Modification of frequency response profiles of steady state free precession for magnetic resonance imaging (MRI)
US8274285B2 · kind B2 · utility
1Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2010 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Mar 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/485
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and methods for modification of the frequency response profile of steady-state free precession (SSFP) type of magnetic resonance imaging (MRI) sequences. Using alternating dephasing moments within succeeding radiofrequency (RF) excitation pulses, the frequency response function of SSFP sequences can be modified to different shapes such as near triangular or bell shaped. The particular response function as produced by alternating dephasing moments can be used, among others, for functional brain MRI, MR spectroscopy or spatial encoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.