Inventors:
Robert A. Kruger - Sandy UT
James A. Nelson - Salt Lake City UT
Assignee:
Thomson-CSF Broadcast, Inc. - Stamford CT
International Classification:
H04N 532
Abstract:
The disclosure is directed to a method and apparatus for generating a processed image of a cross-section through a body. Fluoroscopic tomography is achieved wherein a series of video frames of a cross-section of a body can be viewed in real time. In this manner, for example, one can monitor the progress of a bolus of contrast material moving through a blood vessel in the cross-section being viewed. In a form of the disclosure, a recorded series of frames of a principal plane of a body being imaged can be processed to obtain a corresponding series of frames that represent a plane of interest that is spaced from the principal plane, thereby avoiding the necessity of re-exposure for each new plane to be viewed. In accordance with the disclosed method, a body is disposed between a combination of a source of radiation and an associated detector, such that a beam of radiation from the source impinges angularly on the body and passes through to the detector. Relative rotational motion is effected between the beam and the body, such that a principal plane of interest in the body remains substantially in focus during the relative rotational motion.