Why the study?
Does echocardiographic contrast enhancement improve the accuracy of poor continuous-wave Doppler signals compared to dual-catheter measurement?
Population
A patient undergoing balloon pulmonary valvuloplasty with poor or weak continuous-wave Doppler signals
Comparison
Echocardiographic contrast enhancement using… vs Dual-catheter measurement of the outflow tract…
Design
Case_report
Authors
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Contrast enhancement may aid suboptimal CW Doppler signals; single case report leaves open generalizability and need for prospective validation.
Does echocardiographic contrast enhancement improve the accuracy of poor continuous-wave Doppler signals compared to dual-catheter measurement?
Echocardiographic contrast enhancement using indocyanine green dye and saline can improve the evaluation of poor continuous-wave Doppler signals.
Hagler et al. (1987) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: