British heart journal
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British heart journal · Feb 1992
Randomized Controlled Trial Comparative Study Clinical TrialDetermination of cardiac output by an angle and diameter independent dual beam Doppler technique in critically ill infants.
To compare cardiac output measurements in critically ill infants by the dual beam Doppler and thermodilution techniques. ⋯ The dual beam Doppler technique was shown to have promise for the non-invasive determination of cardiac output in critically ill infants.