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Ultrasonic doppler diagnostic apparatus and measuring method of diagnostic parameter

  • US 20060052704A1
  • Filed: 09/07/2005
  • Published: 03/09/2006
  • Est. Priority Date: 09/07/2004
  • Status: Active Grant
First Claim
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1. An ultrasonic Doppler diagnostic apparatus comprising:

  • a Doppler signal detecting unit which detects a Doppler signal at a predetermined region from a reception signal obtained by performing ultrasonic wave transmission/reception with respect to an object to be examined;

    a spectrum calculating unit which calculates a frequency spectrum of the Doppler signal;

    a trace waveform generating unit which generates a trace waveform representing a temporal change in a predetermined spectrum component in the frequency spectrum;

    a CAB processing unit which generates CAB data by extracting a trace waveform for each cardiac cycle from the generated trace waveform, and arraying said plurality of extracted trace waveforms along a first time axis representing a time direction associated with a heart rate and a second time axis representing a time direction within one cardiac cycle;

    a statistical processing unit which generates a diagnostic waveform by performing statistical processing using the CAB data;

    a storage unit which stores a selection criterion;

    a feature amount selecting unit which automatically selects a feature amount for the diagnostic waveform on the basis of the stored selection criterion;

    a diagnostic parameter measuring unit which measures a diagnostic parameter on the basis of the feature amount; and

    a display unit which displays a measurement result on the diagnostic parameter.

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