Apparatus and methods for improved denoising in magnetic resonance imaging based on metal artifact reduction
US12310778B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2022 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | May 11, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20212
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to a method and apparatus correcting a metal artifact in magnetic resonance imaging (MRI) data. The method and apparatus acquire plural slices along a slice direction of a scanned region associated with a body part, estimate a spatial extent of a signal dispersion of the acquired plural slices along the slice direction, and combine the signal of the acquired plural slices along the slice direction based on the estimated spatial extent of the signal dispersion to generate a reconstructed image of the scanned region. The method and apparatus may identify, from the acquired plural slices along the slice direction, a slice with a highest pixel intensity; and identify at least one neighboring slice neighboring the slice with the highest pixel intensity based on a 3D spatial dipole response function, wherein combining the signal of the acquired plural slices along the slice direction based on the estimated spatial extent of the signal dispersion comprises combining (a) the signal of the slice with the highest pixel intensity and (b) the signal of the at least one neighboring slice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.