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Table 1 Intraobserver, Interobserver and Inter-study reproducibility of CMR

From: Reproducibility of First Pass Perfusion CMR at rest and during hyperaemia for estimation of myocardial perfusion

 

Semi quantitative (Unit less)

Quantitative (ml/g/min)

 

Rest MPI

Stress MPI

Reserve Index

Rest

Stress

Reserve

Intraobserver

      

Mean ± SD

0.11 ± 0.02

0.18 ± 0.03

1.73 ± 0.3

1.94 ± 0.4

4.3 ± 0.6

2.3 ± 0.5

Mean%difference ± SD

0.46 ± 6.65

0.67 ± 3

0.7 ± 6

5.4 ± 14

8 ± 8

3.5 ± 16.8

Coefficiant of Variability(%)

7%

3%

5.4%

12%

8%

19.7%

p-value (Student t test)

0.89

0.92

0.46

0.61

0.18

0.81

Interobserver

Mean ± SD

0.11 ± 0.02

0.19 ± 0.03

1.7 ± 0.3

1.9 ± 0.37

3.9 ± 0.5

2.14 ± 0.4

Mean%difference ± SD

9 ± 8

4.8 ± 4

4 ± 8.6

0.37 ± 20

10 ± 20

10 ± 27

Coefficiant of Variability(%)

9.8%

4.3%

4 ± 8.6

21.6%

20.6%

28.8%

p-value (Student t test)

0.18

0.45

0.63

0.99

0.14

0.22

Mean ± SD

0.11 ± 0.02

0.19 ± 0.03

1.79 ± 0.36

1.77 ± 0.3

4.2 ± 0.5

2.5 ± 0.42

Mean%difference ± SD

3 ± 17

0.9 ± 12

3.8 ± 24

13 ± 20

4.3 ± 21

17 ± 27

Coefficiant of Variability(%)

17.63%

13.6%

27%

22%

21.5%

28.9%

p-value (Student t test)

0.18

0.71

0.56

0.14

0.52

0.11