Table 3 Intra-study reproducibility as evaluated by the absolute difference, coefficient of variation (COV) (expressed in %) and interclass correlation (ICC) between results from the first (seq. 1) and second (seq. 2) tagged sequences within the same cardiac magnetic resonance exam during isoflurane (group IF) and pentobarbital (group P) anesthesia.

From: Test-retest reproducibility of cardiac magnetic resonance imaging in healthy mice at 7-Tesla: effect of anesthetic procedures

 

Group IF

Group P

p*

Seq. 1

Seq. 2

Absolute difference

COV

ICC [95%CI] (p)

Seq. 1

Seq. 2

Absolute difference

COV

ICC [95%CI] (p)

Ecc base

−10.14 (2.82)

−10.71 (3.78)

1.81 (1.74)

19.60 (17.54)

0.143 [−0.545–0.734] (0.346)

−12.84 (2.79)

−13.22 (2.47)

1.86 (1.18)

15.43 (10.67)

0.539 [−0.151–0.885] (0.056)

0.931

Ecc apex

−12.27 (2.97)

−12.76 (2.59)

1.65 (1.43)

17.49 (19.06)

−0.599 [−0.895–0.103] (0.958)

−15.24 (2.52)

−14.31 (2.44)

2.78 (1.77)

22.23 (18.80)

0.462 [−0.250–0.860] (0.093)

0.070

Err base

6.08 (2.44)

6.47 (2.78)

2.45 (2.06)

29.51 (21.02)

−0.438 [−0.841–0.314] (0.883)

4.60 (3.04)

6.74 (4.68)

2.44 (2.99)

31.48 (25.37)

0.330 [−0.391–0.813] (0.179)

0.993

Err apex

6.15 (2.35)

7.33 (1.62)

1.78 (1.35)

23.95 (18.56)

−0.449 [−0.845–0.301] (0.890)

7.03 (2.95)

8.90 (5.15)

2.45 (3.02)

22.45 (18.14)

0.447 [−0.268–0.855] (0.101)

0.404

Ell

−10.54 (2.47)

−11.02 (2.76)

1.79 (2.03)

26.68 (46.65)

−0.785 [−0.948–−0.258] (0.994)

−13.18 (2.13)

−13.38 (4.04)

2.94 (3.08)

26.65 (29.06)

0.234 [−0.475–0.775] (0.259)

0.230

  1. Data are the mean (SD) except for ICC [95% interval confidence] (p). *Comparison of intra-study difference between groups IF and P.
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