Method for fast magnetic resonance radiofrequency coil transmission profile mapping
US8076939B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Nov 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5611
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for producing an image indicative of characteristics of a radiofrequency (“RF”) coil with a magnetic resonance imaging (“MRI”) system is disclosed. The method includes acquiring MR signals while performing a pulse sequence with the MRI system and driving the RF coil at a selected transmission power. This process is repeated a plurality of times to drive the RF coil at a different transmission powers during each repetition. A plurality of images are reconstructed from the acquired MR signals and an image indicative of RF reception characteristics of the RF coil is produced from the reconstructed images. Subsequently, an image indicative of RF transmission characteristics of the RF coil is produced using the image indicative of the RF receiver response. More specifically, only one data acquisition is necessary for each RF coil element to produce the image indicative of the RF transmission characteristics for that coil element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.