Back to results
US 2013/0278257 A1Published application
Mri pulse sequence based on q-space trajectory technique
AssigneeUniversity of Pittsburgh—Of the Commonwealth System of Higher Education
InventorsFernando E. Boada, Stephen Ross Yutzy
Life of this patent
Estimating the term…
Abstract
Systems and methods capable of improving acquisition times associated with obtaining diffusion-weighted magnetic resonance imaging data are discussed. In aspects, multiple points in q-space can be sampled in a single repetition time (TR). Acquisition time can be further increased using other techniques, such as a radial raster or compressed sensing.
Claims20
A method of applying a magnetic resonance imaging (MRI) pulse sequence, comprising:
- applying a single radio frequency (RF) excitation pulse to excite a first set of nuclei associated with a first slice;
- applying a first diffusion preparation (DP) to the set of nuclei;
- obtaining first diffusion data associated with a first point in q-space via application of a first signal readout;
- applying a second DP to the set of nuclei;
- and
- obtaining second diffusion data associated with a second point in q-space via application of a second signal readout.
3 more elements
A magnetic resonance imaging (MRI) system, comprising:
- a magnet that generates an external field B0;
- an excitation/detection component that implements a q-space trajectory pulse sequence;
- and
- a coil component that obtains information associated with an anatomical region based on a q-space trajectory pulse sequence, wherein the coil component applies a single radio frequency (RF) excitation pulse to excite a first set of nuclei associated with a first slice of the anatomical region, wherein the coil component applies a first diffusion preparation (DP) to the set of nuclei, wherein the coil component obtains first diffusion data associated with a first point in q-space via application of a first signal readout, wherein the coil component applies a second DP to the set of nuclei, and wherein the coil component obtains second diffusion data associated with a second point in q-space via application of a second signal readout.
1 more element
A magnetic resonance imaging (MRI) system, comprising:
- means for generating an external field B0;
- means for implementing a q-space trajectory pulse sequence;
- and
- means for obtaining information associated with an anatomical region based on a q-space trajectory pulse sequence, wherein the means for obtaining applies a single radio frequency (RF) excitation pulse to excite a first set of nuclei associated with a first slice of the anatomical region, applies a first diffusion preparation (DP) to the set of nuclei, obtains first diffusion data associated with a first point in q-space via application of a first signal readout, applies a second DP to the set of nuclei, and obtains second diffusion data associated with a second point in q-space via application of a second signal readout.
1 more element
Dependencies are inferred from the claim text.