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Apparatus for obtaining a three-dimensional reconstruction of anatomic structures through the acquisition of echographic images

  • US 5,159,931 A
  • Filed: 11/20/1989
  • Issued: 11/03/1992
  • Est. Priority Date: 11/25/1988
  • Status: Expired due to Term
First Claim
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1. An apparatus for obtaining three-dimensional echographic images comprising:

  • a two-dimensional image scanning means having a piezoelectric transducer contained in an echographic probe, having means for movement in predetermined angular increments for a predetermined number of times;

    means for digitalization of each two-dimensional image produced by said two-dimensional image scanning means;

    means for recording each two-dimensional image and the angular position of the recorded image;

    means for selecting in all the two-dimensional images, the vectors of horizontal pixels corresponding to a current polar plane;

    means for transformation of said vector coordinates from polar to cartesian coordinates;

    means for vector interpolation and construction of a polar image consisting of pixels;

    means for incrementing the polar plane number;

    means for recording in memory the three-dimensional matrix of pixels; and

    means for display of two-dimensional echographic images obtained by selecting a section plane of the three-dimensional matrix.

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