High speed volumetric ultrasound imaging system

  • US 5,546,807 A
  • Filed: 12/02/1994
  • Issued: 08/20/1996
  • Est. Priority Date: 12/02/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for simultaneously displaying in real time, an image of at least one section of variable thickness of a three dimensional object having a range of acoustical properties, said at least one cross section being any cross section of said object and selected by a viewer viewing said displayed image, said apparatus comprising:

  • means adapted for radiating said object with a plurality of sonic beams such that each beam of said plurality of sonic beams generates a wave reflected from a plurality of locations distributed in all regions of said object;

    means for resolving said wave into a plurality of echo data, each echo datum of said plurality of echo data representing intensity of reflection of one of said plurality of sonic beams from one of said plurality of locations in said object respectively;

    scan converter means for storing each said datum at one of a plurality of addresses in a memory of said scan converter means, each one of said plurality of addresses corresponding to one of said plurality of locations in said object respectively;

    means for displaying said image of said at least one section including a screen with a plurality of display locations and terminal means for receiving a plurality of signals and displaying each signal as brightness at a respective one of said plurality of display locations corresponding to said image;

    buffer memory means for storing each said echo datum from said scan converter memory then transferring each said echo datum so as to apply a series of said plurality of signals to said terminal means of said display means;

    said buffer memory means having buffer memory addresses, each buffer memory address corresponding to one of said display locations respectively;

    means operated by said viewer for selecting a set of addresses in said scan converter memory of said scan converter corresponding to said at least one section in said object selected by said viewer;

    an address pointer means for matching each buffer memory address to a memory address in said memory of said scan converter means belonging to said set of memory addresses in said scan converter memory and transferring to each said buffer memory address said datum stored in said memory address of said scan converter memory respectively;

    means for providing data stored in said buffer memory address to said terminal means of said display means.

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