Method for magnetic resonance imaging using inversion recovery with on-resonant water suppression including MRI systems and software embodying same
Featured are methods for magnetic resonance imaging of a volume, such a volume having susceptibility-generating objects or interfaces having susceptibility mismatches therein. Such a method includes selectively visualizing one of susceptibility-generating objects or interfaces having susceptibility mismatches as hyperintense signals, where such visualizing includes controlling variable imaging parameters so as to control a geometric extent of a signal enhancing effect, m more particular aspects of the present invention, such selectively visualizing includes attenuating or essentially suppressing signals from fat and/or water, namely on-resonant water protons, so as to thereby enhance a signal(s) associated with magnetic susceptibility gradient(s). Also featured are MRI systems, apparatuses and/or applications programs for execution on a computer system controlling the MRI data acquisition process embodying such methods.
1. A method for magnetic resonance imaging of a volume, such a volume having therein one of magnetic susceptibility-generating objects or interfaces having susceptibility mismatches; said method comprising the step(s) of:
selectively visualizing, using a magnetic resonance imaging process, the susceptibility-generating objects or interfaces having susceptibility mismatches as hyperintense signal in a volume; and
wherein such visualizing includes attenuating or essentially suppressing a signal from one or more of fat and on-resonant water, so as to control a geometric extent of a signal enhancing effect with respect to the susceptibility-generating objects or interfaces having susceptibility mismatches.
2. The method of claim 1 , wherein said attenuating or essentially suppressing of the signal from one or more of fat and on-resonant water includes:
enhancing a signal(s) associated with magnetic susceptibility gradient(s).
3. A magnetic resonance imaging (MRI) system comprising:
a gradient magnetic sub-system including one or more gradient magnets and a power controller for selectively operating each of the one or more gradient magnets;
an RF transmitter sub-system, including an RF transmitter and one or more antennas operably coupled thereto;
system controller for selectively controlling each of the gradient magnetic subsystem and the RF subsystem, said controller including a microprocessor; and
an applications program for execution on the system controller, said applications program including code segments, instructions and criteria for:
controlling each of the gradient magnetic sub-system and RF subsystem so as to selectively visualize the susceptibility-generating objects or interfaces having susceptibility mismatches as hyperintense signals, where such visualizing includes attenuating or essentially suppressing a signal from one or more of fat and on-resonant water, so as to control a geometric extent of a signal enhancing effect with respect to the susceptibility-generating objects or interfaces having susceptibility mismatches.
4. The MRI system of claim 3 , wherein said attenuating or essentially suppressing of the signal from one or more of fat and on-resonant water includes code segments, instructions and criteria to enhance a signal(s) associated with magnetic susceptibility gradient(s).