Patent application number | Description | Published |
20100253340 | ADIABATIC MAGNETIZATION PREPARATION FOR B1 AND B0 INSENSITIVE HIGH CONTRAST MRI - A magnetic resonance image is produced by radial imaging using one or more preparatory pulses. The magnetic preparation pulse can include one or more adiabatic pulses. | 10-07-2010 |
20100253341 | PULSE GAP CYCLING FOR IMPROVED SWIFT - A magnetic resonance image is produced by shifting a gap during acquisition of spin data for a specimen. The spin data is generated by a gapped excitation sequence. | 10-07-2010 |
20100315082 | FREQUENCY SWEPT EXCITATION FOR MAGNETIC RESONANCE - A method of magnetic resonance is provided that uses a frequency swept excitation wherein the acquired signal is a time domain signal is provided. In one embodiment, the method comprises, applying a sweeping frequency excitation and acquiring a time domain signal. The sweeping frequency excitation has a duration and is configured to sequentially excite isochromats having different resonant frequencies. Acquisition of the time domain signal is done during the duration of the sweeping frequency excitation. The time domain signal is based on evolution of the isochromats. | 12-16-2010 |
20110116696 | DIPOLE MATCHED FILTER FOR MRI - A method includes receiving k-space data corresponding to magnetic resonance data for a subject and selecting a template for analysis. In addition, the method includes generating an image using the k-space data and using the template. | 05-19-2011 |
20120092010 | LOCALISATION OF MAGNETIC PARTICLES BY MEANS OF SWIFT-MRI - Positive contrast localization of magnetic (e.g. superparamagnetic) particles in vivo or in vitro by means of SWIFT-MRI using the imaginary component of MR image data in combination with an anatomic reference image derived from the real or magnitude component. | 04-19-2012 |
20130043867 | SIDEBAND PROCESSING FOR MAGNETIC RESONANCE - A method includes applying a pulse train to a spin system in a scanner. The pulse train has a plurality of discontinuities in a time domain. The method includes receiving a response from the spin system. The response corresponds to a gated signal. The method includes accessing a correction factor corresponding to the scanner. The method includes calculating a correction to the response based on the correction factor. The method includes generating an output based on the correction. | 02-21-2013 |
20130084023 | MULTISTEP CORRECTION FOR ANGLE CONSISTENT ARTIFACTS IN RADIAL SAMPLED DATASETS - This document discloses, among other things, a method for removing a bullseye artifact from a radial image generated using magnetic resonance and using a swept frequency pulse. | 04-04-2013 |
20130085374 | METHOD OF OSCILLOGRAM FILTERING FOR RADIAL MRI DATA - A system includes a data receiver, a sinogram generator, a processor, a filter module, and an output module. The data receiver is configured to receive radial ordered magnetic resonance data. The sinogram generator is configured to generate a first sinogram corresponding to a view angle as a function of a readout direction for the magnetic resonance data. The processor is configured to generate an oscillogram having an angular frequency axis. The oscillogram corresponds to a Fourier transform of the first sinogram. The filter module is configured to selectively filter a peak in a projection formed along a selected axis of the oscillogram, the peak being related to an interference signal such as an RF interference. The selected axis is orthogonal to the angular frequency axis. The output module is configured to form a second sinogram corresponding to a transform of the filtered projection | 04-04-2013 |
20130271133 | STEERING RESONANCE ALONG A TRAJECTORY - A method for generating a magnetic resonance image includes applying a radio frequency (RF) pulse to a specimen. The method includes modulating a spatially varying magnetic field to impart an angular velocity to a trajectory of a region of resonance relative to the specimen. The method includes acquiring data corresponding to the region of resonance and reconstructing a representation of the specimen based on the data. | 10-17-2013 |
20130320980 | PULSE GAP CYCLING FOR IMPROVED SWIFT - A magnetic resonance image is produced by shifting a gap during acquisition of spin data for a specimen. The spin data is generated by a gapped excitation sequence. | 12-05-2013 |