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X-ray CT apparatus

  • US 6,373,916 B1
  • Filed: 05/09/2000
  • Issued: 04/16/2002
  • Est. Priority Date: 05/10/1999
  • Status: Expired due to Fees
First Claim
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1. An X-ray CT apparatus for picking up sectional images of an object by irradiating the object with a conical X-ray beam from around a body axis of the object and detecting X rays transmitted through the object, said apparatus comprising:

  • X-ray image pickup means including an X-ray tube for emitting the conical X-ray beam to said object placed on a top board, and a flat panel X-ray sensor with X-ray detecting elements arranged in a matrix form for detecting transmitted X rays;

    drive means for driving the X-ray image pickup means about the body axis of said object;

    image reconstruct means for reconstructing a sectional images of a designated section based on transmitted X-ray detection data outputted from said flat panel X-ray sensor of the X-ray image pickup means driven in a fluoroscopic imaging mode;

    image display means for displaying X-ray images;

    fluoroscopic imaging means for acquiring a fluoroscopic image based on the transmitted X-ray detection data outputted from said flat panel X-ray sensor of the X-ray image pickup means driven in the fluoroscopic imaging mode, and displaying said fluoroscopic image on said image display means; and

    reconstruct area superimposing means for displaying a reconstruct area for CT imaging as superimposed on said fluoroscopic image acquired by said fluoroscopic imaging means.

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