Method for determining the position of a local antenna in an MR system
US6794872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3415
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method for determining the position of at least one local antenna in an examination space of a magnetic resonance (MR) system, magnetic resonance signals emitted by a body arranged in the examination space are received by the at least one local antenna location-encoded in at least one coordinate direction, intensity values that are spatially resolved in the coordinate direction are generated from the received magnetic resonance signals, and the position of the local antenna in the coordinate direction is determined from a curve of the intensity values along the coordinate direction, the intensity values having been subjected as needed to post-processing. The determination of the position of the local antenna ensues by adapting a function to the curve of the intensity values, the function being manipulable to approximate the shape of a sensitivity profile of the local antenna, and the position of a maximum of the adapted function is utilized as the position of the local antenna. A noise-insensitive determination of the position of local antennas with high precision is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.