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Table 3 Intra-observer and inter-observer variability for %Δ in LVEDV, LVESV, LVM and LVEF

From: Defining left ventricular remodeling following acute ST-segment elevation myocardial infarction using cardiovascular magnetic resonance

 

Intra- observer

Inter-observer

 

SEM (95%CI)

Bias ± limits of agreement

MDC95

SEM (95%CI)

Bias ± limits of agreement

MDC95

T&P included as part of the LV volume

 %ΔLVEDV

 (n = 40)

3.9 (3.2 to 5.0) %

0.2 ± 6.8%

11%

4.3 (3.6 to 5.6) %

2.2 ± 6.0%

12%

 %ΔLVESV

 (n = 40)

3.4 (2.8 to 4.4) %

1.5 ± 8.6%

9%

4.0 (3.3 to 5.1) %

0.7 ± 9.8%

11%

 %ΔLVM

 (n = 40)

3.7 (3.1 to 4.8) %

0.9 ± 8.8%

10%

4.1 (3.4 to 5.3) %

0.2 ± 10.6%

11%

 %ΔLVEF

 (n = 40)

4.0 (3.2 to 5.1) %

−1.5 ± 9.0%

11%

4.2 (3.5 to 5.4) %

1.8 ± 9.8%

12%

T&P included as part of the LV mass

 %ΔLVEDV

 (n = 40)

3.8 (3.1 to 4.9) %

1.0 ± 8.0%

11%

4.5 (3.7 to 45.7) %

1.5 ± 8.2%

11%

 %ΔLVESV

 (n = 40)

3.6 (3.0 to 4.6) %

0.8 ± 8.4%

10%

4.5 (3.7 to 5.8) %

1.1 ± 10.0%

12%

 %ΔLVM

 (n = 40)

4.0 (3.3 to 5.2) %

−1.2 ± 9.0%

11%

4.4 (3.6 to 5.6) %

1.3 ± 11.0%

12%

 %ΔLVEF

 (n = 40)

4.2 (3.5 to 5.4) %

0 ± 9.8%

12%

4.6 (3.8 to 5.9) %

0.3 ± 9.8%

13%

  1. SEM standard error of the measurement, MDC95 minimal detectable change with 95% confidence, %Δ percentage change, LVEDV left ventricular end-diastolic volume LVESV left ventricular end-systole volume LVM left ventricular mass LVEF left ventricular ejection fraction T&P trabeculae and papillary muscles