|
Intraobserver
|
1.5 T
| |
3 T
| |
|---|
|
Septal
|
SAX
|
Septal
|
SAX
|
|---|
|
Native T1
|
|
MD ± SD (ms)
|
3 ± 11
|
-16 ± 23
|
3 ± 13
|
-6 ± 16
|
|
CoV (%)
|
1.1
|
2.3
|
1.2
|
1.5
|
|
Agreement (r)
|
0.84**
|
0.72**
|
0.87**
|
0.74**
|
|
Post-contrast T1
|
|
MD ± SD (ms)
|
5 ± 12
|
3 ± 24
|
-6 ± 15
|
-3 ± 13
|
|
CoV (%)
|
3.1
|
6.6
|
3.2
|
3.2
|
|
Agreement (r)
|
0.78**
|
0.53*
|
0.79**
|
0.62**
|
|
Lambda
|
|
MD ± SD
|
0.014 ± 0.009
|
-0.017 ± 0.013
|
0.017 ± 0.002
|
0.019 ± 0.019
|
|
CoV (%)
|
4.1
|
5.2
|
5.1
|
5.9
|
|
Agreement (r)
|
0.81**
|
0.69**
|
0.78**
|
0.61**
|
|
Interobserver
|
1.5 T
| |
3 T
| |
| |
Septal
|
SAX
|
Septal
|
SAX
|
|
Native T1
|
|
MD ± SD (ms)
|
-1.5 ± 19
|
2.3 ± 24
|
0.3 ± 15
|
-2.9 ± 49
|
|
CoV (%)
|
4.3
|
6.9
|
1.4
|
2.7
|
|
Agreement (r)
|
0.89**
|
0.73**
|
0.93**
|
0.75**
|
|
Post-contrast T1
|
|
MD ± SD (ms)
|
-6.3 ± 52
|
-6.9 ± 53
|
6.2 ± 71
|
-8.4 ± 79
|
|
CoV (%)
|
4.3
|
7.1
|
2.8
|
3.3
|
|
Agreement (r)
|
0.79**
|
0.69**
|
0.81**
|
0.54**
|
|
Lambda
|
|
MD ± SD
|
0.013 ± 0.019
|
-0.017 ± 0.002
|
0.019 ± 0.008
|
0.011 ± 0.003
|
|
CoV (%)
|
7.2
|
7.9
|
9.1
|
11.7
|
|
Agreement (r)
|
0.71**
|
0.59**
|
0.68**
|
0.53**
|
|
Interstudy
|
1.5 T
| |
3 T
| |
| |
Septal
|
SAX
|
Septal
|
SAX
|
|
Native T1
|
|
MD ± SD (msec)
|
2.4 ± 9.2
|
6.1 ± 21
|
-1.5 ± 12
|
4.9 ± 18
|
|
CoV (%)
|
1.2
|
4.5
|
3.6
|
8.4
|
|
Agreement (r)
|
0.92**
|
0.78**
|
0.95**
|
0.86**
|
|
Post-contrast T1
|
|
MD ± SD (ms)
|
-8 ± 54
|
35 ± 72
|
19 ± 65
|
31 ± 62
|
|
CoV (%)
|
9.0
|
12
|
12
|
15
|
|
Agreement (r)
|
0.62**
|
0.45*
|
0.55**
|
0.41**
|
|
Lambda
|
|
MD ± SD
|
0.017 ± 0.021
|
0.021 ± 0.029
|
0.016 ± 0.018
|
0.019 ± 0.035
|
|
CoV (%)
|
4.2
|
6.1
|
3.5
|
7.8
|
|
Agreement (r)
|
0.79**
|
0.69**
|
0.82**
|
0.73**
|
- Data is expressed as mean ± SD, CoV coefficient of variability, r = Pearson correlation coefficient for agreement between two measurements, p-value < 0.05*, < 0.01** for significant association.
