Method for the removal of artifacts in an NMR imaging experiment
US4926124A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1988 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jul 6, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56509
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
So-called motion artifacts are removed in NMR imaging experiments by choosing a 2DFT type imaging method and by choosing a phase encoding pitch, which is a multiple of a useful encoding pitch determined by the height of the image field to be depicted. It is shown that, after the image reconstruction has been computed by Fourier transform, the central image corresponds to the depiction of the continuous components of the magnetic moments of the particles located in an examined cross-section of a body under examination, and that these continuous components are not affected by all the variations in the rate of a cyclical phenomenon which disturbs the images (in general the cardiac cycle).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.