Variable bandwidth MRI data collection
US6255820A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1999 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Mar 8, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3621
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is directed to an MRI apparatus. It includes a main magnet 12 that generates a substantially uniform temporally constant main magnetic field, B.sub.0, through an examination region 14 wherein an object being imaged is positioned. A magnetic gradient generator produces magnetic gradients in the main magnetic field across the examination region 14. A transmission system includes an RF transmitter 24 that drives an RF coil 26 which is proximate to the examination region 14. A sequence control 40 manipulates the magnetic gradient generator and the transmission system to produce an MRI pulse sequence, such as an FSE pulse sequence. The MRI pulse sequence induces magnetic resonance echos 66 from the object. A reception system includes a receiver 30 that receives and demodulates the echos 66 at varying sample rates and varying bandwidths. A reconstruction processor 50 reconstructs a single image from data collected via the reception system, and an output device produces a human viewable rendering of the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.