General Electric Company

Leland Stanford Junior University

Insightec, Ltd.

William A Grissom

Yoav Levy

Yoav Medan

Michael Lustig

Kim Butts Pauly

Viola Rieke

Laura Irene Sacolick

Guido Kudielka

Mika Vogel

Proton resonance frequency shift thermometry may be improved by combining multibaseline and referenceless thermometry.

Hybrid referenceless and multibaseline PRF-shift magnetic resonance thermometry

Methods and systems for designing excitation pulses for magnetic resonance imaging are provided. One method includes parameterizing spin-domain rotation parameters to define parameterized variables and defining a constrained optimization problem based on the parameterized variables. The method also includes solving the constrained optimization problem and generating parameters for the RF pulses based on the solved problem, wherein the RF pulses are one of multidimensional RF pulses on non-constant gradient trajectories or one dimensional RF pulses on non-constant gradient trajectories.

Method and system for designing excitation pulses for magnetic resonance imaging

A system and method for radio-frequency (RF) field mapping are provided. One method includes encoding a Bphase in at least one magnetic resonance (MR) excitation pulse as an encoded Bphase MR excitation pulse for at least a subset of a plurality of transmit channels within a magnetic resonance imaging (MRI) system. The method also includes encoding a Bmagnitude in at least one off-resonance MR pulse as an encoded Bmagnitude off-resonance MR pulse for at least a subset of the plurality of transmit channels within the MRI system. The method further includes determining one or more composite Bfields resulting from a transmission of the at least one encoded Bphase MR excitation pulse and the at least one encoded Bmagnitude off-resonance MR pulse.

System and method for magnetic resonance radio-frequency field mapping

The phase background of a proton resonance frequency shift treatment image may be estimated by fitting a combination of baseline images to the treatment image.

Multibaseline PRF-shift magnetic resonance thermometry

Growing community of inventors

Munich, Germany

William A Grissom