An analysis of the intrinsic resonance offset dependence of magnetization generated by stimulated echo pulse sequences for noncoupled spins.
| Publication Type | Academic Article |
| Authors | Ballon D, Garwood M, Koutcher J |
| Journal | Magn Reson Imaging |
| Volume | 9 |
| Issue | 4 |
| Pagination | 569-75 |
| Date Published | 01/01/1991 |
| ISSN | 0730-725X |
| Keywords | Magnetic Resonance Spectroscopy |
| Abstract | It is demonstrated that the basic radiofrequency pulse train used to generate stimulated echoes (90x-tau TE-90x-tau TM-90x-tau TE-Acq.) is in general characterized by strong amplitude and phase modulations of the transverse magnetization as a function of the resonance offset. Two dephasing techniques which eliminate the modulations are investigated both theoretically and experimentally, and a simple formula is derived for calculating the relative modulation across a spectrum as a function of gradient strength and duration, echo delay, and spectral linewidth. |
| DOI | 10.1016/0730-725x(91)90044-m |
| PubMed ID | 1779728 |