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Table 3 Coefficients of variation (CV) between repeated measurements by the same (Intra-observer) and two (Inter-observer) observers in 5 pigs

From: Accuracy of echocardiographic area-length method in chronic myocardial infarction: comparison with cardiac CT in pigs

Echocardiographic index

Intra-observer

Inter-observer

CV (%)

CV (%)

Modified Simpson’s

 Ejection fraction

8.2

10.4

 End-diastolic volume

2.5

6.4

 End-systolic volume

4.7

10.9

Cylinder hemiellipsoid

 Ejection fraction

9.3

10.4

 End-diastolic volume

1.9

10.3

 End-systolic volume

2.5

6.4