Method for magnetic resonance imaging of an object
US5125407A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1990 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Feb 23, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/561
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for imaging the interior of a three dimensional object. A non-selective composite hard RF pulse is generated in the presence of a uniform magnetic field. Phase encoding pulses are generated along the first and a third axis, respectively, and a frequency encoding pulse comprised of a de-phasing portion and a re-phasing portion is generated along a second axis. During the re-phasing portion of the frequency encoding pulse, an asymmetrical fractional gradient echo containing information related to the object being imaged is produced. A next asymmetrical fractional gradient echo is then produced for next phase encoding pulses along the first and third axes. After an asymmetrical fractional gradient echo is produced for all phase encoding pulses, an image of the object is produced from the series of produced asymmetrical fractional gradient echoes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.