Claims
- 1. A method of improving spectral-spatial excitation in magnetic resonance imaging comprising the steps of:
- a) placing an object to be imaged in a static magnetic field (B.sub.0),
- b) applying a phase modulated RF excitation pulse to said object, the phase modulation being based on an empirically adjusted scaled copy of a slice-selection gradient whereby said RF excitation pulse providing spectral-spatial excitation to image tissue which suppresses fat, the phases modulation compensation for B.sub.0 eddy current phase modulation of the RF excitation pulse, and
- c) detecting signals emitted from said object.
- 2. Apparatus for use in providing improved spectral-spatial excitation in magnetic resonance imaging of an object comprising
- a) means for establishing a static magnetic field (B.sub.0 through the object,
- b) means for applying a phase modulated RF excitation pulse to said object, the phase modulation being based on an empirically adjusted scaled copy of a slice-selection gradient whereby said RF excitation pulse providing spectral-spatial excitation to image tissue which suppresses fat, the phases modulation compensation for B.sub.0 eddy current phase modulation of the RF excitation pulse, and
- c) detecting signals emitted from said object.
- 3. Apparatus as defined by claim 2 and further including means for providing an image using the detected signals.
Government Interests
The U.S. Government has rights in the invention pursuant to NIH Grant No. RO1CA50948 to Stanford University.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5289127 |
Doddrell et al. |
Feb 1994 |
|
5296809 |
Roberts et al. |
Mar 1994 |
|