Relaxivity corrected response modulated excitation (RME): a T2-corrected technique achieving specified magnetization patterns from an RF pulse and a time-varying magnetic field.
We have reworked the theory of RF excitation to enable correction for relaxivity while designing response-modulated excitation (RME) to achieve specified magnetization targets. This results in a significant improvement in the ability to achieve a specified target magnetization, especially if excitation time is long or T2 is short. The methods presented may also be used to improve the quality of spatial-spectral pulses as well as localized spectroscopy, real-time imaging, real-time localized velocity, and noninvasive pressure measurement.
Pearlman
J D
JD
Beth Israel Hospital, Boston, MA 02215.
Wieczorek
T J
TJ
D000465:Algorithms; D016477:Artifacts; D004574:Electromagnetic Fields; D007089:Image Enhancement / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D008280:Magnetics; D008962:Models, Theoretical