 ± 1.00

−0.08 ± 0.05

0.081

−0.49,0.32

C3, mm

0.96(0.94,0.97)

4.13 ± 0.96

4.20 ± 0.93

−0.08 ± 0.04

0.024

−0.76,0.61

0.96(0.94,0.98)

3.93 ± 1.00

4.00 ± 0.99

−0.07 ± 0.05

0.067

−0.47,0.34

C4, mm

0.99(0.98,0.99)

3.61 ± 1.14

3.68 ± 1.10

−0.08 ± 0.03

0.017

−0.50,0.64

0.99(0.98,0.99)

3.43 ± 1.19

3.45 ± 1.16

−0.01 ± 0.04

0.700

−0.49,0.46

C5, mm

0.97(0.95,0.98)

3.90 ± 1.04

3.98 ± 1.01

−0.09 ± 0.04

0.036

−0.88,0.73

0.97(0.95,0.98)

3.77 ± 1.16

3.80 ± 1.11

−0.03 ± 0.06

0.618

−0.49,0.43

C6, mm

0.98(0.97,0.99)

3.04 ± 0.84

3.14 ± 0.84

−0.08 ± 0.02

0.002

−0.53,0.38

0.98(0.97,0.99)

2.95 ± 0.99

3.01 ± 1.01

−0.06 ± 0.04

0.101

−0.47,0.35

C7, mm

0.97(0.96,0.98)

2.87 ± 0.76

2.98 ± 0.75

−0.08 ± 0.03

0.012

−0.66,0.51

0.97(0.95,0.99)

2.76 ± 0.69

2.81 ± 0.68

−0.05 ± 0.03

0.122

−0.33,0.23

Stenosis (%)

0.99(0.99,0.99)

34.71 ± 27.77

34.42 ± 27.23

0.29 ± 0.43

0.501

−8.09,8.68

0.98(0.97,0.99)

57.50 ± 17.25

56.00 ± 17.36

1.50 ± 0.68

0.032

−10.71,7,71

Stenosis diameter, mm

0.99(0.99,0.99)

1.93 ± 1.65

1.97 ± 1.65

−0.04 ± 0.02

0.058

−0.43,0.35

0.99(0.98,0.99)

2.08 ± 0.98

2.17 ± 0.93

−0.09 ± 0.03

0.090

−0.53,0.35

Reference diameter, mm

0.99(0.99,0.99)

3.62 ± 2.47

3.67 ± 2.51

−0.05 ± 0.01

0.001

−0.34,0.24

0.99(0.99,0.99)

4.83 ± 1.21

4.89 ± 1.25

−0.06 ± 0.02

0.059

−0.39,0.28

Lesion length, mm

0.99(0.99,0.99)

8.59 ± 7.29

8.74 ± 7.37

−0.15 ± 0.03

<0.001

−0.83,0.53

0.99(0.99,0.99)

13.81 ± 6.23

14.02 ± 6.27

−0.20 ± 0.07

0.004

−1.13,0.72

  1. Note: 31 arteries with total occlusion displayed on CMR images were excluded
  2. Data are presented as mean ± standard deviation. Numbers in parentheses are 95% CI
  3. 3D CMR VWI, three-dimensional cardiovascular magnetic resonance vessel wall imaging; CCA, common carotid artery; CI, confidence interval; ICC, intraclass correlation coefficient; SD, standard deviation; SE, standard error; US, ultrasound