Patent ID: 6373916
Filing Date: 2002-04-16
Classification: A61B

Abstract:
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.