Why the study?
Does Doppler sample volume position affect transmitral flow measurements in normal patients?
Population
42 normal patients (aged 19-68 years)
Comparison
Doppler sample volume positioned downstream at… vs Doppler sample volume positioned at the mitral…
Design
Cross-sectional
Authors
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Transmitral Doppler measurements may vary by sample volume site; leaves open whether standardization improves accuracy or reproducibility.
Does Doppler sample volume position affect transmitral flow measurements in normal patients?
Doppler transmitral inflow parameters vary significantly along the inflow axis, highlighting the importance of sample volume position for accurate cardiac output measurement.
Delemarre et al. (1988) studied this question.
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