Apparatus for calculating coordinate data of desired point in subject to be examined
AssigneeKabushiki Kaisha Toshiba
InventorYoshio Machida
Life of this patent
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Abstract
A method of calculating coordinate data of a desired point in a subject to be examined is disclosed. A phantom image is obtained by integrally photographing a second frame, a frame coordinate phantom, and a second indicator phantom by using a computed tomographic apparatus. A subject image is then obtained by integrally photographing a first frame, the subject, and a first indicator phantom at the same position assumed when the phantom image is photographed. Coordinate data is obtained by correcting the deviation between the coordinates of the subject on the real space and the coordinates of the subject on the image photographed by the computed tomographic apparatus.
Claims8
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.
An apparatus for calculating coordinate data of a desired point in a subject comprising:
- a first frame for holding the subject therein;
- a first indicator phantom affixed outside said first frame;
- a second frame having geometrically the same shape as that of said first frame;
- a second indicator phantom affixed outside said second frame;
- a frame coordinate phantom affixed inside said second frame;
- magnetic resonance imaging means for imaging by magnetic resonance said first frame with said subject and said first indicator phantom to produce a first image, and for imaging said second frame with said frame coordinate phantom and said second 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.
Dependencies are inferred from the claim text.