Radiographic apparatus
US7940887B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Oct 11, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/5241
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An X-ray tube and a flat panel X-ray detector (FPD) are constructed movable parallel to each other in the same direction along a body axis which is a longitudinal direction of a patient. The X-ray tube intermittently emits radiation and the FPD detects radiation transmitted through the patient irradiated intermittently whenever the X-ray tube and FPD move every pitch. X-ray images O1, O2, . . . , OI, . . . , and OM are decomposed for every pitch noted above. The decomposed images are composed for each projection angle to obtain projection images P1, P2 and so on. Therefore, a sectional image with a long field of view in the longitudinal direction can be obtained by carrying out a reconstruction process based on the composed projection images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.