Why the study?
Is Doppler ultrasonic estimation of cardiac output reproducible and accurate compared to standard methods in humans?
Is Doppler ultrasonic estimation of cardiac output reproducible and accurate compared to standard methods in humans?
Doppler ultrasound is a safe, fairly reproducible, and reasonably accurate method for measuring cardiac output in selected patients provided signal quality is adequate.
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Warrants caution with single Doppler aortic measurements clinically; leaves open standardization efforts in research.
Andrew J.S. Coats (1990) studied this question.