Apparatus and method for cross sectional imaging of a body
US4577222A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1982 |
| Grant date | Mar 18, 1986 |
| Priority date | — |
| Expiry date | Nov 26, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
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. A series of frames of electronic video sig…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.