Two-dimensional echocardiographic measurements of left ventricular dimensions and function are accurate and reproducible, though serial assessments should ideally be performed by the same investigator to minimize variation.
Same-investigator serial echocardiography may limit measurement variability in practice; extends reproducibility data to routine cohorts.
Repeated echo recordings were the dominant component of variation. Two-dimensional echo measurements are reproducible and accurate, but the same investigator should follow the same patients.
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Otterstad et al. (1997) studied this question.
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