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Apparatus for calculating coordinate data of desired point in subject to be examined

  • US 5,285,787 A
  • Filed: 09/29/1992
  • Issued: 02/15/1994
  • Est. Priority Date: 09/12/1989
  • Status: Expired due to Fees
First Claim
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1. An apparatus for calculating coordinate data of a desired point in a subject comprising:

  • a frame for detachably holding the subject therein;

    an indicator phantom affixed outside said frame;

    a frame coordinate phantom being detachably mounted within said frame in place of said subject;

    magnetic resonance imaging means for imaging said frame with said subject and said indicator phantom to produce a first image, and for imaging said frame with said frame coordinate phantom and said indicator phantom to produce a second image; and

    calculating means for calculating the coordinate data of the desired point in the subject based upon said first image and said second image.

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