Reducing image artifacts caused by patient motion during MR imaging
US6201393A · kind A · utility
21Cited by
4References
15Claims
0Family size
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Key dates
| Filing date | Dec 15, 1997 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Dec 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56509
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An MRI system acquires MRA data from two overlapping thin slabs using a 3DTOF pulse sequence. Motion artifacts are reduced by using a reverse centric phase encode order during the first thin slab acquisition and a centric phase encode order during the second thin slab acquisition. Patient movement is reduced by producing a uniform sound with gradient pulse sequences during the interval between thin slab acquisitions and during a preparation period prior to the first thin slab acquisition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.