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Ultrasonic diagnostic apparatus for displaying motion of moving portion by superposing a plurality of differential images

  • US 5,241,473 A
  • Filed: 10/11/1991
  • Issued: 08/31/1993
  • Est. Priority Date: 10/12/1990
  • Status: Expired due to Term
First Claim
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1. An ultrasonic diagnostic apparatus comprising:

  • (1) ultrasonic transmitting-receiving means for transmitting and receiving an ultrasonic wave to and from a body to be inspected;

    (2) tomographic scanning means for obtaining tomographic image data of a predetermined portion of said body to be inspected from a reflected echo signal from said ultrasonic transmitting-receiving means in a time series;

    (3) means for generating differential image data of images by performing a differential operation upon said images in said time series which have been obtained by said tomographic scanning means;

    (4) means for providing color codes which designate display colors to said differential image data;

    (5) means for cumulating a plurality of frames of said differential image data; and

    (6) means for displaying said cumulated plurality of frames of said differential image data in colors designated by said color codes.

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