Synchronous detector as a new paradigm for automatic microembolus detection

International audienceWe propose here a new detector paradigm based on synchronous detection. Unlike standard energy detectors, this kind of detector uses the pseudo-cyclo-stationarity properties of blood Doppler signals. The new detector, that is synchronized with cardiac rhythm, was compared to a gold standard and a standard energy detector. Detectors were evaluated according to clinical recordings from patients with carotid stenoses. The results showed that it was possible to detect inaudible microemboli. The detection rate was improved by 30% and the false alarm rate was below 2%