Key result
Transcranial Doppler detection of microembolic signals in patients with prosthetic cardiac valves showed no significant differences among human observers, neuronal networks, or over time (P > .05).
Why the study?
Is transcranial Doppler detection of microembolic signals reproducible in patients with mechanical prosthetic heart valves?
Population
93 patients with mechanical prosthetic heart valves
Design
Cohort, Observers blinded to previous results
Follow-up
Up to 1 year
Authors
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Reproducible TCD microembolic detection across observers and time; leaves open neuronal network adoption in prosthetic valve monitoring.
Observational (n=93)
Blinded (to previous results)
Randomized (videotapes)
Yes
Is transcranial Doppler detection of microembolic signals reproducible in patients with mechanical prosthetic heart valves?
p-value: p=> .05
Transcranial Doppler detection of microembolic signals in patients with mechanical prosthetic valves is highly reproducible, and automated detection using a neuronal network is feasible and reliable.
Georgiadis et al. (1995) conducted an observational in Mechanical prosthetic heart valves (n=93). Transcranial Doppler monitoring for microembolic signals vs. Automated neuronal network and repeat examinations was evaluated on Differences in microembolic signal counts among observers, neuronal network, and repeat examinations (p=> .05). Transcranial Doppler detection of microembolic signals in patients with prosthetic cardiac valves showed no significant differences among human observers, neuronal networks, or over time (P > .05).
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