Gradient coils having increased performance and decreased power consumption for use in MR systems
US5663648A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Jul 23, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3852
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gradient coil specifically designed to enhance the performance of Magnetic Resonance (MR) imaging and spectroscopy. In particular, the construction of gradient coils for use with resonant gradient power supplies to provide the necessary performance (large electromagnetic fields that can activated and deactivated rapidly) required in MR systems. These gradient coils require considerably less power than those presently employed for comparable performance and provide considerably more performance with existing power supplies. These coils are characterized by having a higher inductance than existing gradients of comparable size. Examples are given for the use of the invention in providing linear axial gradient field via a standard Maxwell gradient coil, with comparisons with existing coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.