Magnetic resonance imaging apparatus, image processing apparatus, and phase correcting method
US11579231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2021 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Dec 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5616
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To provide a technique in which, in imaging using an EPI method, an occurrence of an artifact when phase correction is performed for each channel is avoided and the phase correction is accurately performed. A common phase correction value to be applied to data of all channels is calculated using pre-scan data of each channel. The common phase correction value is obtained by combining a difference phase obtained for each of the channels. The difference phase is obtained by complex integration, while an absolute value of each channel is maintained as it is. The combination is performed by complex average, and averaging processing according to a weight of the absolute value is performed. The occurrence of an artifact can be prevented by using the common phase correction value, and robust phase correction can be performed by including the weight of the absolute value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.