Correction of MR images for motion artifacts using navigator echoes and autocorrection
US6184682A · kind A · utility
21Cited by
8References
9Claims
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Key dates
| Filing date | Apr 13, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Apr 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30168
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Navigator echo signals are acquired during an MRI scan in which image data is acquired. The navigator echo signals are used to estimate an initial correction of the acquired image data for patient motion during the scan. The initially corrected image data is then autocorrected in an iterative process which measures image quality and makes further corrections to the image data until the measured image quality is within tolerance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.