Non harmonic NMR spin echo imaging
US4695800A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1985 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Jun 6, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56554
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A technique for producing multiple spin echo signals following an initial excitation pulse is provided. A first inverting pulse is applied a given time interval following the initial excitation pulse, resulting in the formation of the usual first spin echo signal after passage of the given time interval. At a later point in time, a second inverting pulse is applied. The time interval between the initial excitation pulse and this second inverting pulse is not required to be harmonically related to the first given time interval. This results in the production of at least a second, later occurring spin echo signal which does not contain harmonically-related artifact components of the earlier pulses and spin echo signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.