Localized motion artifact reduction in projection imaging
US5287276A · kind A · utility
43Cited by
22References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Oct 22, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/421
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An x-ray CT scanner acquires projection data from a series of projections during a scan of a patient's chest Movement of the patient's chest due to respiration is also sensed during the scan and this acquired motion data is employed along with an warping function which models chest motion to calculate factors which correct the acquired projection data and reduce motion artifacts in an image produced by back projecting the acquired projection data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.