December 9, 2002
Automated analysis of flow convergence proximal to regurgitant orifices: flow rate calculation using digital Doppler velocity maps
Key result
An automated algorithm using digital Doppler velocity maps to calculate flow rate showed good agreement with actual flow rates during in vitro testing (r=0.98, Delta Q=-3.7±15.8 cm³/sec).
Population
In vitro model of valvular regurgitation
Comparison
Automated algorithm using digital Doppler… vs Actual flow rate
Design
Preclinical
Authors
Discussion
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Member takes
Implication
May support automated flow quantification research; leaves open in vivo and clinical validation.
Structured PICO
P
Population
In vitro model of valvular regurgitation
I
Intervention
Automated algorithm using digital Doppler velocity maps to calculate flow rate
C
Comparator
Actual flow rate
O
Outcome
Agreement between calculated and actual flow ratesurrogate
Main Result
Effect estimate: r=0.98
An automated algorithm using digital Doppler velocity maps accurately calculates flow rate in an in vitro model, potentially improving the quantification of valvular regurgitation.
Cite This Study
Thomas et al. (2002) studied valvular regurgitation. Automated algorithm using digital Doppler velocity maps was evaluated on Flow rate agreement (r=0.98). An automated algorithm using digital Doppler velocity maps to calculate flow rate showed good agreement with actual flow rates during in vitro testing (r=0.98, Delta Q=-3.7±15.8 cm³/sec).