Method for fast imaging by nuclear magnetic resonance
US4914391A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1988 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Nov 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5613
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Fast imaging in spin-spin relaxation time known as T.sub.2 is proposed. It is shown that, instead of awaiting total restoration of longitudinal magnetization of the magnetic moments of excited particles of a body subjected to the experiment, the excitation-measurement sequences of the experiment can be made to follow each other at a higher rate on condition that the angle of tilt of said magnetization is limited to a value which is distinctly lower than 90.degree., at which a good signal-to-noise ratio in response is still obtained. It is shown that, with a loss of signal-to-noise ratio of only 3 dB, there is obtained a rate of image production which is four times higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.