MR imaging with an RF pulse producing reduced magnetization...

Details MR imaging with an RF pulse producing reduced magnetization... MR imaging with an RF pulse producing reduced magnetization...

2011-01-18

2011-01-18

Koval, Melissa J (Department: 2858)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

Reexamination Certificate

active

07872475

ABSTRACT:
A system and method are provided herein for designing and transmitting RF pulses which cause a reduced off-resonance magnetization transfer saturation. An RF pulse shape may be optimized according to a set of Bloch solutions defining a desired magnetization profile. An RF pulse may be transmitted according to this optimized shape according to a k-space trajectory which traverses a high amplitude portion of the RF pulse more times than one or more low amplitude portions. In addition, a generally alternating slice select gradient may be applied during transmission of the RF pulse.

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