The interpretation of continuous wave ultrasonic Doppler blood velocity signals viewed as a problem in pattern recognition.

The process of inferring the state of a patient's circulation from ultrasonic Doppler waveforms may be regarded as a problem in pattern recognition. In this article, each stage in the process, as it might be applied to the analysis of Doppler signals, is examined in turn and it is shown how an automatic on-line system for arterial assessment may one day be practical using such principles.

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