Pulsed field MRI system with non-resonant excitation
US5057776A · kind A · utility
31Cited by
2References
55Claims
0Family size
Inventor
Key dates
| Filing date | Dec 8, 1989 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Dec 8, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/385
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulsed strong magnetic field is applied to an object creating a magnetic moment distribution. Following the pulse a set of spatially orthogonal gradient fields pointed normal to the magnetic moments are used to cause the magnetic moments to precess around the axis of the gradient fields, producing time-varying magnetic fields indicative of the spatial distribution of the magnetic moments. These are then detected, processed and used to make magnetic resonance images of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.