Method and system for MRI with lipid suppression
AssigneeGeneral Electric Company
InventorsChristopher Judson Hardy, William Thomas Dixon
Life of this patent
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Abstract
A method and system are provided for acquiring images with water and lipid separation using a magnetic resonance imaging (MRI) system comprising applying a plurality of steady-state free precession (SSFP) radio-frequency (RF) excitation pulses having respective amplitudes that correspond substantially to a binomial distribution to discriminate lipids from water.
Claims26
A method for acquiring images with water and lipid separation using a magnetic resonance imaging (MRI) system, the method comprising:
- applying during imaging with the MRI system a plurality of steady-state free precession (SSFP) radio-frequency (RF) excitation pulses having respective amplitudes that correspond substantially to a binomial distribution to discriminate lipids from water;
- and,
- combining respective acquired magnetization signals corresponding to intermediate points between the plurality of pulses in a selected manner to further enhance discrimination of lipids from water.
A method for acquiring images with water and lipid separation using a magnetic resonance imaging (MRI) system, the method comprising:
- applying during imaging with the MRI system a plurality of steady-state free precession (SSFP) radio-frequency (RF) excitation pulses having respective amplitudes that correspond substantially to a binomial distribution, the pulses being applied repeatedly during imaging to produce respective images corresponding to lipids and water;
- and,
- combining respective acquired magnetization signals corresponding to intermediate points between the plurality of pulses in a selected manner to further enhance discrimination of lipids from water.
A system for Magnetic Resonance Imaging (MRI) for acquiring images of an object comprising:
- a magnetic field driver for driving a field gradient;
- a magnetic field controller for controlling the magnetic field;
- a transmitter for generating an radio frequency (RF) pulse to cause resonance and wherein the transmitter is adapted to generate a plurality of steady-state free precession (SSFP) radio-frequency excitation pulses having respective amplitudes that correspond substantially to a binomial distribution to discriminate lipids from water;
- a receiver for receiving and detecting magnetic resonance signals generated from the object;
- and,
- a processor for performing image reconstruction and for generating images for display and the processor being adapted to combine respective acquired magnetization signals corresponding to intermediate points between the plurality of pulses in a selected manner to further enhance discrimination of lipids from water.
Dependencies are inferred from the claim text.