Moving material projection imaging system using nuclear magnetic resonance
US4993414A · kind A · utility
9Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Aug 28, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/563
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A two-dimensional projection image of the NMR activity within a volume is obtained. The signals due to static material are not excited and do not appear in the projection image. The signals due to moving blood in vessels produce an isolated image of the vessels with the superimposed structure removed. Excitation systems are used which excite only moving material and return static material to equilibrium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.