Flyback Echo-Planar Imaging (EPI) Pulse Sequence with Embedded Chemical-Shift and Field Inhomogeneity Compensation Schemes and Artifact-Free Image Reconstruction Procedures

Case ID:
UA23-253
Invention:

This technology produces echo-planar imaging (EPI) MRI data free from typical EPI artifact (e.g., Nyquist artifact; chemical-shift artifact; geometric distortion) via two interrelated components. The first is a new algorithm that is used to acquire flyback echo-planar imaging (EPI) data, in which chemical-shift artifact and magnetic field inhomogeneity are inherently encoded in the invented scheme. The second part is an innovative flyback EPI reconstruction procedure, which is capable of generating artifact-free EPI data obtained with the invented acquisition scheme.

Background: 
It is typical in Magnetic Resonance Imaging for “artifacts” to appear as bright spots where there shouldn’t be or distortions in the image, produced by this non-invasive diagnostic method. This technology improves the imaging quality of MRI machines. It uses Echo Planar Imaging with pulse sequencing to characterize the lipid and non-lipid portions of the imaging and using this knowledge to create better (artifact-free) images.

Applications: 

  • Medical imaging


Advantages: 

  • Greater image clarity
  • Reduced imaging artifacts
  • Greater efficiency
  • Increased cost benefit
Patent Information:
Contact For More Information:
Tariq Ahmed
Sr Licensing Manager, College of Engineering
The University of Arizona
tariqa@tla.arizona.edu
Lead Inventor(s):
Nan-kuei Chen
Keywords: